{
  "fix": "ALAS2023-2025-1189",
  "url": "https://patchblox.com/security/fix/linux/alas2023-2025-1189",
  "summary": "ALAS2023-2025-1189, released September 10, 2025, fixes 5 CVEs in microcode_ctl (version 2:2.1-53.amzn2023.0.12). None of them is reported as exploited. Patch Radar priority: High.",
  "platform": "linux",
  "type": "advisory",
  "title": "microcode_ctl security update",
  "released": "2025-09-10T05:43:00Z",
  "priority": "High",
  "priorityTier": 3,
  "priorityReason": "Closes CVE-2024-28956, high severity",
  "supported": true,
  "cveCount": 5,
  "exploitedCveCount": 0,
  "kevCveCount": 0,
  "ransomwareCveCount": 0,
  "maxEpss": 0.00426,
  "maxCvss": 7.8,
  "vendorAdvisory": "https://alas.aws.amazon.com/AL2023/ALAS-2025-1189.html",
  "appliesTo": [
    {
      "product": "microcode_ctl",
      "productUrl": "https://patchblox.com/security/product/linux/microcode-ctl",
      "release": "amzn 2023",
      "fixedVersion": "2:2.1-53.amzn2023.0.12",
      "supported": true
    }
  ],
  "cves": [
    {
      "cveId": "CVE-2024-28956",
      "url": "https://patchblox.com/security/cve/CVE-2024-28956",
      "title": "kernel-64kb: The SUSE Linux Enterprise 15 SP6 kernel was updated to receive various security bugfixes.\n\n\nThe following security bu...",
      "priority": "High",
      "severity": "Medium",
      "cvss": 7.8,
      "epss": 0.00426,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2024-45332",
      "url": "https://patchblox.com/security/cve/CVE-2024-45332",
      "title": "ucode-intel: This update for ucode-intel fixes the following issues:\n\nIntel CPU Microcode was updated to the 20250512 release (bsc...",
      "priority": "Routine",
      "severity": "Medium",
      "cvss": 5.6,
      "epss": 0.00266,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-20054",
      "url": "https://patchblox.com/security/cve/CVE-2025-20054",
      "title": "intel-microcode: Uncaught exception in the core management mechanism for some Intel(R)Processors may allow an authenticated user to po...",
      "priority": "Routine",
      "severity": "Medium",
      "epss": 0.0019,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-20103",
      "url": "https://patchblox.com/security/cve/CVE-2025-20103",
      "title": "intel-microcode: Insufficient resource pool in the core management mechanism for someIntel(R) Processors may allow an authenticated us...",
      "priority": "Routine",
      "severity": "Medium",
      "epss": 0.00177,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-20109",
      "url": "https://patchblox.com/security/cve/CVE-2025-20109",
      "title": "intel-microcode: Improper Isolation or Compartmentalization in the stream cache mechanismfor some Intel(R) Processors may allow an aut...",
      "priority": "Routine",
      "severity": "Medium",
      "epss": 0.0015,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-09T13:31:49Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}