Is CVE-2025-29943 in the CISA KEV catalog?

No. CVE-2025-29943 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the EPSS score for CVE-2025-29943?

CVE-2025-29943 has an EPSS score of 0.20% (10th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2025-29943?

Upgrade amd64-microcode on debian unstable to 3.20251202.1 or later.

CVE & CISA-KEV Catalog

CVE-2025-29943

UNSCORED

NVD

Description

Write what were condition within AMD CPUs may allow an admin-privileged attacker to modify the configuration of the CPU pipeline potentially resulting in the corruption of the stack pointer inside an SEV-SNP guest.

CWE-123

How to fix

Remediation Available

amd64-microcodeDebian

Fixed in:3.20251202.1CVE-2025-29943

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3.1 Vector

No CVSS vector data available.

Exploit Intelligence

0.20%probability of exploitation in 30 days

10thpercentile

Low risk: more likely to be exploited than 10% of all known CVEs.

References

Other references1

amd.com

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-01-26.