CVE catalog

CVE-2025-22839

Intel Microcode vulnerabilities

[CVE catalog]

Insufficient granularity of access control in the OOB-MSM for some Intel(R) Xeon(R) 6 Scalable processors may allow a privileged user to potentially enable escalation of privilege via adjacent access.

Severity
High · CVSS 7.5CVSS:3.1/AV:A/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:L
Published
Source
[NVD] · [CVE record]
EPSS
0.19% · Oct 27, 2026

Projects and upstream resources

Reported versions and fixes

Each observation applies to its named package, distribution, and release. Distribution backports can fix a vulnerability while retaining an older upstream version number.

Version impact has not been established. The original provider fields are retained below.

Provider details and historical evidence
Original provider fields
{
  "package_releases": [
    {
      "name": "intel-microcode",
      "status": "fixed",
      "release": "sid",
      "version": "3.20260227.1"
    },
    {
      "name": "intel-microcode",
      "status": "fixed",
      "release": "forky",
      "version": "3.20260227.1"
    },
    {
      "name": "intel-microcode",
      "status": "fixed",
      "release": "trixie",
      "version": "3.20251111.1~deb13u1"
    },
    {
      "name": "intel-microcode",
      "status": "fixed",
      "release": "trixie-security",
      "version": "3.20250812.1~deb13u1"
    },
    {
      "name": "intel-microcode",
      "status": "fixed",
      "release": "bookworm",
      "version": "3.20251111.1~deb12u1"
    },
    {
      "name": "intel-microcode",
      "status": "fixed",
      "release": "bookworm-security",
      "version": "3.20250812.1~deb12u1"
    }
  ],
  "fixed_versions": [
    {
      "bug": 1110983,
      "name": "intel-microcode",
      "type": "source",
      "origin": null,
      "release": "sid",
      "urgency": "not yet assigned",
      "fixed_version": "3.20250812.1"
    },
    {
      "bug": 1110983,
      "name": "intel-microcode",
      "type": "source",
      "origin": null,
      "release": "forky",
      "urgency": "not yet assigned",
      "fixed_version": "3.20250812.1"
    },
    {
      "bug": 1110983,
      "name": "intel-microcode",
      "type": "source",
      "origin": null,
      "release": "trixie",
      "urgency": "not yet assigned",
      "fixed_version": "3.20250812.1~deb13u1"
    },
    {
      "bug": 1110983,
      "name": "intel-microcode",
      "type": "source",
      "origin": null,
      "release": "bookworm",
      "urgency": "not yet assigned",
      "fixed_version": "3.20250812.1~deb12u1"
    }
  ],
  "distribution_packages": [
    {
      "name": "intel-microcode",
      "distro": "ubuntu",
      "release": "noble",
      "ecosystem": "deb",
      "fixed_version": "3.20250812.1~deb12u1"
    },
    {
      "name": "intel-microcode",
      "distro": "ubuntu",
      "release": "noble",
      "ecosystem": "deb",
      "fixed_version": "3.20250812.0ubuntu0.24.04.1"
    },
    {
      "name": "intel-ucode",
      "distro": "alpine",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "20250812-r0"
            }
          ]
        }
      ],
      "release": "3.19",
      "versions": [],
      "ecosystem": "apk",
      "fixed_version": "20250812-r0",
      "provider_record_id": "ALPINE-CVE-2025-22839"
    },
    {
      "name": "intel-ucode",
      "distro": "alpine",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "20250812-r0"
            }
          ]
        }
      ],
      "release": "3.20",
      "versions": [],
      "ecosystem": "apk",
      "fixed_version": "20250812-r0",
      "provider_record_id": "ALPINE-CVE-2025-22839"
    },
    {
      "name": "intel-ucode",
      "distro": "alpine",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "20250812-r0"
            }
          ]
        }
      ],
      "release": "3.21",
      "versions": [],
      "ecosystem": "apk",
      "fixed_version": "20250812-r0",
      "provider_record_id": "ALPINE-CVE-2025-22839"
    },
    {
      "name": "intel-ucode",
      "distro": "alpine",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "20250812-r0"
            }
          ]
        }
      ],
      "release": "3.22",
      "versions": [],
      "ecosystem": "apk",
      "fixed_version": "20250812-r0",
      "provider_record_id": "ALPINE-CVE-2025-22839"
    },
    {
      "name": "intel-ucode",
      "distro": "alpine",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "20250812-r0"
            }
          ]
        }
