{"id":"CVE-2026-16933","aliases":["EUVD-2026-62697","GHSA-vhm3-9qxc-9hqg"],"status":"published","title":"Power System Integer Overflow","description":"IBM Power Systems Firmware FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, FW950.00 through FW950.H2, OP940.00 through OP940.a1 (Power9), and OP940.00 through OP940.81 (Power HMC) is affected by a vulnerability in the interface between the BMC/FSP and the host system. An attacker with service account or root access to the BMC/FSP can read and write arbitrary regions of host system memory, giving full control over the host system and all hosted partitions, resulting in a confidentiality, integrity, and availability impact.","severity":{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00169,"percentile":0.06266,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-190"],"published":"2026-08-19T19:13:26Z","modified":"2026-08-25T14:05:17Z","products":[{"vendor":"ibm","product":"power systems firmware"},{"vendor":"ibm","product":"power_hardware_management_console_\\(7063-cr2\\)_firmware"},{"vendor":"ibm","product":"power_system_ac922_\\(8335-gth\\)_firmware"},{"vendor":"ibm","product":"power_system_ac922_\\(8335-gtx\\)_firmware"},{"vendor":"ibm","product":"power_system_e1050_\\(9043-mrx\\)_firmware"},{"vendor":"ibm","product":"power_system_e1080_\\(9080-hex\\)_firmware"},{"vendor":"ibm","product":"power_system_e1150_\\(9043-mru\\)_firmware"},{"vendor":"ibm","product":"power_system_e1180_\\(9080-heu\\)_firmware"},{"vendor":"ibm","product":"power_system_e950_\\(9040-mr9\\)_firmware"},{"vendor":"ibm","product":"power_system_e980_\\(9080-m9s\\)_firmware"},{"vendor":"ibm","product":"power_system_h922_\\(9223-22s\\)_firmware"},{"vendor":"ibm","product":"power_system_h924_\\(9223-42s\\)_firmware"},{"vendor":"ibm","product":"power_system_l1022_\\(9786-22h\\)_firmware"},{"vendor":"ibm","product":"power_system_l1024_\\(9786-42h\\)_firmware"},{"vendor":"ibm","product":"power_system_l1122_\\(9856-22h\\)_firmware"},{"vendor":"ibm","product":"power_system_l1124_\\(9856-42h\\)_firmware"},{"vendor":"ibm","product":"power_system_s1012_\\(9028-21b\\)_firmware"},{"vendor":"ibm","product":"power_system_s1014_\\(9105-41b\\)_firmware"},{"vendor":"ibm","product":"power_system_s1022_\\(9105-22a\\)_firmware"},{"vendor":"ibm","product":"power_system_s1022s_\\(9105-22b\\)_firmware"},{"vendor":"ibm","product":"power_system_s1024_\\(9105-42a\\)_firmware"},{"vendor":"ibm","product":"power_system_s1112_\\(9242-21b\\)_firmware"},{"vendor":"ibm","product":"power_system_s1112_\\(9242-21t\\)_firmware"},{"vendor":"ibm","product":"power_system_s1114_\\(9824-41b\\)_firmware"},{"vendor":"ibm","product":"power_system_s1122_\\(9824-22a\\)_firmware"},{"vendor":"ibm","product":"power_system_s1122s_\\(9824-22b\\)_firmware"},{"vendor":"ibm","product":"power_system_s1124_\\(9824-42a\\)_firmware"},{"vendor":"ibm","product":"power_system_s914_\\(9009-41g\\)_firmware"},{"vendor":"ibm","product":"power_system_s922_\\(9009-22g\\)_firmware"},{"vendor":"ibm","product":"power_system_s924_\\(9009-42g\\)_firmware"}],"references":[{"url":"https://www.ibm.com/support/pages/node/7283216","tags":["vendor-advisory","patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-16933"},{"url":"https://github.com/advisories/GHSA-vhm3-9qxc-9hqg"}],"sources":{"cve":[{"id":"CVE-2026-16933","title":"Power System Integer Overflow","description":"IBM Power Systems Firmware FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, FW950.00 through FW950.H2, OP940.00 through OP940.a1 (Power9), and OP940.00 through OP940.81 (Power HMC) is affected by a vulnerability in the interface between the BMC/FSP and the host system. An attacker with service account or root access to the BMC/FSP can read and write arbitrary regions of host system memory, giving full control over the host system and all hosted partitions, resulting in a confidentiality, integrity, and availability impact.","status":"published","published":"2026-08-19T19:13:26.703Z","modified":"2026-08-22T03:55:55.637Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-190"],"updated_at":"2026-11-02T14:20:10.870108Z"}],"euvd":[{"id":"EUVD-2026-62697","description":"IBM Power Systems Firmware FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, FW950.00 through FW950.H2, OP940.00 through OP940.a1 (Power9), and OP940.00 through OP940.81 (Power HMC) is affected by a vulnerability in the interface between the BMC/FSP and the host system. An attacker with service account or root access to the BMC/FSP can read and write arbitrary regions of host system memory, giving full control over the host system and all hosted partitions, resulting in a confidentiality, integrity, and availability impact.","status":"published","published":"2026-08-19T19:13:26Z","modified":"2026-08-22T03:55:55Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T18:01:36.154425Z"}],"ghsa":[{"id":"GHSA-vhm3-9qxc-9hqg","title":"IBM Power Systems Firmware FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80,...","description":"IBM Power Systems Firmware FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, FW950.00 through FW950.H2, OP940.00 through OP940.a1 (Power9), and OP940.00 through OP940.81 (Power HMC) is affected by a vulnerability in the interface between the BMC/FSP and the host system. An attacker with service account or root access to the BMC/FSP can read and write arbitrary regions of host system memory, giving full control over the host system and all hosted partitions, resulting in a confidentiality, integrity, and availability impact.","status":"published","published":"2026-08-19T21:30:35Z","modified":"2026-08-19T21:30:41Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-190"],"updated_at":"2026-11-02T15:10:44.718568Z"}],"nvd":[{"id":"CVE-2026-16933","description":"IBM Power Systems Firmware FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, FW950.00 through FW950.H2, OP940.00 through OP940.a1 (Power9), and OP940.00 through OP940.81 (Power HMC) is affected by a vulnerability in the interface between the BMC/FSP and the host system. An attacker with service account or root access to the BMC/FSP can read and write arbitrary regions of host system memory, giving full control over the host system and all hosted partitions, resulting in a confidentiality, integrity, and availability impact.","status":"published","published":"2026-08-19T20:17:11.807Z","modified":"2026-08-25T14:05:17.29Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-190"],"updated_at":"2026-11-02T14:12:39.962615Z"}]}}