{
  "cveId": "CVE-2026-34085",
  "url": "https://patchblox.com/security/cve/CVE-2026-34085",
  "summary": "CVE-2026-34085 is fixed in fontconfig on 1 platform by DEBIAN-CVE-2026-34085 (version 2.17.1-3), released March 25, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "fontconfig before 2.17.1 has an off-by-one error in allocation during sfnt capability handling, leading to a one-byte out-of-bounds write, and potentially a crash or code execution. This is in FcFontCapabilities in fcfreetype.c.",
  "description": "fontconfig before 2.17.1 has an off-by-one error in allocation during sfnt capability handling, leading to a one-byte out-of-bounds write, and potentially a crash or code execution. This is in FcFontCapabilities in fcfreetype.c.",
  "published": "2026-03-25T17:17:09Z",
  "severity": "Moderate",
  "cvss": 5.9,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
  "cwe": "Off-by-one Error",
  "epss": 0.00129,
  "epssPercentile": 0.02613,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-34085",
  "fixes": [
    {
      "platform": "linux",
      "product": "fontconfig",
      "release": "Debian 14",
      "fixedVersion": "2.17.1-3",
      "fix": "DEBIAN-CVE-2026-34085",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-34085",
      "released": "2026-03-25T17:17:09Z"
    }
  ],
  "noFixYet": [],
  "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"
  }
}