How severe is CVE-2025-29952?

CVE-2025-29952 has a CVSS 4.0 base score of 5.9, rated medium severity.

Is CVE-2025-29952 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-29952?

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

Does CVE-2025-29952 have an EU (EUVD) identifier?

Yes. CVE-2025-29952 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-207139.

When was CVE-2025-29952 published?

CVE-2025-29952 was published on 2026-02-10 and last updated on 2026-06-17.

CVE-2025-29952

CVE-2025-29952 is a medium-severity vulnerability with a CVSS 4.0 base score of 5.9. 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-457.

Key facts

Severity: Medium (CVSS 4.0 base score 5.9)
EPSS exploit prediction: 0% (4th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-207139
Weakness: CWE-457
Published: 2026-02-10
Last modified: 2026-06-17

Description

Improper Initialization within the AMD Secure Encrypted Virtualization (SEV) firmware can allow an admin privileged attacker to corrupt RMP covered memory, potentially resulting in loss of guest memory integrity

Frequently asked questions

What is CVE-2025-29952?: Improper Initialization within the AMD Secure Encrypted Virtualization (SEV) firmware can allow an admin privileged attacker to corrupt RMP covered memory, potentially resulting in loss of guest memory integrity
How severe is CVE-2025-29952?: CVE-2025-29952 has a CVSS 4.0 base score of 5.9, rated medium severity.
Is CVE-2025-29952 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-29952?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-29952 have an EU (EUVD) identifier?: Yes. CVE-2025-29952 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-207139.
When was CVE-2025-29952 published?: CVE-2025-29952 was published on 2026-02-10 and last updated on 2026-06-17.

References

https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-3023.html

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