{"id":"CVE-2025-35973","aliases":["ALPINE-CVE-2025-35973","ALSA-2026:65147","ALSA-2026:67979","ALSA-2026:68011","BELL-CVE-2025-35973","CLSA-2026-1789116715","CLSA-2026-1789116898","CLSA-2026-1789117244","CLSA-2026-1790091171","CLSA-2026-1791485704","DEBIAN-CVE-2025-35973","EUVD-2025-210692","GHSA-g4r3-3x88-prrw","MGASA-2026-0374","OESA-2026-3408","RHSA-2026:65147","RHSA-2026:67979","RHSA-2026:68011","RLSA-2026:65147","RLSA-2026:67979","RLSA-2026:68011","SUSE-SU-2026:23449-1","SUSE-SU-2026:23459-1","SUSE-SU-2026:23539-1","SUSE-SU-2026:23602-1","SUSE-SU-2026:3917-1","SUSE-SU-2026:4019-1","SUSE-SU-2026:4025-1","UBUNTU-CVE-2025-35973","openSUSE-SU-2026:11599-1","openSUSE-SU-2026:21736-1"],"status":"published","title":"Improper handling of values for some Intel(R) Processors within Ring 0: Kernel, Hypervisor and...","description":"Improper handling of values for some Intel(R) Processors within Ring 0: Kernel, Hypervisor and Bare Metal OS may allow an escalation of privilege. Authorized adversary with a privileged user combined with a high complexity attack may enable escalation of privilege. This result may potentially occur via local access when attack requirements are present with special internal knowledge and require no user interaction. The potential vulnerability may impact the confidentiality (low), integrity (low) and availability (none) of the vulnerable system, resulting in subsequent system confidentiality (high), integrity (high) and availability (none) impacts.","severity":{"version":"4.0","score":4.5,"vector":"CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:N/VC:L/VI:L/VA:N/SC:H/SI:H/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00102,"percentile":0.00923,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-229"],"published":"2026-08-11T16:28:25Z","modified":"2026-11-06T17:28:35Z","fixes":[{"ecosystem":"Alpine:v3.21","package":"intel-ucode","fixed_in":["20260812-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.22","package":"intel-ucode","fixed_in":["20260812-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.23","package":"intel-ucode","fixed_in":["20260812-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.24","package":"intel-ucode","fixed_in":["20260812-r0"],"sources":["osv"]},{"ecosystem":"Alpaquita:23","package":"intel-ucode","fixed_in":["20260812-r0"],"sources":["osv"]},{"ecosystem":"Alpaquita:25","package":"intel-ucode","fixed_in":["20260812-r0"],"sources":["osv"]},{"ecosystem":"Alpaquita:stream","package":"intel-ucode","fixed_in":["20260812-r0"],"sources":["osv"]},{"ecosystem":"TuxCare:CentOS:8.5","package":"microcode_ctl","fixed_in":["4:20260812-1.el8.tuxcare.els1"],"sources":["osv"]},{"ecosystem":"TuxCare:CentOS:8.4","package":"microcode_ctl","fixed_in":["4:20260812-1.el8.tuxcare.els1"],"sources":["osv"]},{"ecosystem":"TuxCare:CentOS-Stream:8","package":"microcode_ctl","fixed_in":["4:20260812-2.el8.tuxcare.els1"],"sources":["osv"]},{"ecosystem":"TuxCare:AlmaLinux:9.6","package":"microcode_ctl","fixed_in":["4:20250211-1.20260812.1.el9_6.tuxcare.els2"],"sources":["osv"]},{"ecosystem":"TuxCare:AlmaLinux:9.2","package":"microcode_ctl","fixed_in":["4:20250211-1.20260925.1.el9_2.tuxcare.els3"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"intel-microcode","fixed_in":["3.20260925.1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Alpine:v3.21","package":"intel-ucode","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"20260812-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.22","package":"intel-ucode","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"20260812-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.23","package":"intel-ucode","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"20260812-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.24","package":"intel-ucode","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"20260812-r0"}]}]},{"source":"osv","ecosystem":"AlmaLinux:8","package":"microcode_ctl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4:20260812-1.el8_10"}]}],"bundled":2},{"source":"osv","ecosystem":"AlmaLinux:10","package":"microcode_ctl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4:20260812-0.el10_2"}]}],"bundled":2},{"source":"osv","ecosystem":"AlmaLinux:9","package":"microcode_ctl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4:20260210-1.20260812.1.el9_8"}]}],"bundled":2},{"source":"osv","ecosystem":"Alpaquita:23","package":"intel-ucode","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"20230516a-r0"},{"fixed":"20260812-r0"}]}]},{"source":"osv","ecosystem":"Alpaquita:25","package":"intel-ucode","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"20250512-r0"},{"fixed":"20260812-r0"}]}]},{"source":"osv","ecosystem":"Alpaquita:stream","package":"intel-ucode","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"20230214-r0"},{"fixed":"20260812-r0"}]}]},{"source":"osv","ecosystem":"TuxCare:CentOS:8.5","package":"microcode_ctl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4:20260812-1.el8.tuxcare.els1"}]}]},{"source":"osv","ecosystem":"TuxCare:CentOS:8.4","package":"microcode_ctl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4:20260812-1.el8.tuxcare.els1"}]}]},{"source":"osv","ecosystem":"TuxCare:CentOS-Stream:8","package":"microcode_ctl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4:20260812-2.el8.tuxcare.els1"}]}]},{"source":"osv","ecosystem":"TuxCare:AlmaLinux:9.6","package":"microcode_ctl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4:20250211-1.20260812.1.el9_6.tuxcare.els2"}]}]},{"source":"osv","ecosystem":"TuxCare:AlmaLinux:9.2","package":"microcode_ctl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4:20250211-1.20260925.1.el9_2.tuxcare.els3"}]}]},{"source":"osv","ecosystem":"Debian:12","package":"intel-microcode","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.20080131-1","0.20080220-1","0.20080401-1","0.20080910-1","0.20080910-2","0.20090330-1","0.20090927-1","0.20100826-1","0.20100914-1","0.20101123-1","0.20110428-1","0.20110915-1","0.20111110-1","0.20120606-1","1.20120606.1","1.20120606.2","1.20120606.3","1.20120606.4","1.20120606.5","1.20120606.6","1.20120606.6~bpo60+1","1.20120606.v2.1","1.20120606.v2.2","1.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Authorized adversary with a privileged user combined with a high complexity attack may enable escalation of privilege. This result may potentially occur via local access when attack requirements are present with special internal knowledge and require no user interaction. The potential vulnerability may impact the confidentiality (low), integrity (low) and availability (none) of the vulnerable system, resulting in subsequent system confidentiality (high), integrity (high) and availability (none) impacts.","status":"published","published":"2026-08-11T16:28:25.564Z","modified":"2026-08-12T18:47:43.179Z","cvss":[{"version":"4.0","score":4.5,"vector":"CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:N/VC:L/VI:L/VA:N/SC:H/SI:H/SA:N","level":"medium","assessor":"cna"}],"cwes":["CWE-229"],"updated_at":"2026-11-02T14:32:51.199669Z"}],"euvd":[{"id":"EUVD-2025-210692","description":"Improper handling of values for some Intel(R) Processors within Ring 0: Kernel, Hypervisor and Bare Metal OS may allow an escalation of privilege. Authorized adversary with a privileged user combined with a high