Vulnerability record/PUBLISHED/Published Nov 10, 2026 22:12:39 UTC

CVE-2026-0003

Use of a per-part static key in the ASP Bootloader could allow an attacker to downgrade the Secure Encrypted Virtualization (SEV) firmware and exploit known vulnerabilities to decrypt memory potentially resulting in loss of confidentiality.

Base score5.9/ 10

SeverityMediumCVSS 4.0

Exploitability / impact

CVSS metric breakdown

Vector-derived attributes

Base severityMedium

Attack vectorLocalAV

Attack complexityLowAC

Attack requirementsNoneAT

Privileges requiredHighPR

User interactionNoneUI

Vulnerable system confidentialityLowVC

Vulnerable system integrityNoneVI

Vulnerable system availabilityNoneVA

Subsequent system confidentialityHighSC

Subsequent system integrityNoneSI

Subsequent system availabilityNoneSA

CVSS vector stringCVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:H/SI:N/SA:N

CVSS communicates standardized severity and impact characteristics. It does not establish whether a system is exploitable in your specific environment.

Record context

CVE Numbering AuthorityAMD

Last updatedNov 12, 2026 23:51:30 UTC

PublishedNov 10, 2026 22:12:39 UTC

ReservedOct 9, 2025 19:57:20 UTC