{"id":"CVE-2025-29946","aliases":["DEBIAN-CVE-2025-29946","EUVD-2025-207134","GHSA-gw24-f5j7-24m9","UBUNTU-CVE-2025-29946"],"status":"published","title":"Insufficient or Incomplete Data Removal in Hardware Component in SEV firmware doesn't fully flush...","description":"Insufficient or Incomplete Data Removal in Hardware Component in SEV firmware doesn't fully flush IOMMU. This can potentially lead to a loss of confidentiality and integrity in guest memory.","severity":{"version":"4.0","score":4.5,"vector":"CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00156,"percentile":0.04764,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-1301"],"published":"2026-02-10T19:15:57Z","modified":"2026-11-07T06:00:06Z","fixes":[{"ecosystem":"Debian:14","package":"amd64-microcode","fixed_in":["3.20260923.1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"amd64-microcode","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.20120117-1","1.20120117-1","1.20120117-2","1.20120117-2~bpo60+1","1.20120910-1","1.20120910-1~bpo60+1","1.20120910-2","1.20120910-2~bpo60+1","1.20120910-3","1.20141028.1","1.20160316.1","2.20120910-1","2.20120910-1~bpo70+1","2.20131007.1","2.20131007.1+really20130710.1","2.20141028.1","2.20141028.1~bpo70+1","2.20160316.1","2.20160316.1~bpo70+1","2.20160316.1~deb8u1","3.20160316.1","3.20160316.2","3.20160316.3","3.20171205.1","3.20171205.2","3.20180515.1","3.20180524.1","3.20180524.1~bpo9+1","3.20181128.1","3.20181128.1~bpo9+1","3.20181128.1~deb8u1","3.20181128.1~deb9u1","3.20181128.1~deb9u2","3.20191021.1","3.20191218.1","3.20220411.1","3.20220411.2","3.20230414.1","3.20230719.1","3.20230719.1~deb10u1","3.20230719.1~deb11u1","3.20230719.1~deb12u1","3.20230808.1","3.20230808.1.1","3.20230808.1.1~deb11u1","3.20230808.1.1~deb12u1","3.20230823.1","3.20231019.1","3.20240116.2","3.20240116.2+nmu1","3.20240710.1","3.20240710.2","3.20240710.2~deb11u1","3.20240710.2~deb12u1","3.20240820.1","3.20240820.1~deb11u1","3.20240820.1~deb12u1","3.20250311.1","3.20250311.1~deb11u1","3.20250311.1~deb12u1","3.20251202.1","3.20260923.1"]},{"source":"osv","ecosystem":"Debian:13","package":"amd64-microcode","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.20120117-1","1.20120117-1","1.20120117-2","1.20120117-2~bpo60+1","1.20120910-1","1.20120910-1~bpo60+1","1.20120910-2","1.20120910-2~bpo60+1","1.20120910-3","1.20141028.1","1.20160316.1","2.20120910-1","2.20120910-1~bpo70+1","2.20131007.1","2.20131007.1+really20130710.1","2.20141028.1","2.20141028.1~bpo70+1","2.20160316.1","2.20160316.1~bpo70+1","2.20160316.1~deb8u1","3.20160316.1","3.20160316.2","3.20160316.3","3.20171205.1","3.20171205.2","3.20180515.1","3.20180524.1","3.20180524.1~bpo9+1","3.20181128.1","3.20181128.1~bpo9+1","3.20181128.1~deb8u1","3.20181128.1~deb9u1","3.20181128.1~deb9u2","3.20191021.1","3.20191218.1","3.20220411.1","3.20220411.2","3.20230414.1","3.20230719.1","3.20230719.1~deb10u1","3.20230719.1~deb11u1","3.20230719.1~deb12u1","3.20230808.1","3.20230808.1.1","3.20230808.1.1~deb11u1","3.20230808.1.1~deb12u1","3.20230823.1","3.20231019.1","3.20240116.2","3.20240116.2+nmu1","3.20240710.1","3.20240710.2","3.20240710.2~deb11u1","3.20240710.2~deb12u1","3.20240820.1","3.20240820.1~deb11u1","3.20240820.1~deb12u1","3.20250311.1","3.20250311.1~deb11u1","3.20250311.1~deb12u1","3.20251202.1","3.20260923.1"]},{"source":"osv","ecosystem":"Debian:14","package":"amd64-microcode","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.20260923.1"}]}],"versions":["0.20120117-1","1.20120117-1","1.20120117-2","1.20120117-2~bpo60+1","1.20120910-1","1.20120910-1~bpo60+1","1.20120910-2","1.20120910-2~bpo60+1","1.20120910-3","1.20141028.1","1.20160316.1","2.20120910-1","2.20120910-1~bpo70+1","2.20131007.1","2.20131007.1+really20130710.1","2.20141028.1","2.20141028.1~bpo70+1","2.20160316.1","2.20160316.1~bpo70+1","2.20160316.1~deb8u1","3.20160316.1","3.20160316.2","3.20160316.3","3.20171205.1","3.20171205.2","3.20180515.1","3.20180524.1","3.20180524.1~bpo9+1","3.20181128.1","3.20181128.1~bpo9+1","3.20181128.1~deb8u1","3.20181128.1~deb9u1","3.20181128.1~deb9u2","3.20191021.1","3.20191218.1","3.20220411.1","3.20220411.2","3.20230414.1","3.20230719.1","3.20230719.1~deb10u1","3.20230719.1~deb11u1","3.20230719.1~deb12u1","3.20230808.1","3.20230808.1.1","3.20230808.1.1~deb11u1","3.20230808.1.1~deb12u1","3.20230823.1","3.20231019.1","3.20240116.2","3.20240116.2+nmu1","3.20240710.1","3.20240710.2","3.20240710.2~deb11u1","3.20240710.2~deb12u1","3.20240820.1","3.20240820.1~deb11u1","3.20240820.1~deb12u1","3.20250311.1","3.20250311.1~deb11u1","3.20250311.1~deb12u1","3.20251202.1"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"amd64-microcode","