{
  "fix": "RHSA-2021:3027",
  "url": "https://patchblox.com/security/fix/linux/rhsa-2021-3027",
  "summary": "RHSA-2021:3027, released August 9, 2021, fixes 9 CVEs in microcode_ctl (version 4:20210216-1.20210608.1.el8_4). None of them is reported as exploited. Patch Radar priority: High.",
  "platform": "linux",
  "type": "advisory",
  "title": "microcode_ctl security update",
  "released": "2021-08-09T00:00:00Z",
  "priority": "High",
  "priorityTier": 3,
  "priorityReason": "Closes CVE-2020-24489, high severity",
  "supported": true,
  "cveCount": 9,
  "exploitedCveCount": 0,
  "kevCveCount": 0,
  "ransomwareCveCount": 0,
  "maxEpss": 0.00564,
  "maxCvss": 8.8,
  "vendorAdvisory": "https://access.redhat.com/errata/RHSA-2021:3027",
  "appliesTo": [
    {
      "product": "microcode_ctl",
      "productUrl": "https://patchblox.com/security/product/linux/microcode-ctl",
      "release": "RHEL 8",
      "fixedVersion": "4:20210216-1.20210608.1.el8_4",
      "supported": true
    }
  ],
  "cves": [
    {
      "cveId": "CVE-2020-24489",
      "url": "https://patchblox.com/security/cve/CVE-2020-24489",
      "title": "microcode_ctl: The microcode_ctl packages provide microcode updates for Intel.\n\nSecurity Fix(es):\n\n* hw: Special Register Buffer Dat...",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.8,
      "epss": 0.00352,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-0549",
      "url": "https://patchblox.com/security/cve/CVE-2020-0549",
      "title": "microcode_ctl: The microcode_ctl packages provide microcode updates for Intel.\n\nSecurity Fix(es):\n\n* hw: Special Register Buffer Dat...",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 6.5,
      "epss": 0.00564,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-0543",
      "url": "https://patchblox.com/security/cve/CVE-2020-0543",
      "title": "microcode_ctl: The microcode_ctl packages provide microcode updates for Intel.\n\nSecurity Fix(es):\n\n* hw: Special Register Buffer Dat...",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 6.5,
      "epss": 0.0054,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-0548",
      "url": "https://patchblox.com/security/cve/CVE-2020-0548",
      "title": "microcode_ctl: The microcode_ctl packages provide microcode updates for Intel.\n\nSecurity Fix(es):\n\n* hw: Special Register Buffer Dat...",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 5.5,
      "epss": 0.00521,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-8698",
      "url": "https://patchblox.com/security/cve/CVE-2020-8698",
      "title": "microcode_ctl: The microcode_ctl packages provide microcode updates for Intel.\n\nSecurity Fix(es):\n\n* hw: Special Register Buffer Dat...",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 5.5,
      "epss": 0.00516,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-8696",
      "url": "https://patchblox.com/security/cve/CVE-2020-8696",
      "title": "microcode_ctl: The microcode_ctl packages provide microcode updates for Intel.\n\nSecurity Fix(es):\n\n* hw: Special Register Buffer Dat...",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 5.5,
      "epss": 0.00444,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-8695",
      "url": "https://patchblox.com/security/cve/CVE-2020-8695",
      "title": "docker-stable: This update for docker-stable fixes the following issues:\n\nNote this update contains a already fixed references mostl...",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 5.5,
      "epss": 0.00419,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-24511",
      "url": "https://patchblox.com/security/cve/CVE-2020-24511",
      "title": "microcode_ctl: The microcode_ctl packages provide microcode updates for Intel.\n\nSecurity Fix(es):\n\n* hw: Special Register Buffer Dat...",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 6.5,
      "epss": 0.00399,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-24512",
      "url": "https://patchblox.com/security/cve/CVE-2020-24512",
      "title": "microcode_ctl: The microcode_ctl packages provide microcode updates for Intel.\n\nSecurity Fix(es):\n\n* hw: Special Register Buffer Dat...",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 3.3,
      "epss": 0.00383,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-07T18:46:35Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}