complexity attack may enable escalation of privilege. This result may potentially occur via local access when attack requirements are present with special internal knowledge and require no user interaction. The potential vulnerability may impact the confidentiality (low), integrity (low) and availability (none) of the vulnerable system, resulting in subsequent system confidentiality (high), integrity (high) and availability (none) impacts.","status":"published","published":"2026-08-11T16:28:25Z","modified":"2026-08-12T18:47:43Z","cvss":[{"version":"4.0","score":4.5,"vector":"CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:N/VC:L/VI:L/VA:N/SC:H/SI:H/SA:N","level":"medium"}],"updated_at":"2026-11-02T18:01:57.953172Z"}],"ghsa":[{"id":"GHSA-g4r3-3x88-prrw","title":"Improper handling of values for some Intel(R) Processors within Ring 0: Kernel, Hypervisor and...","description":"Improper handling of values for some Intel(R) Processors within Ring 0: Kernel, Hypervisor and Bare Metal OS may allow an escalation of privilege. Authorized adversary with a privileged user combined with a high complexity attack may enable escalation of privilege. This result may potentially occur via local access when attack requirements are present with special internal knowledge and require no user interaction. The potential vulnerability may impact the confidentiality (low), integrity (low) and availability (none) of the vulnerable system, resulting in subsequent system confidentiality (high), integrity (high) and availability (none) impacts.","status":"published","published":"2026-08-11T18:30:50Z","modified":"2026-08-11T18:30:58Z","cvss":[{"version":"4.0","score":4.5,"vector":"CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:N/VC:L/VI:L/VA:N/SC:H/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium"}],"cwes":["CWE-229"],"updated_at":"2026-11-02T15:10:18.151039Z"}],"nvd":[{"id":"CVE-2025-35973","description":"Improper handling of values for some Intel(R) Processors within Ring 0: Kernel, Hypervisor and Bare Metal OS may allow an escalation of privilege. Authorized adversary with a privileged user combined with a high complexity attack may enable escalation of privilege. This result may potentially occur via local access when attack requirements are present with special internal knowledge and require no user interaction. The potential vulnerability may impact the confidentiality (low), integrity (low) and availability (none) of the vulnerable system, resulting in subsequent system confidentiality (high), integrity (high) and availability (none) impacts.","status":"published","published":"2026-08-11T17:17:43.773Z","modified":"2026-09-29T11:10:00.15Z","cvss":[{"version":"4.0","score":4.5,"vector":"CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:N/VC:L/VI:L/VA:N/SC:H/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium","assessor":"secondary"}],"cwes":["CWE-229"],"updated_at":"2026-11-02T14:12:03.20248Z"}],"osv":[{"id":"ALPINE-CVE-2025-35973","description":"Improper handling of values for some Intel(R) Processors within Ring 0: Kernel, Hypervisor and Bare Metal OS may allow an escalation of privilege. Authorized adversary with a privileged user combined with a high complexity attack may enable escalation of privilege. This result may potentially occur via local access when attack requirements are present with special internal knowledge and require no user interaction. The potential vulnerability may impact the confidentiality (low), integrity (low) and availability (none) of the vulnerable system, resulting in subsequent system confidentiality (high), integrity (high) and availability (none) impacts.","status":"published","published":"2026-08-11T17:17:43.773Z","modified":"2026-08-30T15:30:02.43420487Z","cvss":[{"version":"4.0","score":4.5,"vector":"CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:N/VC:L/VI:L/VA:N/SC:H/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium"}],"updated_at":"2026-11-02T15:27:50.269992Z"},{"id":"DEBIAN-CVE-2025-35973","description":"Improper handling of values for some Intel(R) Processors within Ring 0: Kernel, Hypervisor and Bare Metal OS may allow an escalation of privilege. Authorized adversary with a privileged user combined with a high complexity attack may enable escalation of privilege. This result may potentially occur via local access when attack requirements are present with special internal knowledge and require no user interaction. The potential vulnerability may impact the confidentiality (low), integrity (low) and availability (none) of the vulnerable system, resulting in subsequent system confidentiality (high), integrity (high) and availability (none) impacts.","status":"published","published":"2026-08-11T17:17:43.773Z","modified":"2026-11-06T17:28:35.570152928Z","cvss":[{"version":"4.0","score":4.5,"vector":"CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:N/VC:L/VI:L/VA:N/SC:H/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium"}],"updated_at":"2026-11-06T18:00:26.717991Z"},{"id":"OESA-2026-3408","title":"microcode_ctl security update","description":"This is a tool to transform and deploy microcode update for x86 CPUs.\r\n\r\nSecurity Fix(es):\n\nImproper handling of overlap between protected memory ranges for some Intel(R) Xeon(R) 6 processors when using Intel(R) TDX within SMM may allow an escalation of privilege. SMM adversary with a privileged user combined with a high complexity attack may enable escalation of privilege. This result may potentially occur via local access when attack requirements are present with special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (high), integrity (high) and availability (none) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts.(CVE-2025-31936)\n\nInsufficient granularity of access control in some subsystem for some Intel(R) Xeon(R) 6 Scalable processors with Intel(R) TDX may allow an information disclosure. Authorized adversary with an authenticated user combined with a high complexity attack may enable data exposure. This result may potentially occur via local access when attack requirements are present with special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (none), integrity (none) and availability (none) of the vulnerable system, resulting in subsequent system confidentiality (high), integrity (none) and availability (none) impacts.(CVE-2025-31938)\n\nImproper handling of values for some Intel(R) Processors within Ring 0: Kernel, Hypervisor and Bare Metal OS may allow an escalation of privilege. Authorized adversary with a privileged user combined with a high complexity attack may enable escalation of privilege. This result may potentially occur via local access when attack requirements are present with special internal knowledge and require no user interaction. The potential vulnerability may impact the confidentiality (low), integrity (low) and availability (none) of the vulnerable system, resulting in subsequent system confidentiality (high), integrity (high) and availability (none) impacts.(CVE-2025-35973)\n\nHardware logic contains race conditions for some 3rd Gen Intel(R) Xeon(R) Scalable Processors within Ring 3: unprivileged software may allow a denial of service. Unprivileged software adversary with an authenticated user combined with a high complexity attack may enable denial of service. This result may potentially occur via local access when attack requirements are not present with special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (none), integrity (none) and availability (high) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (high) impacts.