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AMD SEV Confidential Computing Vulnerability, Jun 10, 2025 (2025-06-10)
(AMD-SB-3019)

Summary:

Researchers from Google® have provided AMD with information on a potential vulnerability that, if successfully exploited, could lead to the loss of SEV-based protection of a confidential guest.

AMD has made available a mitigation for this issue which requires updating microcode on all impacted platforms to help prevent an attacker from loading malicious microcode. Additionally, an SEV firmware update is required for some platforms to support SEV-SNP attestation. Updating the system BIOS image and rebooting the platform will enable attestation of the mitigation. A confidential guest can verify the mitigation has been enabled on the target platform through the SEV-SNP attestation report.

Affected Platforms and BIOS version numbers that contain the fix:

Product BIOS Version with Fix
AMD SP5 Genoa/Turin
S8050TBD
FT65TB8050TBD
GC68AB8056V3.00
GC68CB8056V4.00
GC68CB8056-TUV4.02
TS70AB8056V2.00
TS70AB8056-TUV3.02
TD76B8058TBD
TS70B8056V2.00
TS70B8056-TUV2.02
TN85B8261TBD
AMD SP6 Siena
S8040TBD
GC73AB8046TBD
AMD Rome/Milan
S8030 V4.04
FT65TB8030 V1.04.B20
S8036 TBD
GC68AB8036 V2.12.B20
TS65AB8036 V2.11.B11
TS65B8036 V2.12.B10
TN83B8251 TBD
TS75AB8252 TBD




 

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