Vulnerability · Published Feb 10, 2026 · Assigned by AMD
CVE-2025-29946
Medium 4.5
In plain English
A medium-severity security flaw in AMD EPYC™ 9005 Series Processors from AMD. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 5% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 4.0)4.5Medium
Exploit odds (30 days)0.2%top 95.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | amd64-microcode | no fix listed | DEBIAN-CVE-2025-29946 |
| Debian:13 | amd64-microcode | no fix listed | DEBIAN-CVE-2025-29946 |
| Debian:14 | amd64-microcode | 3.20260923.1 | DEBIAN-CVE-2025-29946 |
| Ubuntu:24.04:LTS | amd64-microcode | no fix listed | UBUNTU-CVE-2025-29946 |
| Ubuntu:25.10 | amd64-microcode | no fix listed | UBUNTU-CVE-2025-29946 |
| Ubuntu:26.04:LTS | amd64-microcode | no fix listed | UBUNTU-CVE-2025-29946 |
| Ubuntu:26.10 | amd64-microcode | no fix listed | UBUNTU-CVE-2025-29946 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| AMD | AMD EPYC™ 9005 Series Processors | see references |
| AMD | AMD EPYC™ Embedded 9005 Series Processors | see references |
Weakness: CWE-1301 · Vector: 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