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CVE-2025-52536

CVE-2025-52536

CVSS 6.7 MEDIUMEPSS 0.1%CWE-1231
Improper Prevention of Lock Bit Modification in SEV firmware could allow a privileged attacker to downgrade firmware potentially resulting in a loss of integrity.
CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
Affected products
AMD · AMD EPYC™ 7003 Series ProcessorsAMD · AMD EPYC™ 8004 Series ProcessorsAMD · AMD EPYC™ 9004 Series ProcessorsAMD · AMD EPYC™ 9005 Series ProcessorsAMD · AMD EPYC™ Embedded 7003 Series ProcessorsAMD · AMD EPYC™ Embedded 8004 Series ProcessorsAMD · AMD EPYC™ Embedded 9004 Series Processors (formerly codenamed "Bergamo")AMD · AMD EPYC™ Embedded 9004 Series Processors (formerly codenamed "Genoa")AMD · AMD EPYC™ Embedded 9005 Series Processors

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References
https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-3023.html