(CVE-2026-20707)\n\nAlways-incorrect control flow implementation in some firmware for some Intel(R) Xeon(R) processors may allow an escalation of privilege. System software adversary with a privileged user combined with a high complexity attack may enable escalation of privilege. This result may potentially occur via local access when attack requirements are not present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (none), integrity (none) and availability (none) of the vulnerable system, resulting in subsequent system confidentiality (high), integrity (high) and availability (none) impacts.(CVE-2026-20713)\n\nImproper access control for some Intel(R) Processors within Ring 3: User Applications may allow an escalation of privilege. Simple hardware adversary with an authenticated user combined with a high complexity attack may enable escalation of privilege. This result may potentially occur via local access when attack requirements are present with special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (high), integrity (high) and availability (none) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts.(CVE-2026-20716)\n\nImproper handling of overlap between protected memory ranges in some microcode for some Intel(R) Processors within Ring 0: Hypervisor may allow an escalation of privilege. Authorized adversary with a privileged user combined with a low complexity attack may enable escalation of privilege. This result may potentially occur via local access when attack requirements are not present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (high), integrity (high) and availability (high) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts.(CVE-2026-20760)\n\nImproper input validation for some Intel(R) Xeon(R) processors within firmware may allow an escalation of privilege. Startup code and smm adversary with a privileged user combined with a high complexity attack may enable data alteration. This result may potentially occur via local access when attack requirements are present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (none), integrity (none) and availability (none) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (high) and availability (none) impacts.(CVE-2026-20901)\n\nExposure of sensitive information caused by incorrect data forwarding during transient execution for some Intel(R) Processors within Ring 0: Hypervisor and Kernel may allow information disclosure. System software adversary with a privileged user combined with a high complexity attack may enable data exposure. This result may potentially occur via local access when attack requirements are not present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (none), integrity (none) and availability (none) of the vulnerable system, resulting in subsequent system confidentiality (high), integrity (none) and availability (none) impacts.(CVE-2026-20917)","status":"published","published":"2026-08-20T09:54:43Z","modified":"2026-08-20T10:15:06.456557183Z","cvss":[{"version":"4.0","score":7.2,"vector":"CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","level":"high"}],"updated_at":"2026-11-02T15:52:47.217107Z"},{"id":"RHSA-2026:65147","title":"Red Hat Security Advisory: microcode_ctl security, bug fix, and enhancement update","status":"published","published":"2026-09-09T10:20:22Z","modified":"2026-10-14T10:26:25Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:N","level":"high"}],"updated_at":"2026-11-02T15:53:21.91255Z"},{"id":"RHSA-2026:67979","title":"Red Hat Security Advisory: microcode_ctl security, bug fix, and enhancement update","status":"published","published":"2026-09-17T10:18:11Z","modified":"2026-10-14T10:27:52Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:N","level":"high"}],"updated_at":"2026-11-02T15:53:22.406388Z"},{"id":"RHSA-2026:68011","title":"Red Hat Security Advisory: microcode_ctl security, bug fix, and enhancement update","status":"published","published":"2026-09-17T10:18:12Z","modified":"2026-10-14T10:27:52Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:N","level":"high"}],"updated_at":"2026-11-02T15:53:22.406388Z"},{"id":"RLSA-2026:65147","title":"Important: microcode_ctl security, bug fix, and enhancement update","description":"The microcode_ctl packages provide microcode updates for Intel and AMD processors.\n\nSecurity Fix(es):\n\n* kernel: hypervisor: Intel Processors: Privilege escalation in Ring 0 via improper value handling (CVE-2025-35973)\n\n* kernel: microcode_ctl: Intel Xeon 6 Processors: Privilege escalation via improper memory range handling in SMM (CVE-2025-31936)\n\nBug Fix(es) and Enhancement(s):\n\n* [Rocky Linux 8] Update Intel CPU microcode to the latest version (JIRA:Rocky Linux-240770)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.","status":"published","published":"2026-09-09T06:01:04.826697Z","modified":"2026-09-09T06:30:05.095723534Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:N","level":"high"}],"updated_at":"2026-11-02T15:53:26.449929Z"},{"id":"RLSA-2026:67979","title":"Important: microcode_ctl security, bug fix, and enhancement update","description":"The microcode_ctl packages provide microcode updates for Intel and AMD processors.\n\nSecurity Fix(es):\n\n* kernel: hypervisor: Intel Processors: Privilege escalation in Ring 0 via improper value handling (CVE-2025-35973)\n\n* kernel: microcode_ctl: Intel Xeon 6 Processors: Privilege escalation via improper memory range handling in SMM (CVE-2025-31936)\n\nBug Fix(es) and Enhancement(s):\n\n* [Rocky Linux 10.2.z] Update Intel CPU microcode to the latest version (JIRA:Rocky Linux-260582)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.","status":"published","published":"2026-09-17T12:10:28.765909Z","modified":"2026-09-17T12:30:02.60548136Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:N","level":"high"}],"updated_at":"2026-11-02T15:53:26.449929Z"},{"id":"RLSA-2026:68011","title":"Important: microcode_ctl security, bug fix, and enhancement update","description":"The microcode_ctl packages provide microcode updates for Intel and AMD processors.\n\nSecurity Fix(es):\n\n* kernel: hypervisor: Intel Processors: Privilege escalation in Ring 0 via improper value handling (CVE-2025-35973)\n\n* kernel: microcode_ctl: Intel Xeon 6 Processors: Privilege escalation via improper memory range handling in SMM (CVE-2025-31936)\n\nBug Fix(es) and Enhancement(s):\n\n* [Rocky Linux 9.8.z] Update Intel CPU microcode to the latest version (JIRA:Rocky Linux-260496)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.","status":"published","published":"2026-09-17T06:07:16.237406Z","modified":"2026-09-17T06:30:02.572371129Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:N","level":"high"}],"updated_at":"2026-11-02T15:53:26.449929Z"},{"id":"UBUNTU-CVE-2025-35973","description":"Improper handling of values for some Intel(R) Processors within Ring 0: Kernel, Hypervisor and Bare Metal OS may allow an escalation of privilege. Authorized adversary with a privileged user combined with a high complexity attack may enable escalation of privilege. This result may potentially occur via local access when attack requirements are present with special internal knowledge and require no user interaction. The potential vulnerability may impact the confidentiality (low), integrity (low) and availability (none) of the vulnerable system, resulting in subsequent system confidentiality (high), integrity (high) and availability (none) impacts.","status":"published","published":"2026-08-11T17:17:00Z","modified":"2026-10-17T12:57:27.531100697Z","cvss":[{"version":"4.0","score":4.5,"vector":"CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:N/VC:L/VI:L/VA:N/SC:H/SI:H/SA:N","level":"medium"}],"updated_at":"2026-11-02T16:55:28.829873Z"},{"id":"ALSA-2026:65147","title":"Important: microcode_ctl security, bug fix, and enhancement update","description":"The microcode_ctl packages provide microcode updates for Intel and AMD processors.  \n\nSecurity Fix(es):  \n\n  * kernel: hypervisor: Intel Processors: Privilege escalation in Ring 0 via improper value handling (CVE-2025-35973)\n  * kernel: microcode_ctl: Intel Xeon 6 Processors: Privilege escalation via improper memory range handling in SMM (CVE-2025-31936)\n\n\nBug Fix(es) and Enhancement(s):  \n\n  * [AlmaLinux 8] Update Intel CPU microcode to the latest version (JIRA:AlmaLinux-240770)\n\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n","status":"published","published":"2026-09-08T00:00:00Z","modified":"2026-10-29T11:02:29.000632465Z","updated_at":"2026-11-02T15:27:55.200553Z"},{"id":"ALSA-2026:67979","title":"Important: microcode_ctl security, bug fix, and enhancement update","description":"The microcode_ctl packages provide microcode updates for Intel and AMD processors.  \n\nSecurity Fix(es):  \n\n  * kernel: hypervisor: Intel Processors: Privilege escalation in Ring 0 via improper value handling (CVE-2025-35973)\n  * kernel: microcode_ctl: Intel Xeon 6 Processors: Privilege escalation via improper memory range handling in SMM (CVE-2025-31936)\n\n\nBug Fix(es) and Enhancement(s):  \n\n  * [AlmaLinux 10.2.z] Update Intel CPU microcode to the latest version (JIRA:AlmaLinux-260582)\n\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n","status":"published","published":"2026-09-16T00:00:00Z","modified":"2026-10-29T11:30:42.963879455Z","updated_at":"2026-11-02T15:27:55.200553Z"},{"id":"ALSA-2026:68011","title":"Important: microcode_ctl security, bug fix, and enhancement update","description":"The microcode_ctl packages provide microcode updates for Intel and AMD processors.  \n\nSecurity Fix(es):  \n\n  * kernel: hypervisor: Intel Processors: Privilege escalation in Ring 0 via improper value handling (CVE-2025-35973)\n  * kernel: microcode_ctl: Intel Xeon 6 Processors: Privilege escalation via improper memory range handling in SMM (CVE-2025-31936)\n\n\nBug Fix(es) and Enhancement(s):  \n\n  * [AlmaLinux 9.8.z] Update Intel CPU microcode to the latest version (JIRA:AlmaLinux-260496)\n\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n","status":"published","published":"2026-09-16T00:00:00Z","modified":"2026-10-29T11:32:32.075707441Z","updated_at":"2026-11-02T15:27:55.200553Z"},{"id":"BELL-CVE-2025-35973","status":"published","published":"2026-08-14T06:04:00.846402Z","modified":"2026-09-06T07:15:17.041118241Z","updated_at":"2026-11-02T15:28:21.741325Z"},{"id":"CLSA-2026-1789116715","title":"microcode_ctl: Fix of CVE-2025-35973","description":"- Update Intel CPU microcode to 20260812 release, addresses\n  CVE-2025-35973 (INTEL-SA-01428); the release also carries INTEL-SA-01379,\n  -01404, -01423, -01435, -01441, -01442 and -01443. 20260812 withdraws the\n  06-aa-04 revision 0x2a that 20260811 shipped, so MTL C0 (cpuid:A06A4) gets\n  0x28:\n  - Addition of cpuid:806F8/0x10 microcode at revision 0x2c000435;\n  - Addition of cpuid:806F8/0x87 microcode at revision 0x2b000685;\n  - Addition of cpuid:90672/0x07 microcode at revision 0x3e;\n  - Addition of cpuid:906A3/0x80 microcode at revision 0x43b;\n  - Addition of cpuid:B0671/0x36 microcode at revision 0x137;\n  - Addition of cpuid:B0674/0x36 microcode at revision 0x137;\n  - Addition of cpuid:B06A2/0xe0 microcode at revision 0x6134;\n  - Addition of cpuid:C0662/0x82 microcode at revision 0x122;\n  - Addition of cpuid:C06C1/0x94 microcode at revision 0x11c;\n  - Addition of cpuid:C06C2/0x94 microcode at revision 0x11c;\n  - Addition of cpuid:C06C3/0x94 microcode at revision 0x11c;\n  - Addition of cpuid:C06F2/0x87 microcode at revision 0x210002f4;\n  - Addition of cpuid:D0650/0xc0 microcode at revision 0xc;\n  - Addition of cpuid:D0651/0xc0 microcode at revision 0xc;\n  - Addition of cpuid:D0670/0x36 microcode at revision 0x137;\n  - Addition of cpuid:E0652/0x94 microcode at revision 0x11c;\n  - Removal of cpuid:806F8/0x10 microcode at revision 0x2c000410;\n  - Removal of cpuid:806F8/0x87 microcode at revision 0x2b000650;\n  - Removal of cpuid:90672/0x07 microcode at revision 0x3d;\n  - Removal of cpuid:906A3/0x80 microcode at revision 0x43a;\n  - Removal of cpuid:B0671/0x32 microcode at revision 0x132;\n  - Removal of cpuid:B0674/0x32 microcode at revision 0x132;\n  - Removal of cpuid:B06A2/0xe0 microcode at revision 0x6133;\n  - Removal of cpuid:C0662/0x82 microcode at revision 0x11a;\n  - Removal of cpuid:C06F2/0x87 microcode at revision 0x21000291;\n  - Removal of cpuid:C06F2/0x87 microcode at revision 0x210002c0;\n  - Update of cpuid:606A6/0x87 (ICX-SP D0) microcode from revision 0xd000410\n    up to 0xd000433;\n  - Update of cpuid:606C1/0x10 microcode from revision 0x10002e0 up to\n    0x1000301;\n  - Update of cpuid:706E5/0x80 (ICL-U/Y D1) microcode from revision 0xca up to\n    0xce;\n  - Update of cpuid:806C1/0x80 (TGL-UP3/UP4 B1) microcode from revision 0xbc\n    up to 0xbe;\n  - Update of cpuid:806C2/0xc2 (TGL-R C0) microcode from revision 0x3c up to\n    0x3e;\n  - Update of cpuid:806D1/0xc2 (TGL-H R0) microcode from revision 0x56 up to\n    0x58;\n  - Update of cpuid:806F4/0x10 microcode from revision 0x2c000410 up to\n    0x2c000435;\n  - Update of cpuid:806F4/0x87 microcode from revision 0x2b000650 up to\n    0x2b000685;\n  - Update of cpuid:806F5/0x10 microcode from revision 0x2c000410 up to\n    0x2c000435;\n  - Update of cpuid:806F5/0x87 microcode from revision 0x2b000650 up to\n    0x2b000685;\n  - Update of cpuid:806F6/0x10 microcode from revision 0x2c000410 up to\n    0x2c000435;\n  - Update of cpuid:806F6/0x87 microcode from revision 0x2b000650 up to\n    0x2b000685;\n  - Update of cpuid:806F7/0x87 microcode from revision 0x2b000650 up to\n    0x2b000685;\n  - Update of cpuid:90675/0x07 microcode from revision 0x3d up to 0x3e;\n  - Update of cpuid:906A4/0x40 microcode from revision 0xb up to 0xc;\n  - Update of cpuid:906A4/0x80 microcode from revision 0x43a up to 0x43b;\n  - Update of cpuid:A0671/0x02 (RKL-S B0) microcode from revision 0x64 up to\n    0x66;\n  - Update of cpuid:A06A4/0xe6 microcode from revision 0x25 up to 0x28;\n  - Update of cpuid:A06D1/0x20 microcode from revision 0xa000124 up to\n    0xa000151;\n  - Update of cpuid:A06D1/0x95 microcode from revision 0x10003f0 up to\n    0x1000434;\n  - Update of cpuid:A06E1/0x97 microcode from revision 0x1000273 up to\n    0x1000309;\n  - Update of cpuid:A06F3/0x01 microcode from revision 0x3000382 up to\n    0x30003b2;\n  - Update of cpuid:B0650/0x80 microcode from revision 