CVE-2025-52536

EUVD-2025-207138
Improper Prevention of Lock Bit Modification in SEV firmware could allow a privileged attacker to downgrade firmware potentially resulting in a loss of integrity.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
UNKNOWN
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Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: 3%
Debian logo
Debian Releases
Debian Product
Codename
amd64-microcode
bookworm/non-free-firmware
vulnerable
bookworm/non-free-firmware (security)
vulnerable
bullseye/non-free
vulnerable
bullseye/non-free (security)
vulnerable
forky/non-free-firmware
vulnerable
sid/non-free-firmware
vulnerable
trixie/non-free-firmware
vulnerable
Common Weakness Enumeration
References
https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-3023.html