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Fencer Vulns
medium 4.5

CVE-2025-29946 json

Insufficient or Incomplete Data Removal in Hardware Component in SEV firmware doesn't fully flush IOMMU.

published 2026-02-10 8 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-207134

cvss
4.5
version 4.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 4%
public exploits
0
none known

Summary

Insufficient or Incomplete Data Removal in Hardware Component in SEV firmware doesn't fully flush IOMMU. This can potentially lead to a loss of confidentiality and integrity in guest memory.

Patch / fix

  • AMD AMD EPYC™ 9005 Series Processors TurinPI 1.0.0.6
  • AMD AMD EPYC™ Embedded 9005 Series Processors EmbTurinPI-SP5_1.0.0.1
  • amd64-microcode Debian 14 3.20260923.1

debian advisories DEBIAN-CVE-2025-29946

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
8 mo ago

Exploit prediction

0.16% chance of exploitation in the next 30 days, higher than 4% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 4.0 4.5 CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N
CNA 4.0 4.5 CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected products

  • AMD AMD EPYC™ 9005 Series Processors
  • AMD AMD EPYC™ Embedded 9005 Series Processors

Classification

Weakness
  • CWE-1301 Insufficient or Incomplete Data Removal within Hardware Component

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.