{
  "fix": "ELSA-2026-500239",
  "url": "https://patchblox.com/security/fix/linux/elsa-2026-500239",
  "summary": "ELSA-2026-500239, released September 16, 2026, fixes 14 CVEs in microcode_ctl (version 4:20260812-1.0.2.el9_8). None of them is reported as exploited. Patch Radar priority: High.",
  "platform": "linux",
  "type": "advisory",
  "title": "microcode_ctl security update",
  "released": "2026-09-16T00:00:00Z",
  "priority": "High",
  "priorityTier": 3,
  "priorityReason": "Closes CVE-2026-20715, high severity",
  "supported": true,
  "cveCount": 14,
  "exploitedCveCount": 0,
  "kevCveCount": 0,
  "ransomwareCveCount": 0,
  "maxEpss": 0.00434,
  "maxCvss": 7.5,
  "vendorAdvisory": "https://linux.oracle.com/errata/ELSA-2026-500239.html",
  "appliesTo": [
    {
      "product": "microcode_ctl",
      "productUrl": "https://patchblox.com/security/product/linux/microcode-ctl",
      "release": "ol 10",
      "fixedVersion": "4:20260812-1.0.2.el9_8",
      "supported": true
    },
    {
      "product": "microcode_ctl",
      "productUrl": "https://patchblox.com/security/product/linux/microcode-ctl",
      "release": "ol 8",
      "fixedVersion": "4:20260812-1.0.2.el9_8",
      "supported": true
    },
    {
      "product": "microcode_ctl",
      "productUrl": "https://patchblox.com/security/product/linux/microcode-ctl",
      "release": "ol 9",
      "fixedVersion": "4:20260812-1.0.2.el9_8",
      "supported": true
    }
  ],
  "cves": [
    {
      "cveId": "CVE-2026-20715",
      "url": "https://patchblox.com/security/cve/CVE-2026-20715",
      "title": "microcode_ctl: [4:20260812-1.0.3]\n- disable late update for 06-ad-01\n- add support for UEK7/UEK8 and ueknext kernels\n- don\u0027t bother...",
      "priority": "High",
      "severity": "IMPORTANT",
      "cvss": 7.5,
      "epss": 0.00434,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-20885",
      "url": "https://patchblox.com/security/cve/CVE-2026-20885",
      "title": "microcode_ctl: [4:20260812-1.0.3]\n- disable late update for 06-ad-01\n- add support for UEK7/UEK8 and ueknext kernels\n- don\u0027t bother...",
      "priority": "High",
      "severity": "IMPORTANT",
      "cvss": 7.2,
      "epss": 0.00154,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-20898",
      "url": "https://patchblox.com/security/cve/CVE-2026-20898",
      "title": "microcode_ctl: [4:20260812-1.0.3]\n- disable late update for 06-ad-01\n- add support for UEK7/UEK8 and ueknext kernels\n- don\u0027t bother...",
      "priority": "High",
      "severity": "IMPORTANT",
      "cvss": 7.2,
      "epss": 0.00128,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-20713",
      "url": "https://patchblox.com/security/cve/CVE-2026-20713",
      "title": "intel-microcode: Always-incorrect control flow implementation in some firmware for some Intel(R) Xeon(R) processors may allow an escal...",
      "priority": "High",
      "severity": "high",
      "cvss": 7.5,
      "epss": 0.00104,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-20708",
      "url": "https://patchblox.com/security/cve/CVE-2026-20708",
      "title": "microcode_ctl: [4:20260812-1.0.3]\n- disable late update for 06-ad-01\n- add support for UEK7/UEK8 and ueknext kernels\n- don\u0027t bother...",
      "priority": "Routine",
      "severity": "IMPORTANT",
      "cvss": 4.4,
      "epss": 0.00317,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-20712",
      "url": "https://patchblox.com/security/cve/CVE-2026-20712",
      "title": "microcode_ctl: [4:20260812-1.0.3]\n- disable late update for 06-ad-01\n- add support for UEK7/UEK8 and ueknext kernels\n- don\u0027t bother...",
      "priority": "Routine",
      "severity": "IMPORTANT",
      "cvss": 6,
      "epss": 0.0016,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-20734",
      "url": "https://patchblox.com/security/cve/CVE-2026-20734",
      "title": "microcode_ctl: [4:20260812-1.0.3]\n- disable late update for 06-ad-01\n- add support for UEK7/UEK8 and ueknext kernels\n- don\u0027t bother...",
      "priority": "Routine",
      "severity": "IMPORTANT",
      "cvss": 4.4,
      "epss": 0.0016,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-20705",
      "url": "https://patchblox.com/security/cve/CVE-2026-20705",
      "title": "microcode_ctl: [4:20260812-1.0.3]\n- disable late update for 06-ad-01\n- add support for UEK7/UEK8 and ueknext kernels\n- don\u0027t bother...",
      "priority": "Routine",
      "severity": "IMPORTANT",
      "cvss": 5.3,
      "epss": 0.00133,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-20775",
      "url": "https://patchblox.com/security/cve/CVE-2026-20775",
      "title": "microcode_ctl: [4:20260812-1.0.3]\n- disable late update for 06-ad-01\n- add support for UEK7/UEK8 and ueknext kernels\n- don\u0027t bother...",
      "priority": "Routine",
      "severity": "IMPORTANT",
      "cvss": 5.3,
      "epss": 0.00125,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-20917",
      "url": "https://patchblox.com/security/cve/CVE-2026-20917",
      "title": "ucode-intel: This update for ucode-intel fixes the following issues:\n\n- Intel CPU Microcode was updated to the 20260812 release (b...",
      "priority": "Routine",
      "severity": "IMPORTANT",
      "cvss": 5.3,
      "epss": 0.0011,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-20760",
      "url": "https://patchblox.com/security/cve/CVE-2026-20760",
      "title": "intel-microcode: Improper handling of overlap between protected memory ranges in some microcode for some Intel(R) Processors within Ri...",
      "priority": "Routine",
      "severity": "IMPORTANT",
      "cvss": 5.5,
      "epss": 0.00103,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-20901",
      "url": "https://patchblox.com/security/cve/CVE-2026-20901",
      "title": "intel-microcode: Improper input validation for some Intel(R) Xeon(R) processors within firmware may allow an escalation of privilege",
      "priority": "Routine",
      "severity": "medium",
      "cvss": 5.3,
      "epss": 0.00097,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-31356",
      "url": "https://patchblox.com/security/cve/CVE-2025-31356",
      "title": "microcode_ctl: [4:20260812-1.0.3]\n- disable late update for 06-ad-01\n- add support for UEK7/UEK8 and ueknext kernels\n- don\u0027t bother...",
      "priority": "Routine",
      "severity": "IMPORTANT",
      "cvss": 6.1,
      "epss": 0.00072,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-20707",
      "url": "https://patchblox.com/security/cve/CVE-2026-20707",
      "title": "intel-microcode: Hardware logic contains race conditions for some 3rd Gen Intel(R) Xeon(R) Scalable Processors within Ring 3: unprivil...",
      "priority": "Routine",
      "severity": "medium",
      "cvss": 5.6,
      "epss": 0.00071,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "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"
  }
}