      ],
      "release": "3.23",
      "versions": [],
      "ecosystem": "apk",
      "fixed_version": "20250812-r0",
      "provider_record_id": "ALPINE-CVE-2025-22839"
    },
    {
      "name": "intel-ucode",
      "distro": "alpine",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "20250812-r0"
            }
          ]
        }
      ],
      "release": "3.24",
      "versions": [],
      "ecosystem": "apk",
      "fixed_version": "20250812-r0",
      "provider_record_id": "ALPINE-CVE-2025-22839"
    },
    {
      "name": "intel-microcode",
      "distro": "ubuntu",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.20250812.0ubuntu0.20.04.1+esm1"
            }
          ]
        }
      ],
      "release": "pro",
      "versions": [
        "3.20190918.1ubuntu1",
        "3.20191115.1ubuntu1",
        "3.20191115.1ubuntu2",
        "3.20191115.1ubuntu3",
        "3.20200609.0ubuntu0.20.04.0",
        "3.20200609.0ubuntu0.20.04.1",
        "3.20200609.0ubuntu0.20.04.2",
        "3.20201110.0ubuntu0.20.04.1",
        "3.20201110.0ubuntu0.20.04.2",
        "3.20210216.0ubuntu0.20.04.1",
        "3.20210608.0ubuntu0.20.04.1",
        "3.20220510.0ubuntu0.20.04.1",
        "3.20220809.0ubuntu0.20.04.1",
        "3.20230214.0ubuntu0.20.04.1",
        "3.20230808.0ubuntu0.20.04.1",
        "3.20231114.0ubuntu0.20.04.1",
        "3.20240514.0ubuntu0.20.04.1",
        "3.20240813.0ubuntu0.20.04.2",
        "3.20240910.0ubuntu0.20.04.1",
        "3.20241112.0ubuntu0.20.04.1",
        "3.20250211.0ubuntu0.20.04.1",
        "3.20250512.0ubuntu0.20.04.1"
      ],
      "ecosystem": "deb",
      "fixed_version": "3.20250812.0ubuntu0.20.04.1+esm1",
      "provider_record_id": "UBUNTU-CVE-2025-22839"
    },
    {
      "name": "intel-microcode",
      "distro": "ubuntu",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.20250812.0ubuntu0.22.04.1"
            }
          ]
        }
      ],
      "release": "22.04",
      "versions": [
        "3.20210608.2ubuntu1",
        "3.20220510.0ubuntu0.22.04.1",
        "3.20220809.0ubuntu0.22.04.1",
        "3.20230214.0ubuntu0.22.04.1",
        "3.20230808.0ubuntu0.22.04.1",
        "3.20231114.0ubuntu0.22.04.1",
        "3.20240514.0ubuntu0.22.04.1",
        "3.20240813.0ubuntu0.22.04.2",
        "3.20240910.0ubuntu0.22.04.1",
        "3.20241112.0ubuntu0.22.04.1",
        "3.20250211.0ubuntu0.22.04.1",
        "3.20250512.0ubuntu0.22.04.1"
      ],
      "ecosystem": "deb",
      "fixed_version": "3.20250812.0ubuntu0.22.04.1",
      "provider_record_id": "UBUNTU-CVE-2025-22839"
    },
    {
      "name": "intel-microcode",
      "distro": "ubuntu",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.20250812.0ubuntu0.24.04.1"
            }
          ]
        }
      ],
      "release": "24.04",
      "versions": [
        "3.20230808.1",
        "3.20231114.0ubuntu1",
        "3.20231114.1",
        "3.20240312.1",
        "3.20240312.1build1",
        "3.20240514.0ubuntu0.24.04.1",
        "3.20240813.0ubuntu0.24.04.2",
        "3.20240910.0ubuntu0.24.04.1",
        "3.20241112.0ubuntu0.24.04.1",
        "3.20250211.0ubuntu0.24.04.1",
        "3.20250512.0ubuntu0.24.04.1"
      ],
      "ecosystem": "deb",
      "fixed_version": "3.20250812.0ubuntu0.24.04.1",
      "provider_record_id": "UBUNTU-CVE-2025-22839"
    },
    {
      "name": "intel-microcode",
      "distro": "ubuntu",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.20250812.0ubuntu0.25.10.1"
            }
          ]
        }
      ],
      "release": "25.10",
      "versions": [
        "3.20250211.1ubuntu1",
        "3.20250512.1ubuntu1"
      ],
      "ecosystem": "deb",
      "fixed_version": "3.20250812.0ubuntu0.25.10.1",
      "provider_record_id": "UBUNTU-CVE-2025-22839"
    }
  ]
}

[Debian bug #1110983]

OpenFactory catalog packages

Matching against OpenFactory catalog package versions is in progress.

[Debian 12 (Bookworm)]

  • [intel-microcode]Unknown
    Details (1)

    • 3.20251111.1~deb12u1 · amd64 · bookworm

      Fixed · Fixed: 3.20250812.1~deb12u1

      usn · intel-microcode · debian · bookworm; usn · intel-microcode · debian · 12

[Debian 13 (Trixie)]

  • [intel-microcode]Unknown
    Details (1)

    • 3.20251111.1~deb13u1 · amd64 · trixie

      Fixed · Fixed: 3.20250812.1~deb13u1

      usn · intel-microcode · debian · 13

Observed:

References

[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [SUSE security advisories and VEX] · [Ubuntu Security Notices (USN)]