0xa up to 0xe;\n  - Update of cpuid:B06A3/0xe0 microcode from revision 0x6133 up to 0x6134;\n  - Update of cpuid:B06A8/0xe0 microcode from revision 0x6133 up to 0x6134;\n  - Update of cpuid:B06D1/0x80 microcode from revision 0x125 up to 0x128;\n  - Update of cpuid:B06E0/0x19 microcode from revision 0x1e up to 0x21;\n  - Update of cpuid:B06F2/0x07 microcode from revision 0x3d up to 0x3e;\n  - Update of cpuid:B06F5/0x07 microcode from revision 0x3d up to 0x3e;\n  - Update of cpuid:B06F6/0x07 microcode from revision 0x3d up to 0x3e;\n  - Update of cpuid:B06F7/0x07 microcode from revision 0x3d up to 0x3e;\n  - Update of cpuid:C0652/0x82 microcode from revision 0x11a up to 0x122;\n  - Update of cpuid:C0664/0x82 microcode from revision 0x11a up to 0x122;\n  - Update of cpuid:C06A2/0x82 microcode from revision 0x11a up to 0x122;\n  - Update of cpuid:C06F1/0x87 microcode from revision 0x21000291 up to\n    0x210002f4;\n  - Update of cpuid:C06F1/0x87 microcode from revision 0x210002c0 up to\n    0x210002f4;\n- Keep cpuid:50656 (CLX-SP B0) and cpuid:C06F1 (EMR-SP A0) microcode that\n  upstream dropped, as microcode_ctl-4:20260812-1.el8_10 does.","status":"published","published":"2026-09-11T08:52:06Z","modified":"2026-10-26T09:31:51.625379694Z","updated_at":"2026-11-02T15:43:47.938828Z"},{"id":"CLSA-2026-1789116898","title":"microcode_ctl: Fix of CVE-2025-35973","description":"- Update Intel CPU microcode to 20260812 release, addresses\n  CVE-2025-35973 (INTEL-SA-01428); the release also carries INTEL-SA-01379,\n  -01404, -01423, -01435, -01441, -01442 and -01443. 20260812 withdraws the\n  06-aa-04 revision 0x2a that 20260811 shipped, so MTL C0 (cpuid:A06A4) gets\n  0x28:\n  - Addition of cpuid:806F8/0x10 microcode at revision 0x2c000435;\n  - Addition of cpuid:806F8/0x87 microcode at revision 0x2b000685;\n  - Addition of cpuid:90672/0x07 microcode at revision 0x3e;\n  - Addition of cpuid:906A3/0x80 microcode at revision 0x43b;\n  - Addition of cpuid:B0671/0x36 microcode at revision 0x137;\n  - Addition of cpuid:B0674/0x36 microcode at revision 0x137;\n  - Addition of cpuid:B06A2/0xe0 microcode at revision 0x6134;\n  - Addition of cpuid:C0662/0x82 microcode at revision 0x122;\n  - Addition of cpuid:C06C1/0x94 microcode at revision 0x11c;\n  - Addition of cpuid:C06C2/0x94 microcode at revision 0x11c;\n  - Addition of cpuid:C06C3/0x94 microcode at revision 0x11c;\n  - Addition of cpuid:C06F2/0x87 microcode at revision 0x210002f4;\n  - Addition of cpuid:D0650/0xc0 microcode at revision 0xc;\n  - Addition of cpuid:D0651/0xc0 microcode at revision 0xc;\n  - Addition of cpuid:D0670/0x36 microcode at revision 0x137;\n  - Addition of cpuid:E0652/0x94 microcode at revision 0x11c;\n  - Removal of cpuid:806F8/0x10 microcode at revision 0x2c000410;\n  - Removal of cpuid:806F8/0x87 microcode at revision 0x2b000650;\n  - Removal of cpuid:90672/0x07 microcode at revision 0x3d;\n  - Removal of cpuid:906A3/0x80 microcode at revision 0x43a;\n  - Removal of cpuid:B0671/0x32 microcode at revision 0x132;\n  - Removal of cpuid:B0674/0x32 microcode at revision 0x132;\n  - Removal of cpuid:B06A2/0xe0 microcode at revision 0x6133;\n  - Removal of cpuid:C0662/0x82 microcode at revision 0x11a;\n  - Removal of cpuid:C06F2/0x87 microcode at revision 0x21000291;\n  - Removal of cpuid:C06F2/0x87 microcode at revision 0x210002c0;\n  - Update of cpuid:606A6/0x87 (ICX-SP D0) microcode from revision 0xd000410\n    up to 0xd000433;\n  - Update of cpuid:606C1/0x10 microcode from revision 0x10002e0 up to\n    0x1000301;\n  - Update of cpuid:706E5/0x80 (ICL-U/Y D1) microcode from revision 0xca up to\n    0xce;\n  - Update of cpuid:806C1/0x80 (TGL-UP3/UP4 B1) microcode from revision 0xbc\n    up to 0xbe;\n  - Update of cpuid:806C2/0xc2 (TGL-R C0) microcode from revision 0x3c up to\n    0x3e;\n  - Update of cpuid:806D1/0xc2 (TGL-H R0) microcode from revision 0x56 up to\n    0x58;\n  - Update of cpuid:806F4/0x10 microcode from revision 0x2c000410 up to\n    0x2c000435;\n  - Update of cpuid:806F4/0x87 microcode from revision 0x2b000650 up to\n    0x2b000685;\n  - Update of cpuid:806F5/0x10 microcode from revision 0x2c000410 up to\n    0x2c000435;\n  - Update of cpuid:806F5/0x87 microcode from revision 0x2b000650 up to\n    0x2b000685;\n  - Update of cpuid:806F6/0x10 microcode from revision 0x2c000410 up to\n    0x2c000435;\n  - Update of cpuid:806F6/0x87 microcode from revision 0x2b000650 up to\n    0x2b000685;\n  - Update of cpuid:806F7/0x87 microcode from revision 0x2b000650 up to\n    0x2b000685;\n  - Update of cpuid:90675/0x07 microcode from revision 0x3d up to 0x3e;\n  - Update of cpuid:906A4/0x40 microcode from revision 0xb up to 0xc;\n  - Update of cpuid:906A4/0x80 microcode from revision 0x43a up to 0x43b;\n  - Update of cpuid:A0671/0x02 (RKL-S B0) microcode from revision 0x64 up to\n    0x66;\n  - Update of cpuid:A06A4/0xe6 microcode from revision 0x25 up to 0x28;\n  - Update of cpuid:A06D1/0x20 microcode from revision 0xa000124 up to\n    0xa000151;\n  - Update of cpuid:A06D1/0x95 microcode from revision 0x10003f0 up to\n    0x1000434;\n  - Update of cpuid:A06E1/0x97 microcode from revision 0x1000273 up to\n    0x1000309;\n  - Update of cpuid:A06F3/0x01 microcode from revision 0x3000382 up to\n    0x30003b2;\n  - Update of cpuid:B0650/0x80 microcode from revision 0xa up to 0xe;\n  - Update of cpuid:B06A3/0xe0 microcode from revision 0x6133 up to 0x6134;\n  - Update of cpuid:B06A8/0xe0 microcode from revision 0x6133 up to 0x6134;\n  - Update of cpuid:B06D1/0x80 microcode from revision 0x125 up to 0x128;\n  - Update of cpuid:B06E0/0x19 microcode from revision 0x1e up to 0x21;\n  - Update of cpuid:B06F2/0x07 microcode from revision 0x3d up to 0x3e;\n  - Update of cpuid:B06F5/0x07 microcode from revision 0x3d up to 0x3e;\n  - Update of cpuid:B06F6/0x07 microcode from revision 0x3d up to 0x3e;\n  - Update of cpuid:B06F7/0x07 microcode from revision 0x3d up to 0x3e;\n  - Update of cpuid:C0652/0x82 microcode from revision 0x11a up to 0x122;\n  - Update of cpuid:C0664/0x82 microcode from revision 0x11a up to 0x122;\n  - Update of cpuid:C06A2/0x82 microcode from revision 0x11a up to 0x122;\n  - Update of cpuid:C06F1/0x87 microcode from revision 0x21000291 up to\n    0x210002f4;\n  - Update of cpuid:C06F1/0x87 microcode from revision 0x210002c0 up to\n    0x210002f4;\n- Keep cpuid:50656 (CLX-SP B0) and cpuid:C06F1 (EMR-SP A0) microcode that\n  upstream dropped, as microcode_ctl-4:20260812-1.el8_10 does.","status":"published","published":"2026-09-11T08:55:09Z","modified":"2026-10-26T09:31:50.415819967Z","updated_at":"2026-11-02T15:43:47.938828Z"},{"id":"CLSA-2026-1789117244","title":"microcode_ctl: Fix of CVE-2025-35973","description":"- Update Intel CPU microcode to 20260812 release, addresses\n  CVE-2025-35973 (INTEL-SA-01428); the release also carries INTEL-SA-01379,\n  -01404, -01423, -01435, -01441, -01442 and -01443. 