Weakness in Secure Encrypted Virtualization Firmware by AMD
CVE-2025-29941

6MEDIUM

Key Information:

Vendor

Amd
Status
Amd Epyc™ 9004 Series Processors
Amd Epyc™ 7003 Series Processors
Amd Epyc™ 9005 Series Processors
Amd Epyc™ 8004 Series Processors
Vendor
CVE Published:
10 November 2026

What is CVE-2025-29941?

The Secure Encrypted Virtualization (SEV) firmware by AMD features an improper implementation of seed management within its pseudo-random number generator. This flaw potentially allows a malicious hypervisor or migration agent to manipulate imported guest contexts. Such exploitation could lead to unauthorized access and loss of confidentiality regarding derived guest keys, undermining the security guarantees offered by the SEV technology.

Affected Version(s)

AMD EPYC™ 7003 Series Processors MilanPI-SP3_1.0.0.K

AMD EPYC™ 8004 Series Processors GenoaPI_1.0.0.J

AMD EPYC™ 8005 Series Processors TurinPI_1.0.0.B

References

https://www.amd.com/en/resources/product-security/bulleti...

CVSS V4

Score:
6
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.