How severe is CVE-2025-29939?

CVE-2025-29939 has a CVSS 4.0 base score of 6.9, rated medium severity.

Is CVE-2025-29939 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (3rd percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-29939?

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

Does CVE-2025-29939 have an EU (EUVD) identifier?

Yes. CVE-2025-29939 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-207140.

When was CVE-2025-29939 published?

CVE-2025-29939 was published on 2026-02-10 and last updated on 2026-06-17.

CVE-2025-29939

CVE-2025-29939 is a medium-severity vulnerability with a CVSS 4.0 base score of 6.9. 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-284.

Key facts

Severity: Medium (CVSS 4.0 base score 6.9)
EPSS exploit prediction: 0% (3rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-207140
Weakness: CWE-284
Published: 2026-02-10
Last modified: 2026-06-17

Description

Improper access control in secure encrypted virtualization (SEV) could allow a privileged attacker to write to the reverse map page (RMP) during secure nested paging (SNP) initialization, potentially resulting in a loss of guest memory confidentiality and integrity.

Frequently asked questions

What is CVE-2025-29939?: Improper access control in secure encrypted virtualization (SEV) could allow a privileged attacker to write to the reverse map page (RMP) during secure nested paging (SNP) initialization, potentially resulting in a loss of guest memory confidentiality and integrity.
How severe is CVE-2025-29939?: CVE-2025-29939 has a CVSS 4.0 base score of 6.9, rated medium severity.
Is CVE-2025-29939 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (3rd percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-29939?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-29939 have an EU (EUVD) identifier?: Yes. CVE-2025-29939 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-207140.
When was CVE-2025-29939 published?: CVE-2025-29939 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

Other CWE-284 (Improper Access Control) vulnerabilities

CVE-2026-50746 — Critical (CVSS 10.0): A malicious actor with access to the network could exploit an Improper Access Control vulnerability found in UniFi…
CVE-2026-46978 — Critical (CVSS 10.0): Vulnerability in the Oracle Solaris product of Oracle Systems (component: Remote Administration Daemon). The…
CVE-2026-35308 — Critical (CVSS 10.0): Vulnerability in the Oracle Coherence product of Oracle Fusion Middleware (component: Centralized Third Party Jars).…
CVE-2026-35307 — Critical (CVSS 10.0): Vulnerability in the Oracle Coherence product of Oracle Fusion Middleware (component: Core). Supported versions that…
CVE-2026-46695 — Critical (CVSS 10.0): Boxlite is a sandbox service that allows users to create lightweight virtual machines (Boxes) and launch OCI containers…
CVE-2026-46840 — Critical (CVSS 10.0): Vulnerability in Oracle REST Data Services (component: Backend-as-a-Service). Supported versions that are affected are…

Browse all CWE-284 (Improper Access Control) vulnerabilities →