20260812 withdraws the\n  06-aa-04 revision 0x2a that 20260811 shipped, so MTL C0 (cpuid:A06A4) gets\n  0x28:\n  - Addition of cpuid:806F8/0x10 microcode at revision 0x2c000435;\n  - Addition of cpuid:806F8/0x87 microcode at revision 0x2b000685;\n  - Addition of cpuid:90672/0x07 microcode at revision 0x3e;\n  - Addition of cpuid:906A3/0x80 microcode at revision 0x43b;\n  - Addition of cpuid:B0671/0x36 microcode at revision 0x137;\n  - Addition of cpuid:B0674/0x36 microcode at revision 0x137;\n  - Addition of cpuid:B06A2/0xe0 microcode at revision 0x6134;\n  - Addition of cpuid:C0662/0x82 microcode at revision 0x122;\n  - Addition of cpuid:C06C1/0x94 microcode at revision 0x11c;\n  - Addition of cpuid:C06C2/0x94 microcode at revision 0x11c;\n  - Addition of cpuid:C06C3/0x94 microcode at revision 0x11c;\n  - Addition of cpuid:C06F2/0x87 microcode at revision 0x210002f4;\n  - Addition of cpuid:D0650/0xc0 microcode at revision 0xc;\n  - Addition of cpuid:D0651/0xc0 microcode at revision 0xc;\n  - Addition of cpuid:D0670/0x36 microcode at revision 0x137;\n  - Addition of cpuid:E0652/0x94 microcode at revision 0x11c;\n  - Removal of cpuid:806F8/0x10 microcode at revision 0x2c000410;\n  - Removal of cpuid:806F8/0x87 microcode at revision 0x2b000650;\n  - Removal of cpuid:90672/0x07 microcode at revision 0x3d;\n  - Removal of cpuid:906A3/0x80 microcode at revision 0x43a;\n  - Removal of cpuid:B0671/0x32 microcode at revision 0x132;\n  - Removal of cpuid:B0674/0x32 microcode at revision 0x132;\n  - Removal of cpuid:B06A2/0xe0 microcode at revision 0x6133;\n  - Removal of cpuid:C0662/0x82 microcode at revision 0x11a;\n  - Removal of cpuid:C06F2/0x87 microcode at revision 0x21000291;\n  - Removal of cpuid:C06F2/0x87 microcode at revision 0x210002c0;\n  - Update of cpuid:606A6/0x87 (ICX-SP D0) microcode from revision 0xd000410\n    up to 0xd000433;\n  - Update of cpuid:606C1/0x10 microcode from revision 0x10002e0 up to\n    0x1000301;\n  - Update of cpuid:706E5/0x80 (ICL-U/Y D1) microcode from revision 0xca up to\n    0xce;\n  - Update of cpuid:806C1/0x80 (TGL-UP3/UP4 B1) microcode from revision 0xbc\n    up to 0xbe;\n  - Update of cpuid:806C2/0xc2 (TGL-R C0) microcode from revision 0x3c up to\n    0x3e;\n  - Update of cpuid:806D1/0xc2 (TGL-H R0) microcode from revision 0x56 up to\n    0x58;\n  - Update of cpuid:806F4/0x10 microcode from revision 0x2c000410 up to\n    0x2c000435;\n  - Update of cpuid:806F4/0x87 microcode from revision 0x2b000650 up to\n    0x2b000685;\n  - Update of cpuid:806F5/0x10 microcode from revision 0x2c000410 up to\n    0x2c000435;\n  - Update of cpuid:806F5/0x87 microcode from revision 0x2b000650 up to\n    0x2b000685;\n  - Update of cpuid:806F6/0x10 microcode from revision 0x2c000410 up to\n    0x2c000435;\n  - Update of cpuid:806F6/0x87 microcode from revision 0x2b000650 up to\n    0x2b000685;\n  - Update of cpuid:806F7/0x87 microcode from revision 0x2b000650 up to\n    0x2b000685;\n  - Update of cpuid:90675/0x07 microcode from revision 0x3d up to 0x3e;\n  - Update of cpuid:906A4/0x40 microcode from revision 0xb up to 0xc;\n  - Update of cpuid:906A4/0x80 microcode from revision 0x43a up to 0x43b;\n  - Update of cpuid:A0671/0x02 (RKL-S B0) microcode from revision 0x64 up to\n    0x66;\n  - Update of cpuid:A06A4/0xe6 microcode from revision 0x25 up to 0x28;\n  - Update of cpuid:A06D1/0x20 microcode from revision 0xa000124 up to\n    0xa000151;\n  - Update of cpuid:A06D1/0x95 microcode from revision 0x10003f0 up to\n    0x1000434;\n  - Update of cpuid:A06E1/0x97 microcode from revision 0x1000273 up to\n    0x1000309;\n  - Update of cpuid:A06F3/0x01 microcode from revision 0x3000382 up to\n    0x30003b2;\n  - Update of cpuid:B0650/0x80 microcode from revision 0xa up to 0xe;\n  - Update of cpuid:B06A3/0xe0 microcode from revision 0x6133 up to 0x6134;\n  - Update of cpuid:B06A8/0xe0 microcode from revision 0x6133 up to 0x6134;\n  - Update of cpuid:B06D1/0x80 microcode from revision 0x125 up to 0x128;\n  - Update of cpuid:B06E0/0x19 microcode from revision 0x1e up to 0x21;\n  - Update of cpuid:B06F2/0x07 microcode from revision 0x3d up to 0x3e;\n  - Update of cpuid:B06F5/0x07 microcode from revision 0x3d up to 0x3e;\n  - Update of cpuid:B06F6/0x07 microcode from revision 0x3d up to 0x3e;\n  - Update of cpuid:B06F7/0x07 microcode from revision 0x3d up to 0x3e;\n  - Update of cpuid:C0652/0x82 microcode from revision 0x11a up to 0x122;\n  - Update of cpuid:C0664/0x82 microcode from revision 0x11a up to 0x122;\n  - Update of cpuid:C06A2/0x82 microcode from revision 0x11a up to 0x122;\n  - Update of cpuid:C06F1/0x87 microcode from revision 0x21000291 up to\n    0x210002f4;\n  - Update of cpuid:C06F1/0x87 microcode from revision 0x210002c0 up to\n    0x210002f4;\n- Keep cpuid:50656 (CLX-SP B0) and cpuid:C06F1 (EMR-SP A0) microcode that\n  upstream dropped, as microcode_ctl-4:20260812-1.el8_10 does.","status":"published","published":"2026-09-11T09:00:54Z","modified":"2026-10-26T09:30:55.055928506Z","updated_at":"2026-11-02T15:43:47.938828Z"},{"id":"CLSA-2026-1790091171","title":"microcode_ctl: Fix of 6 CVEs","description":"- CVE-2025-35973: update Intel CPU microcode data files to release 20260812,\n  which carries the INTEL-SA-01428 mitigation","status":"published","published":"2026-09-22T15:33:12Z","modified":"2026-10-26T09:31:35.719633578Z","updated_at":"2026-11-02T15:43:48.28229Z"},{"id":"CLSA-2026-1791485704","title":"microcode_ctl: Fix of CVE-2025-35973","description":"- CVE-2025-35973: update Intel CPU microcode data files to release 20260925,\n  which restores the Meteor Lake 06-aa-04 update (revision 0x28 -\u003e 0x2b) that\n  release 20260812 withdrew, completing the INTEL-SA-01428 mitigation for that\n  family; the other affected families were already covered by 20260812","status":"published","published":"2026-10-08T18:55:15Z","modified":"2026-10-26T09:30:53.566851873Z","updated_at":"2026-11-02T15:43:49.016976Z"},{"id":"MGASA-2026-0374","title":"Updated microcode packages fix security vulnerabilities","description":"A potential security vulnerability for some Intel® Xeon® 6 processor\nwith Intel® Trust Domain Extensions (Intel® TDX) may allow escalation of\nprivilege. (CVE-2025-31936)\nA potential security vulnerability in some Intel® Xeon® 6 processor with\nIntel® Trust Domain Extensions (Intel® TDX) may allow information\ndisclosure. (CVE-2025-31938)\nA potential security vulnerability in some Intel® Processors may allow\ninformation disclosure. (CVE-2026-20917)\nA potential security vulnerability in some Intel® Processors may allow\nescalation of privilege. (CVE-2025-35973)\nA potential security vulnerability in some Intel® Processors may allow\nescalation of privilege. (CVE-2026-20716)\nA potential security vulnerability in some Intel® Processors may allow\ndenial of service. (CVE-2026-20760)\nPotential security vulnerabilities in some Intel® Xeon® Processors may\nallow escalation of privilege. (CVE-2026-20713)\nA potential security vulnerability in some 3rd Gen Intel® Xeon® Scalable\nProcessors may allow denial of service. (CVE-2026-20707)\n","status":"published","published":"2026-09-04T17:53:22Z","modified":"2026-09-04T18:11:26.125420131Z","updated_at":"2026-11-02T15:49:43.795591Z"},{"id":"openSUSE-SU-2026:11599-1","title":"ucode-intel-20260812-1.1 on GA media","description":"These are all security issues fixed in the ucode-intel-20260812-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2026-08-25T00:00:00Z","modified":"2026-08-26T10:15:04.36034583Z","updated_at":"2026-11-02T16:58:39.516824Z"},{"id":"openSUSE-SU-2026:21736-1","title":"Security update for ucode-intel","description":"This update for ucode-intel fixes the following issues:\n\n- Intel CPU Microcode was updated to the 20260812 release (bsc#1274785)\n  - Removed MTL/06-aa-04/c0 due to functional issues observed when loading the MCU in some platforms.