CVE catalog

CVE-2025-52534

amd64-microcode: CVE-2025-52534

[CVE catalog]

Severity
Medium
Published
Source
[NVD] · [CVE record]
EPSS
0.34% · Oct 25, 2026

Improper bound check within AMD CPU microcode can allow a malicious guest to write to host memory, potentially resulting in loss of integrity.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

DistributionPackageReleaseVersionStatus
Debianamd64-microcodesid3.20251202.1vulnerable
Debianamd64-microcodeforky3.20251202.1vulnerable
Debianamd64-microcodetrixie3.20250311.1vulnerable
Debianamd64-microcodebookworm3.20250311.1~deb12u1vulnerable
Debianamd64-microcodebookworm-security3.20230719.1~deb12u1vulnerable
Ubuntuamd64-microcode14.041.20120910-3vulnerable
Ubuntuamd64-microcode14.042.20131007.1+really20130710.1vulnerable
Ubuntuamd64-microcode14.043.20180524.1~ubuntu0.14.04.1vulnerable
Ubuntuamd64-microcode14.043.20180524.1~ubuntu0.14.04.2+really20130710.1vulnerable
Ubuntuamd64-microcode14.043.20180524.1~ubuntu0.14.04.2+really20130710.1ubuntu1vulnerable
Ubuntuamd64-microcodepro3.20160316.3vulnerable
Ubuntuamd64-microcodepro3.20171205.1vulnerable
Ubuntuamd64-microcodepro3.20180524.1~ubuntu0.18.04.1vulnerable
Ubuntuamd64-microcodepro3.20180524.1~ubuntu0.18.04.2vulnerable
Ubuntuamd64-microcodepro3.20191021.1ubuntu0.18.04.2vulnerable
Ubuntuamd64-microcodepro3.20191021.1+really3.20181128.1~ubuntu0.18.04.1vulnerable
Ubuntuamd64-microcodepro3.20191021.1+really3.20181128.1~ubuntu0.18.04.1+esm1vulnerable
Ubuntuamd64-microcodepro3.20191021.1+really3.20181128.1~ubuntu0.18.04.1+esm2vulnerable
Ubuntuamd64-microcodepro3.20191021.1+really3.20181128.1~ubuntu0.18.04.1+esm3vulnerable
Ubuntuamd64-microcode20.043.20181128.1ubuntu2vulnerable
Ubuntuamd64-microcode20.043.20191021.1ubuntu1vulnerable
Ubuntuamd64-microcode20.043.20191218.1ubuntu1vulnerable
Ubuntuamd64-microcode20.043.20191218.1ubuntu1.1vulnerable
Ubuntuamd64-microcode20.043.20191218.1ubuntu1.2vulnerable
Ubuntuamd64-microcode20.043.20191218.1ubuntu1.3vulnerable
Ubuntuamd64-microcode22.043.20191218.1ubuntu2vulnerable
Ubuntuamd64-microcode22.043.20191218.1ubuntu2.1vulnerable
Ubuntuamd64-microcode22.043.20191218.1ubuntu2.2vulnerable
Ubuntuamd64-microcode22.043.20191218.1ubuntu2.3vulnerable
Ubuntuamd64-microcode24.043.20230808.1.1ubuntu1vulnerable
Ubuntuamd64-microcode24.043.20231019.1ubuntu1vulnerable
Ubuntuamd64-microcode24.043.20231019.1ubuntu2vulnerable
Ubuntuamd64-microcode24.043.20231019.1ubuntu2.1vulnerable
Ubuntuamd64-microcode24.043.20250311.1ubuntu0.24.04.1vulnerable
Ubuntuamd64-microcode24.043.20251202.1ubuntu0.24.04.1fixed
Ubuntuamd64-microcode25.103.20240820.1ubuntu1vulnerable
Ubuntuamd64-microcode25.103.20250311.1ubuntu1vulnerable
Ubuntuamd64-microcode25.103.20250708.1ubuntu1vulnerable
Ubuntuamd64-microcode25.103.20251202.1ubuntu0.25.10.1fixed
Ubuntuamd64-microcode26.043.20250708.1ubuntu1vulnerable
Ubuntuamd64-microcode26.043.20250708.1ubuntu2vulnerable
Ubuntuamd64-microcode26.043.20251202.1ubuntu1fixed

Fixed-version evidence

DistributionPackageTypeReleaseFixed versionUrgencyOriginBugs
Debianamd64-microcodesourcesid(unfixed)not yet assignedNot reportedNot reported
Debianamd64-microcodesourceforky(unfixed)not yet assignedNot reportedNot reported
Debianamd64-microcodesourcetrixie(unfixed)not yet assignedNot reportedNot reported
Debianamd64-microcodesourcebookworm(unfixed)not yet assignedNot reportedNot reported
Ubuntuamd64-microcodedeb24.043.20251202.1ubuntu0.24.04.1Not reportedUBUNTU-CVE-2025-52534Not reported
Ubuntuamd64-microcodedeb25.103.20251202.1ubuntu0.25.10.1Not reportedUBUNTU-CVE-2025-52534Not reported
Ubuntuamd64-microcodedeb26.043.20251202.1ubuntu1Not reportedUBUNTU-CVE-2025-52534Not reported

OpenFactory catalog packages

[Debian 12 (Bookworm)]

  • [amd64-microcode]Affected
    Details (1)

    • 3.20250311.1~deb12u1 · amd64 · bookworm

      Affected

      dsa · amd64-microcode · debian · bookworm; dsa · amd64-microcode · debian · 12

[Debian 13 (Trixie)]

  • [amd64-microcode]Affected
    Details (1)

    • 3.20250311.1 · amd64 · trixie

      Affected

      dsa · amd64-microcode · debian · 13

Observed:

References

[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database]