{"attribution":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","cve":{"id":"CVE-2026-18448","sourceIdentifier":"infosec@edk2.groups.io","published":"2026-11-10T19:21:15.707","lastModified":"2026-11-10T19:21:15.707","vulnStatus":"Received","cveTags":[],"descriptions":[{"lang":"en","value":"EDK2 contains a vulnerability in BIOS\nwhere a privileged attacker may cause “Exposure of Sensitive Information during\nTransient Execution” by local access. Successful exploitation of\nthis vulnerability may result in disclosure of SMRAM contents. It could also impact Confidentiality."}],"affected":[{"source":"infosec@edk2.groups.io","affectedData":[{"vendor":"TianoCore","product":"EDK2","defaultStatus":"unaffected","versions":[{"version":"0","lessThanOrEqual":"edk2-stable202608","versionType":"custom","status":"affected"}]}]}],"metrics":{"cvssMetricV40":[{"source":"infosec@edk2.groups.io","type":"Secondary","cvssData":{"version":"4.0","vectorString":"CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/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","baseScore":5.6,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"HIGH","attackRequirements":"PRESENT","privilegesRequired":"HIGH","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","confidentialityRequirement":"NOT_DEFINED","integrityRequirement":"NOT_DEFINED","availabilityRequirement":"NOT_DEFINED","modifiedAttackVector":"NOT_DEFINED","modifiedAttackComplexity":"NOT_DEFINED","modifiedAttackRequirements":"NOT_DEFINED","modifiedPrivilegesRequired":"NOT_DEFINED","modifiedUserInteraction":"NOT_DEFINED","modifiedVulnConfidentialityImpact":"NOT_DEFINED","modifiedVulnIntegrityImpact":"NOT_DEFINED","modifiedVulnAvailabilityImpact":"NOT_DEFINED","modifiedSubConfidentialityImpact":"NOT_DEFINED","modifiedSubIntegrityImpact":"NOT_DEFINED","modifiedSubAvailabilityImpact":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED"}}]},"references":[{"url":"https://github.com/tianocore/edk2/security/advisories/GHSA-7v86-66vf-h88j","source":"infosec@edk2.groups.io"}]}}