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Fencer Vulns
medium 5.3

CVE-2025-29934 json

A bug within some AMD CPUs could allow a local admin-privileged attacker to run a SEV-SNP guest using stale TLB entries, potentially result…

published 2025-11-21 11 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-198507

cvss
5.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.1%
EPSS 0.1% chance of exploitation in 30 days, percentile 1%
public exploits
0
none known

Summary

A bug within some AMD CPUs could allow a local admin-privileged attacker to run a SEV-SNP guest using stale TLB entries, potentially resulting in loss of data integrity.

Patch / fix

  • AMD AMD EPYC™ 9004 Series Processors Genoa 1.0.0.E
  • AMD AMD EPYC™ 9005 Series Processors Turin 1.0.0.6
  • AMD AMD EPYC™ 8004 Series Processors Genoa 1.0.0.E
  • AMD AMD EPYC™ Embedded 7003 Series Processors EmbMilanPI-SP3 v9 1.0.0.B
  • AMD AMD EPYC™ Embedded 9004 Series Processors (formerly codenamed "Genoa") EmbGenoaPI-SP5 1.0.0.A
  • AMD AMD EPYC™ Embedded 9005 Series Processors EmbTurinPI-SP5 1.0.0.1
  • AMD AMD EPYC™ Embedded 9004 Series Processors (formerly codenamed "Bergamo") EmbGenoaPI-SP5 1.0.0.A
  • AMD AMD EPYC™ Embedded 8004 Series Processors EmbGenoaPI-SP5 1.0.0.A
  • amd64-microcode Debian 14 3.20251202.1

debian advisories DEBIAN-CVE-2025-29934

  • amd64-microcode Ubuntu 24.04 LTS 3.20251202.1ubuntu0.24.04.1
  • amd64-microcode Ubuntu 25.10 3.20251202.1ubuntu0.25.10.1
  • amd64-microcode Ubuntu 26.04 LTS 3.20251202.1ubuntu1

ubuntu advisories UBUNTU-CVE-2025-29934

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
11 mo ago

Exploit prediction

0.12% chance of exploitation in the next 30 days, higher than 1% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 5.3 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:H/A:N

Affected products

  • AMD AMD EPYC™ 9004 Series Processors
  • AMD AMD EPYC™ 9005 Series Processors
  • AMD AMD EPYC™ 8004 Series Processors
  • AMD AMD EPYC™ Embedded 7003 Series Processors
  • AMD AMD EPYC™ Embedded 9004 Series Processors (formerly codenamed "Genoa")
  • AMD AMD EPYC™ Embedded 9005 Series Processors
  • AMD AMD EPYC™ Embedded 9004 Series Processors (formerly codenamed "Bergamo")
  • AMD AMD EPYC™ Embedded 8004 Series Processors

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.