CVE-2025-29946

amd64-microcode: Insufficient or Incomplete Data Removal in Hardware Component in SEV firmware doesn't fully flush IOMMU

CVE-2025-29946 is fixed in amd64-microcode on 1 platform by DEBIAN-CVE-2025-29946 (version 3.20260923.1), released February 10, 2026. It is not reported as exploited. Patch Radar priority: Routine.

Routine

CVSS

n/a

No vendor severity

Exploitation

None reported

No vendor assessment

CISA KEV

Not listed

Not in the Known Exploited Vulnerabilities catalog

EPSS

0.0016

4th percentile

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.

Where it's fixed

Product	Fixed in	Fix	Released
Linux
amd64-microcode · Debian 14	3.20260923.1	DEBIAN-CVE-2025-29946	Feb 10, 2026

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