How severe is CVE-2025-29943?

CVE-2025-29943 has a CVSS 4.0 base score of 4.6, rated medium severity.

Is CVE-2025-29943 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-29943?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-29943 have an EU (EUVD) identifier?

Yes. CVE-2025-29943 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-2929.

When was CVE-2025-29943 published?

CVE-2025-29943 was published on 2026-01-16 and last updated on 2026-06-17.

CVE-2025-29943

CVE-2025-29943 is a medium-severity vulnerability with a CVSS 4.0 base score of 4.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-123.

Key facts

Severity: Medium (CVSS 4.0 base score 4.6)
EPSS exploit prediction: 0% (10th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-2929
Weakness: CWE-123
Published: 2026-01-16
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2025-29943?: 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.
How severe is CVE-2025-29943?: CVE-2025-29943 has a CVSS 4.0 base score of 4.6, rated medium severity.
Is CVE-2025-29943 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-29943?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-29943 have an EU (EUVD) identifier?: Yes. CVE-2025-29943 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-2929.
When was CVE-2025-29943 published?: CVE-2025-29943 was published on 2026-01-16 and last updated on 2026-06-17.

References

https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-3027.html

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