{"id":"CVE-2026-14968","aliases":["EUVD-2026-122796"],"status":"published","title":"AMD MmSaveStateLib SysCall path performs out-of-bounds writes for partial save-state reads","description":"EDK2 contains vulnerabilities in\nBIOS where skilled and privileged users or attackers may cause “Out-of-bounds Write” by local access. Successful exploitation of this vulnerability could compromise\nSMM handler integrity, cause system instability, and lead to denial of service. It could also impact Integrity and Availability.","severity":{"version":"4.0","score":7,"vector":"CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:N/VI:H/VA:H/SC:N/SI:H/SA:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00117,"percentile":0.01674,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-787"],"published":"2026-11-10T18:50:37Z","modified":"2026-11-10T18:50:37Z","products":[{"vendor":"tianocore","product":"edk2"}],"references":[{"url":"https://github.com/tianocore/edk2/security/advisories/GHSA-979r-6wfh-gq4h"}],"sources":{"cve":[{"id":"CVE-2026-14968","title":"AMD MmSaveStateLib SysCall path performs out-of-bounds writes for partial save-state reads","description":"EDK2 contains vulnerabilities in\nBIOS where skilled and privileged users or attackers may cause “Out-of-bounds Write” by local access. Successful exploitation of this vulnerability could compromise\nSMM handler integrity, cause system instability, and lead to denial of service. It could also impact Integrity and Availability.","status":"published","published":"2026-11-10T18:50:37.286Z","modified":"2026-11-10T18:50:37.286Z","cvss":[{"version":"4.0","score":7,"vector":"CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:N/VI:H/VA:H/SC:N/SI:H/SA:H","level":"high","assessor":"cna"}],"cwes":["CWE-787"],"updated_at":"2026-11-10T19:39:59.389041Z"}],"euvd":[{"id":"EUVD-2026-122796","description":"EDK2 contains vulnerabilities in\nBIOS where skilled and privileged users or attackers may cause “Out-of-bounds Write” by local access. Successful exploitation of this vulnerability could compromise\nSMM handler integrity, cause system instability, and lead to denial of service. It could also impact Integrity and Availability.","status":"published","published":"2026-11-10T18:50:37Z","modified":"2026-11-10T18:50:37Z","cvss":[{"version":"4.0","score":7,"vector":"CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:N/VI:H/VA:H/SC:N/SI:H/SA:H","level":"high"}],"updated_at":"2026-11-10T20:23:07.469802Z"}],"nvd":[{"id":"CVE-2026-14968","description":"EDK2 contains vulnerabilities in\nBIOS where skilled and privileged users or attackers may cause “Out-of-bounds Write” by local access. Successful exploitation of this vulnerability could compromise\nSMM handler integrity, cause system instability, and lead to denial of service. It could also impact Integrity and Availability.","status":"published","published":"2026-11-10T19:21:14.63Z","modified":"2026-11-10T19:21:14.63Z","cvss":[{"version":"4.0","score":7,"vector":"CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:N/VI:H/VA:H/SC:N/SI:H/SA:H/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":"high","assessor":"secondary"}],"cwes":["CWE-787"],"updated_at":"2026-11-10T22:21:33.392456Z"}]}}