\n- Intel CPU Microcode was updated to the 20260811 release (bsc#1274785)\n  - Security updates for INTEL-SA-01379 / CVE-2025-31936\n  - Security updates for INTEL-SA-01404 / CVE-2025-31938\n  - Security updates for INTEL-SA-01423 / CVE-2026-20917\n  - Security updates for INTEL-SA-01428 / CVE-2025-35973\n  - Security updates for INTEL-SA-01435 / CVE-2026-20716\n  - Security updates for INTEL-SA-01441 / CVE-2026-20760\n  - Security updates for INTEL-SA-01442 / CVE-2026-20713 / CVE-2026-20901\n  - Security updates for INTEL-SA-01443 / CVE-2026-20707\n  - Update for functional issues.\n\n- Intel CPU Microcode was updated to the 20260512 release (bsc#1265189)\n  - CVE-2025-35979: Security updates for INTEL-SA-01420\n  - https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-01420.html\n  - Update for various functional issues.\n\n    ##### New Platforms\n    | Processor | Stepping | F-M-S/PI | Old Ver | New Ver | Products\n    |:---------------|:---------|:------------|:---------|:---------|:---------\n    | PTL 404 | A1 | 06-cc-03/90 | | 0000011b | Intel Core Ultra Processor (Series 3)\n    | PTL-H 484/12Xe | A0/B0 | 06-cc-02/90 | | 0000011b | Intel Core Ultra Processor (Series 3)\n    ##### Updated Platforms\n    | Processor | Stepping | F-M-S/PI | Old Ver | New Ver | Products\n    |:---------------|:---------|:------------|:---------|:---------|:---------\n    | ARL-H | A1 | 06-c5-02/82 | 0000011b | 00000121 | Core Ultra Processor (Series 2)\n    | ARL-S/HX (8P) | B0 | 06-c6-02/82 | 0000011b | 00000121 | Core Ultra Processor (Series 2)\n    | EMR-SP | A1 | 06-cf-02/87 | 210002d3 | 210002e0 | Xeon Scalable Gen5\n    | GNR-AP/SP | Bx/Hx/Lx | 06-ad-01/95 | 01000405 | 01000423 | Xeon 6900/6700/6500 Series Processors with P-Cores\n    | GNR-D | B0/B1 | 06-ae-01/97 | 01000303 | 01000307 | Xeon 6700P-B/6500P-B Series SoC with P-Cores\n    | GNR-SP R1S | Bx/Hx/Lx | 06-ad-01/20 | 0a000133 | 0a000142 | Xeon 6700/6500-Series Processors with P-Cores\n    | LNL | B0 | 06-bd-01/80 | 00000125 | 00000126 | Core Ultra 200 V Series Processor\n    | SPR-SP | E4/S2 | 06-8f-07/87 | 2b000661 | 2b000670 | Xeon Scalable Gen4\n    | SPR-SP | E5/S3 | 06-8f-08/87 | 2b000661 | 2b000670 | Xeon Scalable Gen4\n    | SRF-AP/SP | C0 | 06-af-03/01 | 03000382 | 030003a3 | Xeon 6900/6700-Series Processors with E-Cores\n\n- Update to microcode-20260227:\n  * Update for functional issues. Refer to Intel� Xeon� 6700P-B/6500P-B-Series SoC with P-Cores for details.\n\n    ##### Updated Platforms\n    | Processor | Stepping | F-M-S/PI | Old Ver | New Ver | Products\n    |:---------------|:---------|:------------|:---------|:---------|:---------\n    | GNR-D | B0/B1 | 06-ae-01/97 | 010002f3 | 01000303 | Xeon 6700P-B/6500P-B Series SoC with P-Cores\n","status":"published","published":"2026-09-02T09:34:17Z","modified":"2026-09-09T18:23:13.471281911Z","updated_at":"2026-11-02T16:58:42.426393Z"},{"id":"SUSE-SU-2026:23449-1","title":"Security update for ucode-intel","description":"This update for ucode-intel fixes the following issues:\n\n- Intel CPU Microcode was updated to the 20260812 release (bsc#1274785)\n  - Removed MTL/06-aa-04/c0 due to functional issues observed when loading the MCU in some platforms.\n- Intel CPU Microcode was updated to the 20260811 release (bsc#1274785)\n  - Security updates for INTEL-SA-01379 / CVE-2025-31936\n  - Security updates for INTEL-SA-01404 / CVE-2025-31938\n  - Security updates for INTEL-SA-01423 / CVE-2026-20917\n  - Security updates for INTEL-SA-01428 / CVE-2025-35973\n  - Security updates for INTEL-SA-01435 / CVE-2026-20716\n  - Security updates for INTEL-SA-01441 / CVE-2026-20760\n  - Security updates for INTEL-SA-01442 / CVE-2026-20713 / CVE-2026-20901\n  - Security updates for INTEL-SA-01443 / CVE-2026-20707\n  - Update for functional issues.\n","status":"published","published":"2026-09-03T08:09:32Z","modified":"2026-09-14T18:23:16.688842357Z","updated_at":"2026-11-02T15:54:03.503431Z"},{"id":"SUSE-SU-2026:23459-1","title":"Security update for ucode-intel","description":"This update for ucode-intel fixes the following issues:\n\n- Intel CPU Microcode was updated to the 20260812 release (bsc#1274785)\n  - Removed MTL/06-aa-04/c0 due to functional issues observed when loading the MCU in some platforms.\n- Intel CPU Microcode was updated to the 20260811 release (bsc#1274785)\n  - Security updates for INTEL-SA-01379 / CVE-2025-31936\n  - Security updates for INTEL-SA-01404 / CVE-2025-31938\n  - Security updates for INTEL-SA-01423 / CVE-2026-20917\n  - Security updates for INTEL-SA-01428 / CVE-2025-35973\n  - Security updates for INTEL-SA-01435 / CVE-2026-20716\n  - Security updates for INTEL-SA-01441 / CVE-2026-20760\n  - Security updates for INTEL-SA-01442 / CVE-2026-20713 / CVE-2026-20901\n  - Security updates for INTEL-SA-01443 / CVE-2026-20707\n  - Update for functional issues.\n\n- Intel CPU Microcode was updated to the 20260512 release (bsc#1265189)\n  - CVE-2025-35979: Security updates for INTEL-SA-01420\n  - https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-01420.html\n  - Update for various functional issues.\n\n    ##### New Platforms\n    | Processor | Stepping | F-M-S/PI | Old Ver | New Ver | Products\n    |:---------------|:---------|:------------|:---------|:---------|:---------\n    | PTL 404 | A1 | 06-cc-03/90 | | 0000011b | Intel Core Ultra Processor (Series 3)\n    | PTL-H 484/12Xe | A0/B0 | 06-cc-02/90 | | 0000011b | Intel Core Ultra Processor (Series 3)\n    ##### Updated Platforms\n    | Processor | Stepping | F-M-S/PI | Old Ver | New Ver | Products\n    |:---------------|:---------|:------------|:---------|:---------|:---------\n    | ARL-H | A1 | 06-c5-02/82 | 0000011b | 00000121 | Core Ultra Processor (Series 2)\n    | ARL-S/HX (8P) | B0 | 06-c6-02/82 | 0000011b | 00000121 | Core Ultra Processor (Series 2)\n    | EMR-SP | A1 | 06-cf-02/87 | 210002d3 | 210002e0 | Xeon Scalable Gen5\n    | GNR-AP/SP | Bx/Hx/Lx | 06-ad-01/95 | 01000405 | 01000423 | Xeon 6900/6700/6500 Series Processors with P-Cores\n    | GNR-D | B0/B1 | 06-ae-01/97 | 01000303 | 01000307 | Xeon 6700P-B/6500P-B Series SoC with P-Cores\n    | GNR-SP R1S | Bx/Hx/Lx | 06-ad-01/20 | 0a000133 | 0a000142 | Xeon 6700/6500-Series Processors with P-Cores\n    | LNL | B0 | 06-bd-01/80 | 00000125 | 00000126 | Core Ultra 200 V Series Processor\n    | SPR-SP | E4/S2 | 06-8f-07/87 | 2b000661 | 2b000670 | Xeon Scalable Gen4\n    | SPR-SP | E5/S3 | 06-8f-08/87 | 2b000661 | 2b000670 | Xeon Scalable Gen4\n    | SRF-AP/SP | C0 | 06-af-03/01 | 03000382 | 030003a3 | Xeon 6900/6700-Series Processors with E-Cores\n\n- Update to microcode-20260227:\n  * Update for functional issues. Refer to Intel Xeon 6700P-B/6500P-B-Series SoC with P-Cores for details.\n\n    ##### Updated Platforms\n    | Processor | Stepping | F-M-S/PI | Old Ver | New Ver | Products\n    |:---------------|:---------|:------------|:---------|:---------|:---------\n    | GNR-D | B0/B1 | 06-ae-01/97 | 010002f3 | 01000303 | Xeon 6700P-B/6500P-B Series SoC with P-Cores\n","status":"published","published":"2026-09-21T08:31:07Z","modified":"2026-09-22T18:23:08.629920057Z","updated_at":"2026-11-02T15:54:03.503431Z"},{"id":"SUSE-SU-2026:23539-1","title":"Security update for ucode-intel","description":"This update for ucode-intel fixes the following issues:\n\n- Intel CPU Microcode was updated to the 20260812 release (bsc#1274785)\n  - Removed MTL/06-aa-04/c0 due to functional issues observed when loading the MCU in some platforms.