CVE-2025-29934

MEDIUM

Published Nov 21, 2025 Modified Apr 15, 2026 CWE-459

Description

A bug within some AMD CPUs could allow a local admin-privileged attacker to run a SEV-SNP guest using stale TLB entries, potentially resulting in loss of data integrity.

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CVSS v3.1 Score

5.3

MEDIUM

CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:H/A:N

Weakness Type (CWE)

CWE-459 CWE-459

References

Other References

https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-3029.html

Frequently Asked Questions

What is CVE-2025-29934? +

A bug within some AMD CPUs could allow a local admin-privileged attacker to run a SEV-SNP guest using stale TLB entries, potentially resulting in loss of data integrity. It has a CVSS v3.1 base score of 5.3 (MEDIUM).

How severe is CVE-2025-29934? +

CVE-2025-29934 has a CVSS v3.1 score of 5.3 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

How do I check if I'm vulnerable to CVE-2025-29934? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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