{
  "cveId": "CVE-2023-43758",
  "url": "https://patchblox.com/security/cve/CVE-2023-43758",
  "summary": "CVE-2023-43758 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2023-43758, released February 12, 2025. It is not reported as exploited. Patch Radar priority: High.",
  "title": "microcode_ctl: The microcode_ctl packages provide microcode updates for Intel and AMD processors.\n\nBug Fix(es) and Enhancement(s):...",
  "description": "The microcode_ctl packages provide microcode updates for Intel and AMD processors.\n\nBug Fix(es) and Enhancement(s):\n\n* [RHEL 9.5.z] Update Intel CPU microcode to the latest version (JIRA:RHEL-76084)\n\n* microcode_ctl: Improper input validation in UEFI firmware [rhel-9.5.z] (JIRA:RHEL-79223)\n\n* microcode_ctl: Improper input validation in UEFI firmware [rhel-9.5.z] (JIRA:RHEL-79224)\n\n* microcode_ctl: Improper input validation in UEFI firmware CseVariableStorageSmm [rhel-9.5.z] (JIRA:RHEL-79225)\n\n* microcode_ctl: Improper input validation in XmlCli feature for UEFI firmware [rhel-9.5.z] (JIRA:RHEL-79237)\n\n* microcode_ctl: Improper input validation in UEFI firmware [rhel-9.5.z] (JIRA:RHEL-79241)",
  "published": "2025-02-12T22:15:30Z",
  "severity": "Important",
  "cvss": 8.2,
  "epss": 0.00277,
  "epssPercentile": 0.203,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "intel-microcode",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "3.20250211.1~deb12u1",
      "fix": "DEBIAN-CVE-2023-43758",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-43758",
      "released": "2025-02-12T22:15:30Z"
    },
    {
      "platform": "linux",
      "product": "intel-microcode",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "3.20250211.1",
      "fix": "DEBIAN-CVE-2023-43758",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-43758",
      "released": "2025-02-12T22:15:30Z"
    },
    {
      "platform": "linux",
      "product": "intel-microcode",
      "release": "Debian 14",
      "fixedVersion": "3.20250211.1",
      "fix": "DEBIAN-CVE-2023-43758",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-43758",
      "released": "2025-02-12T22:15:30Z"
    },
    {
      "platform": "linux",
      "product": "microcode_ctl",
      "release": "RHEL 8",
      "fixedVersion": "4:20250211-1.el8_10",
      "fix": "RHEA-2025:3114",
      "url": "https://patchblox.com/security/fix/linux/rhea-2025-3114",
      "released": "2025-03-24T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "microcode_ctl",
      "release": "RHEL 9",
      "fixedVersion": "4:20240910-1.20250211.1.el9_5",
      "fix": "RHBA-2025:2991",
      "url": "https://patchblox.com/security/fix/linux/rhba-2025-2991",
      "released": "2025-03-18T00:00:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T19:12:23Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}