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Vulnerabilities

Vulnerability · 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) initiali

Published Feb 10, 2026 · catalog updated Feb 10, 2026 · AMD AMD EPYC™ Embedded 9004 Series Processors (formerly codenamed "Bergamo")

Last checked Nov 6, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2025-29939. EPSS is 0.16%. Act only if a listed version of AMD AMD EPYC™ Embedded 9004 Series Processors (formerly codenamed "Bergamo") is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium6.9
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.16%
Remediation
Advisory link
Affected products
vendor AMD AMD EPYC™ Embedded 9004 Series Processors (formerly codenamed "Bergamo") patch: EmbGenoaPI-SP5 1.0.0.B

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor AMD AMD EPYC™ Embedded 9004 Series Processors (formerly codenamed "Bergamo") patch: EmbGenoaPI-SP5 1.0.0.Bpatch: EmbGenoaPI-SP5 1.0.0.B

How to fix CVE-2025-29939

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-29939. EPSS is 0.16%. Act only if a listed version of AMD AMD EPYC™ Embedded 9004 Series Processors (formerly codenamed "Bergamo") is installed.

Which versions are affected?

Compare what you have installed with AMD AMD EPYC™ Embedded 9004 Series Processors (formerly codenamed "Bergamo") patch: EmbGenoaPI-SP5 1.0.0.B patch: EmbGenoaPI-SP5 1.0.0.B. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.16%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Feb 10, 2026 · EUVD

    Detected

    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.

  2. Feb 10, 2026 · EUVD

    Updated

    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.

Sources

  • CVE.orgVulnerability recordCVE-2025-29939

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-29939

    30-day exploitation probability 0.16%

    first.org
  • EUVDVulnerability recordEUVD-2025-207140

    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.

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Nov 6, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSNov 6, 2026
  • CVE.orgNov 4, 2026
  • EUVDNov 3, 2026