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.20230808.1.1ubuntu1","3.20231019.1ubuntu1","3.20231019.1ubuntu2","3.20231019.1ubuntu2.1","3.20250311.1ubuntu0.24.04.1","3.20251202.1ubuntu0.24.04.1"]},{"source":"osv","ecosystem":"Ubuntu:25.10","package":"amd64-microcode","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.20240820.1ubuntu1","3.20250311.1ubuntu1","3.20250708.1ubuntu1","3.20251202.1ubuntu0.25.10.1"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"amd64-microcode","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.20251202.1ubuntu2"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"amd64-microcode","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.20250708.1ubuntu1","3.20250708.1ubuntu2","3.20251202.1ubuntu1","3.20251202.1ubuntu2"]}],"products":[{"vendor":"amd","product":"amd epyc™ 9005 series processors"},{"vendor":"amd","product":"amd epyc™ embedded 9005 series processors"}],"references":[{"url":"https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-3023.html","tags":["report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-29946"},{"url":"https://github.com/advisories/GHSA-gw24-f5j7-24m9"},{"url":"https://security-tracker.debian.org/tracker/CVE-2025-29946","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2025-29946","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2025-29946","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2025-29946","description":"Insufficient or Incomplete Data Removal in Hardware Component in SEV firmware doesn't fully flush IOMMU. This can potentially lead to a loss of confidentiality and integrity in guest memory.","status":"published","published":"2026-02-10T19:15:57.179Z","modified":"2026-02-10T21:42:14.335Z","cvss":[{"version":"4.0","score":4.5,"vector":"CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N","level":"medium","assessor":"cna"}],"cwes":["CWE-1301"],"updated_at":"2026-11-02T14:32:45.797843Z"}],"euvd":[{"id":"EUVD-2025-207134","description":"Insufficient or Incomplete Data Removal in Hardware Component in SEV firmware doesn't fully flush IOMMU. This can potentially lead to a loss of confidentiality and integrity in guest memory.","status":"published","published":"2026-02-10T19:15:57Z","modified":"2026-02-10T21:42:14Z","cvss":[{"version":"4.0","score":4.5,"vector":"CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N","level":"medium"}],"updated_at":"2026-11-02T19:48:41.699812Z"}],"ghsa":[{"id":"GHSA-gw24-f5j7-24m9","title":"Insufficient or Incomplete Data Removal in Hardware Component in SEV firmware doesn't fully flush...","description":"Insufficient or Incomplete Data Removal in Hardware Component in SEV firmware doesn't fully flush IOMMU. This can potentially lead to a loss of confidentiality and integrity in guest memory.","status":"published","published":"2026-02-10T21:31:30Z","modified":"2026-02-10T21:31:42Z","cvss":[{"version":"4.0","score":4.5,"vector":"CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:N/VC:N/VI:N/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-1301"],"updated_at":"2026-11-02T15:06:08.47148Z"}],"nvd":[{"id":"CVE-2025-29946","description":"Insufficient or Incomplete Data Removal in Hardware Component in SEV firmware doesn't fully flush IOMMU. This can potentially lead to a loss of confidentiality and integrity in guest memory.","status":"published","published":"2026-02-10T20:16:44.057Z","modified":"2026-06-17T09:05:56.39Z","cvss":[{"version":"4.0","score":4.5,"vector":"CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:N/VC:N/VI:N/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-1301"],"updated_at":"2026-11-02T14:11:59.832225Z"}],"osv":[{"id":"DEBIAN-CVE-2025-29946","description":"Insufficient or Incomplete Data Removal in Hardware Component in SEV firmware doesn't fully flush IOMMU. This can potentially lead to a loss of confidentiality and integrity in guest memory.","status":"published","published":"2026-02-10T20:16:44.057Z","modified":"2026-11-07T06:00:06.22230444Z","cvss":[{"version":"4.0","score":4.5,"vector":"CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:N/VC:N/VI:N/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":"2026-11-07T06:09:50.435672Z"},{"id":"UBUNTU-CVE-2025-29946","description":"Insufficient or Incomplete Data Removal in Hardware Component in SEV firmware doesn't fully flush IOMMU. This can potentially lead to a loss of confidentiality and integrity in guest memory.","status":"published","published":"2026-02-10T20:16:00Z","modified":"2026-10-17T12:57:26.980079216Z","cvss":[{"version":"4.0","score":4.5,"vector":"CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N","level":"medium"}],"updated_at":"2026-11-02T16:55:26.330196Z"}]}}
