{
  "cveId": "CVE-2026-96611",
  "url": "https://patchblox.com/security/cve/CVE-2026-96611",
  "summary": "CVE-2026-96611 is fixed in ffmpeg on 1 platform, first by DEBIAN-CVE-2026-96611, released September 24, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "ffmpeg: FFmpeg before 9.0 has a signed integer overflow in libavformat/mov.c",
  "description": "FFmpeg before 9.0 has a signed integer overflow in libavformat/mov.c. In mov_read_ispe(), uint32_t width/height values from a crafted HEIF ispe box are stored into signed int fields without bounds checking, allowing values exceeding INT_MAX to become negative. In read_image_grid(), accumulating these values causes signed integer overflow (undefined behavior per C17 section 6.5), which on x86 wraps to a small positive value, bypassing downstream validity checks.",
  "published": "2026-09-23T15:17:34Z",
  "severity": "high",
  "cvss": 7.8,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
  "epss": 0.00108,
  "epssPercentile": 0.01196,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "ffmpeg",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "7:7.1.5-0\u002Bdeb13u1",
      "fix": "DEBIAN-CVE-2026-96611",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-96611",
      "released": "2026-09-24T19:30:44Z"
    },
    {
      "platform": "linux",
      "product": "ffmpeg",
      "release": "Debian 14",
      "fixedVersion": "7:8.1.2-1",
      "fix": "DEBIAN-CVE-2026-96611",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-96611",
      "released": "2026-09-24T19:30:44Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T19:38:12Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}