{
  "fix": "libx11-data 2:1.6.4-3ubuntu0.4\u002Besm3",
  "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-libx11-data-2-1.6.4-3ubuntu0.4-esm3",
  "summary": "libx11-data 2:1.6.4-3ubuntu0.4\u002Besm3, released October 13, 2026, fixes 4 CVEs in libx11-data. None of them is reported as exploited. Patch Radar priority: High. The product is no longer supported.",
  "platform": "linux",
  "type": "package",
  "title": "libx11-data 2:1.6.4-3ubuntu0.4\u002Besm3 for Ubuntu 18.04.6 LTS (bionic)",
  "released": "2026-10-13T23:28:48Z",
  "priority": "High",
  "priorityTier": 3,
  "priorityReason": "Closes CVE-2026-88806, high severity",
  "supported": false,
  "cveCount": 4,
  "exploitedCveCount": 0,
  "kevCveCount": 0,
  "ransomwareCveCount": 0,
  "maxEpss": 0.00213,
  "maxCvss": 7.5,
  "appliesTo": [
    {
      "product": "libx11-data",
      "productUrl": "https://patchblox.com/security/product/linux/libx11-data",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "2:1.6.4-3ubuntu0.4\u002Besm3",
      "supported": true
    }
  ],
  "cves": [
    {
      "cveId": "CVE-2026-88806",
      "url": "https://patchblox.com/security/cve/CVE-2026-88806",
      "title": "libX11 XkbGetMap Reply Heap-based Buffer Overflow",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.5,
      "epss": 0.00202,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-94283",
      "url": "https://patchblox.com/security/cve/CVE-2026-94283",
      "title": "Out-of-bounds read vulnerability in libX11\u0027s XIM (X Input Method) attribute parser",
      "priority": "Routine",
      "severity": "Moderate",
      "cvss": 6.5,
      "epss": 0.00213,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-94285",
      "url": "https://patchblox.com/security/cve/CVE-2026-94285",
      "title": "Out-of-bounds read in libX11\u0027s byte-oriented codeset parser",
      "priority": "Routine",
      "severity": "Moderate",
      "cvss": 5.1,
      "epss": 0.00147,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-94284",
      "url": "https://patchblox.com/security/cve/CVE-2026-94284",
      "title": "Out-of-bounds read vulnerability in libX11\u0027s XIM trigger-keyregistration parser.registration parser",
      "priority": "Routine",
      "severity": "Moderate",
      "cvss": 5.5,
      "epss": 0.00132,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-12T07:53:35Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}