Home/CVE/Improper Prevention of Lock Bit Modification in SEV firmware could allow a privileged attacker to downgrade firmware pot
CVE

CVE-2025-52536

Improper Prevention of Lock Bit Modification in SEV firmware could allow a privileged attacker to downgrade firmware pot

Improper Prevention of Lock Bit Modification in SEV firmware could allow a privileged attacker to downgrade firmware potentially resulting in a loss of integrity.

EPSS 0.00018
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-1231Improper Prevention of Lock Bit Modification
▣

Scoring & Timeline

Published to NVD10 Feb 2026 · 08:16 PM
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
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References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-3023.html
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