\n- Intel CPU Microcode was updated to the 20260811 release (bsc#1274785)\n  - Security updates for INTEL-SA-01379 / CVE-2025-31936\n  - Security updates for INTEL-SA-01404 / CVE-2025-31938\n  - Security updates for INTEL-SA-01423 / CVE-2026-20917\n  - Security updates for INTEL-SA-01428 / CVE-2025-35973\n  - Security updates for INTEL-SA-01435 / CVE-2026-20716\n  - Security updates for INTEL-SA-01441 / CVE-2026-20760\n  - Security updates for INTEL-SA-01442 / CVE-2026-20713 / CVE-2026-20901\n  - Security updates for INTEL-SA-01443 / CVE-2026-20707\n  - Update for functional issues.\n","status":"published","published":"2026-09-03T09:05:53Z","modified":"2026-09-15T18:23:10.886770521Z","updated_at":"2026-11-02T15:54:03.991985Z"},{"id":"SUSE-SU-2026:23602-1","title":"Security update for ucode-intel","description":"This update for ucode-intel fixes the following issues:\n\n- Intel CPU Microcode was updated to the 20260812 release (bsc#1274785)\n  - Removed MTL/06-aa-04/c0 due to functional issues observed when loading the MCU in some platforms.\n- Intel CPU Microcode was updated to the 20260811 release (bsc#1274785)\n  - Security updates for INTEL-SA-01379 / CVE-2025-31936\n  - Security updates for INTEL-SA-01404 / CVE-2025-31938\n  - Security updates for INTEL-SA-01423 / CVE-2026-20917\n  - Security updates for INTEL-SA-01428 / CVE-2025-35973\n  - Security updates for INTEL-SA-01435 / CVE-2026-20716\n  - Security updates for INTEL-SA-01441 / CVE-2026-20760\n  - Security updates for INTEL-SA-01442 / CVE-2026-20713 / CVE-2026-20901\n  - Security updates for INTEL-SA-01443 / CVE-2026-20707\n  - Update for functional issues.\n\n- Intel CPU Microcode was updated to the 20260512 release (bsc#1265189)\n  - CVE-2025-35979: Security updates for INTEL-SA-01420\n  - https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-01420.html\n  - Update for various functional issues.\n\n    ##### New Platforms\n    | Processor | Stepping | F-M-S/PI | Old Ver | New Ver | Products\n    |:---------------|:---------|:------------|:---------|:---------|:---------\n    | PTL 404 | A1 | 06-cc-03/90 | | 0000011b | Intel Core Ultra Processor (Series 3)\n    | PTL-H 484/12Xe | A0/B0 | 06-cc-02/90 | | 0000011b | Intel Core Ultra Processor (Series 3)\n    ##### Updated Platforms\n    | Processor | Stepping | F-M-S/PI | Old Ver | New Ver | Products\n    |:---------------|:---------|:------------|:---------|:---------|:---------\n    | ARL-H | A1 | 06-c5-02/82 | 0000011b | 00000121 | Core Ultra Processor (Series 2)\n    | ARL-S/HX (8P) | B0 | 06-c6-02/82 | 0000011b | 00000121 | Core Ultra Processor (Series 2)\n    | EMR-SP | A1 | 06-cf-02/87 | 210002d3 | 210002e0 | Xeon Scalable Gen5\n    | GNR-AP/SP | Bx/Hx/Lx | 06-ad-01/95 | 01000405 | 01000423 | Xeon 6900/6700/6500 Series Processors with P-Cores\n    | GNR-D | B0/B1 | 06-ae-01/97 | 01000303 | 01000307 | Xeon 6700P-B/6500P-B Series SoC with P-Cores\n    | GNR-SP R1S | Bx/Hx/Lx | 06-ad-01/20 | 0a000133 | 0a000142 | Xeon 6700/6500-Series Processors with P-Cores\n    | LNL | B0 | 06-bd-01/80 | 00000125 | 00000126 | Core Ultra 200 V Series Processor\n    | SPR-SP | E4/S2 | 06-8f-07/87 | 2b000661 | 2b000670 | Xeon Scalable Gen4\n    | SPR-SP | E5/S3 | 06-8f-08/87 | 2b000661 | 2b000670 | Xeon Scalable Gen4\n    | SRF-AP/SP | C0 | 06-af-03/01 | 03000382 | 030003a3 | Xeon 6900/6700-Series Processors with E-Cores\n\n- Update to microcode-20260227:\n  * Update for functional issues. Refer to Intel Xeon 6700P-B/6500P-B-Series SoC with P-Cores for details.\n\n    ##### Updated Platforms\n    | Processor | Stepping | F-M-S/PI | Old Ver | New Ver | Products\n    |:---------------|:---------|:------------|:---------|:---------|:---------\n    | GNR-D | B0/B1 | 06-ae-01/97 | 010002f3 | 01000303 | Xeon 6700P-B/6500P-B Series SoC with P-Cores\n","status":"published","published":"2026-09-21T08:31:07Z","modified":"2026-09-29T18:23:19.008173229Z","updated_at":"2026-11-02T15:54:03.991985Z"},{"id":"SUSE-SU-2026:3917-1","title":"Security update for ucode-intel","description":"This update for ucode-intel fixes the following issues:\n\n- Intel CPU Microcode was updated to the 20260812 release (bsc#1274785)\n  - Removed MTL/06-aa-04/c0 due to functional issues observed when loading the MCU in some platforms.\n- Intel CPU Microcode was updated to the 20260811 release (bsc#1274785)\n  - Security updates for INTEL-SA-01379 / CVE-2025-31936\n  - Security updates for INTEL-SA-01404 / CVE-2025-31938\n  - Security updates for INTEL-SA-01423 / CVE-2026-20917\n  - Security updates for INTEL-SA-01428 / CVE-2025-35973\n  - Security updates for INTEL-SA-01435 / CVE-2026-20716\n  - Security updates for INTEL-SA-01441 / CVE-2026-20760\n  - Security updates for INTEL-SA-01442 / CVE-2026-20713 / CVE-2026-20901\n  - Security updates for INTEL-SA-01443 / CVE-2026-20707\n  - Update for functional issues.\n","status":"published","published":"2026-09-01T14:58:29Z","modified":"2026-09-10T18:23:45.607647083Z","updated_at":"2026-11-02T15:54:05.392906Z"},{"id":"SUSE-SU-2026:4019-1","title":"Security update for microcode_ctl","description":"This update for microcode_ctl fixes the following issues:\n\n- Intel CPU Microcode was updated to the 20260812 release (bsc#1274785)\n  - Removed MTL/06-aa-04/c0 due to functional issues observed when loading the MCU in some platforms.\n- Intel CPU Microcode was updated to the 20260811 release (bsc#1274785)\n  - Security updates for INTEL-SA-01379 / CVE-2025-31936\n  - Security updates for INTEL-SA-01404 / CVE-2025-31938\n  - Security updates for INTEL-SA-01423 / CVE-2026-20917\n  - Security updates for INTEL-SA-01428 / CVE-2025-35973\n  - Security updates for INTEL-SA-01435 / CVE-2026-20716\n  - Security updates for INTEL-SA-01441 / CVE-2026-20760\n  - Security updates for INTEL-SA-01442 / CVE-2026-20713 / CVE-2026-20901\n  - Security updates for INTEL-SA-01443 / CVE-2026-20707\n  - Update for functional issues.\n","status":"published","published":"2026-09-07T07:39:45Z","modified":"2026-09-13T18:23:16.063470861Z","updated_at":"2026-11-02T15:54:05.392906Z"},{"id":"SUSE-SU-2026:4025-1","title":"Security update for ucode-intel","description":"This update for ucode-intel fixes the following issues:\n\n- Intel CPU Microcode was updated to the 20260812 release (bsc#1274785)\n  - Removed MTL/06-aa-04/c0 due to functional issues observed when loading the MCU in some platforms.\n- Intel CPU Microcode was updated to the 20260811 release (bsc#1274785)\n  - Security updates for INTEL-SA-01379 / CVE-2025-31936\n  - Security updates for INTEL-SA-01404 / CVE-2025-31938\n  - Security updates for INTEL-SA-01423 / CVE-2026-20917\n  - Security updates for INTEL-SA-01428 / CVE-2025-35973\n  - Security updates for INTEL-SA-01435 / CVE-2026-20716\n  - Security updates for INTEL-SA-01441 / CVE-2026-20760\n  - Security updates for INTEL-SA-01442 / CVE-2026-20713 / CVE-2026-20901\n  - Security updates for INTEL-SA-01443 / CVE-2026-20707\n  - Update for functional issues.\n","status":"published","published":"2026-09-07T07:43:47Z","modified":"2026-09-13T18:23:16.358865218Z","updated_at":"2026-11-02T15:54:05.392906Z"}]}}