{
  "cveId": "CVE-2026-20901",
  "url": "https://patchblox.com/security/cve/CVE-2026-20901",
  "summary": "CVE-2026-20901 is fixed in 3 products on 1 platform, first by DEBIAN-CVE-2026-20901, released August 11, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "intel-microcode: Improper input validation for some Intel(R) Xeon(R) processors within firmware may allow an escalation of privilege",
  "description": "Improper input validation for some Intel(R) Xeon(R) processors within firmware may allow an escalation of privilege. Startup code and smm adversary with a privileged user combined with a high complexity attack may enable data alteration. This result may potentially occur via local access when attack requirements are present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (none), integrity (none) and availability (none) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (high) and availability (none) impacts.",
  "published": "2026-08-11T18:17:24Z",
  "severity": "medium",
  "cvss": 5.3,
  "cvssVector": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:H/A:N",
  "epss": 0.00097,
  "epssPercentile": 0.00722,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "intel-microcode",
      "release": "Debian 14",
      "fixedVersion": "3.20260925.1",
      "fix": "DEBIAN-CVE-2026-20901",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-20901",
      "released": "2026-08-11T18:17:24Z"
    },
    {
      "platform": "linux",
      "product": "microcode_ctl",
      "release": "amzn 2023",
      "fixedVersion": "2:2.1-53.amzn2023.0.16",
      "fix": "ALAS2023-2026-2080",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-2080",
      "released": "2026-08-31T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "microcode_ctl",
      "release": "ol 10",
      "fixedVersion": "4:20260812-1.0.2.el9_8",
      "fix": "ELSA-2026-500239",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-500239",
      "released": "2026-09-16T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "microcode_ctl",
      "release": "ol 8",
      "fixedVersion": "4:20260812-1.0.2.el9_8",
      "fix": "ELSA-2026-500239",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-500239",
      "released": "2026-09-16T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "microcode_ctl",
      "release": "ol 9",
      "fixedVersion": "4:20260812-1.0.2.el9_8",
      "fix": "ELSA-2026-500239",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-500239",
      "released": "2026-09-16T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "ucode-intel",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "20260812-160000.1.1",
      "fix": "OPENSUSE-SU-2026:21736-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-21736-1",
      "released": "2026-09-02T09:34:17Z"
    },
    {
      "platform": "linux",
      "product": "ucode-intel",
      "release": "sles 15.6",
      "fixedVersion": "20260812-150200.68.1",
      "fix": "SUSE-SU-2026:4025-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-4025-1",
      "released": "2026-09-07T07:43:47Z"
    },
    {
      "platform": "linux",
      "product": "ucode-intel",
      "release": "sles 15.7",
      "fixedVersion": "20260812-150200.68.1",
      "fix": "SUSE-SU-2026:4025-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-4025-1",
      "released": "2026-09-07T07:43:47Z"
    },
    {
      "platform": "linux",
      "product": "ucode-intel",
      "release": "sles 16.0",
      "fixedVersion": "20260812-160000.1.1",
      "fix": "SUSE-SU-2026:23602-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-23602-1",
      "released": "2026-09-21T08:31:07Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T06:59:42Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}