{
  "cveId": "CVE-2026-3950",
  "url": "https://patchblox.com/security/cve/CVE-2026-3950",
  "summary": "CVE-2026-3950 is fixed in 20 products on 1 platform, first by DEBIAN-CVE-2026-3950, released March 11, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "libheif: A vulnerability was identified in strukturag libheif up to 1.21.2",
  "description": "A vulnerability was identified in strukturag libheif up to 1.21.2. This impacts the function Track::load of the file libheif/sequences/track.cc of the component stsz/stts. The manipulation leads to out-of-bounds read. The attack needs to be performed locally. The exploit is publicly available and might be used. Applying a patch is the recommended action to fix this issue. The patch available is inofficial and not approved yet.",
  "published": "2026-03-11T13:16:00Z",
  "severity": "Medium",
  "epss": 0.00155,
  "epssPercentile": 0.04611,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "heif-gdk-pixbuf",
      "release": "Ubuntu 25.10 (questing)",
      "fixedVersion": "1.20.2-1ubuntu0.4",
      "fix": "heif-gdk-pixbuf 1.20.2-1ubuntu0.4",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-questing-heif-gdk-pixbuf-1.20.2-1ubuntu0.4",
      "released": "2026-06-24T14:07:44Z"
    },
    {
      "platform": "linux",
      "product": "heif-gdk-pixbuf",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "1.21.2-3ubuntu0.1",
      "fix": "heif-gdk-pixbuf 1.21.2-3ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-heif-gdk-pixbuf-1.21.2-3ubuntu0.1",
      "released": "2026-07-21T15:17:00Z"
    },
    {
      "platform": "linux",
      "product": "heif-thumbnailer",
      "release": "Ubuntu 25.10 (questing)",
      "fixedVersion": "1.20.2-1ubuntu0.4",
      "fix": "heif-thumbnailer 1.20.2-1ubuntu0.4",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-questing-heif-thumbnailer-1.20.2-1ubuntu0.4",
      "released": "2026-06-24T14:07:44Z"
    },
    {
      "platform": "linux",
      "product": "heif-thumbnailer",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "1.21.2-3ubuntu0.1",
      "fix": "heif-thumbnailer 1.21.2-3ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-heif-thumbnailer-1.21.2-3ubuntu0.1",
      "released": "2026-07-21T15:17:00Z"
    },
    {
      "platform": "linux",
      "product": "heif-view",
      "release": "Ubuntu 25.10 (questing)",
      "fixedVersion": "1.20.2-1ubuntu0.4",
      "fix": "heif-view 1.20.2-1ubuntu0.4",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-questing-heif-view-1.20.2-1ubuntu0.4",
      "released": "2026-06-24T14:07:44Z"
    },
    {
      "platform": "linux",
      "product": "heif-view",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "1.21.2-3ubuntu0.1",
      "fix": "heif-view 1.21.2-3ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-heif-view-1.21.2-3ubuntu0.1",
      "released": "2026-07-21T15:17:00Z"
    },
    {
      "platform": "linux",
      "product": "libheif",
      "release": "Debian 14",
      "fixedVersion": "1.23.1-1",
      "fix": "DEBIAN-CVE-2026-3950",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-3950",
      "released": "2026-03-11T20:16:22Z"
    },
    {
      "platform": "linux",
      "product": "libheif",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "1.23.0-160000.1.1",
      "fix": "OPENSUSE-SU-2026:20974-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-20974-1",
      "released": "2026-06-17T08:37:36Z"
    },
    {
      "platform": "linux",
      "product": "libheif",
      "release": "sles 15.7",
      "fixedVersion": "1.23.0-150700.3.15.1",
      "fix": "SUSE-SU-2026:2622-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-2622-1",
      "released": "2026-06-24T11:55:36Z"
    },
    {
      "platform": "linux",
      "product": "libheif",
      "release": "sles 16.0",
      "fixedVersion": "1.23.0-160000.1.1",
      "fix": "SUSE-SU-2026:22153-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-22153-1",
      "released": "2026-06-17T08:36:56Z"
    },
    {
      "platform": "linux",
      "product": "libheif-examples",
      "release": "Ubuntu 25.10 (questing)",
      "fixedVersion": "1.20.2-1ubuntu0.4",
      "fix": "libheif-examples 1.20.2-1ubuntu0.4",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-questing-libheif-examples-1.20.2-1ubuntu0.4",
      "released": "2026-06-24T14:07:44Z"
    },
    {
      "platform": "linux",
      "product": "libheif-examples",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "1.21.2-3ubuntu0.1",
      "fix": "libheif-examples 1.21.2-3ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-libheif-examples-1.21.2-3ubuntu0.1",
      "released": "2026-07-21T15:17:00Z"
    },
    {
      "platform": "linux",
      "product": "libheif-plugin-aomdec",
      "release": "Ubuntu 25.10 (questing)",
      "fixedVersion": "1.20.2-1ubuntu0.4",
      "fix": "libheif-plugin-aomdec 1.20.2-1ubuntu0.4",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-questing-libheif-plugin-aomdec-1.20.2-1ubuntu0.4",
      "released": "2026-06-24T14:07:44Z"
    },
    {
      "platform": "linux",
      "product": "libheif-plugin-aomdec",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "1.21.2-3ubuntu0.1",
      "fix": "libheif-plugin-aomdec 1.21.2-3ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-libheif-plugin-aomdec-1.21.2-3ubuntu0.1",
      "released": "2026-07-21T15:17:00Z"
    },
    {
      "platform": "linux",
      "product": "libheif-plugin-aomenc",
      "release": "Ubuntu 25.10 (questing)",
      "fixedVersion": "1.20.2-1ubuntu0.4",
      "fix": "libheif-plugin-aomenc 1.20.2-1ubuntu0.4",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-questing-libheif-plugin-aomenc-1.20.2-1ubuntu0.4",
      "released": "2026-06-24T14:07:44Z"
    },
    {
      "platform": "linux",
      "product": "libheif-plugin-aomenc",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "1.21.2-3ubuntu0.1",
      "fix": "libheif-plugin-aomenc 1.21.2-3ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-libheif-plugin-aomenc-1.21.2-3ubuntu0.1",
      "released": "2026-07-21T15:17:00Z"
    },
    {
      "platform": "linux",
      "product": "libheif-plugin-dav1d",
      "release": "Ubuntu 25.10 (questing)",
      "fixedVersion": "1.20.2-1ubuntu0.4",
      "fix": "libheif-plugin-dav1d 1.20.2-1ubuntu0.4",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-questing-libheif-plugin-dav1d-1.20.2-1ubuntu0.4",
      "released": "2026-06-24T14:07:44Z"
    },
    {
      "platform": "linux",
      "product": "libheif-plugin-dav1d",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "1.21.2-3ubuntu0.1",
      "fix": "libheif-plugin-dav1d 1.21.2-3ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-libheif-plugin-dav1d-1.21.2-3ubuntu0.1",
      "released": "2026-07-21T15:17:00Z"
    },
    {
      "platform": "linux",
      "product": "libheif-plugin-ffmpegdec",
      "release": "Ubuntu 25.10 (questing)",
      "fixedVersion": "1.20.2-1ubuntu0.4",
      "fix": "libheif-plugin-ffmpegdec 1.20.2-1ubuntu0.4",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-questing-libheif-plugin-ffmpegdec-1.20.2-1ubuntu0.4",
      "released": "2026-06-24T14:07:44Z"
    },
    {
      "platform": "linux",
      "product": "libheif-plugin-ffmpegdec",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "1.21.2-3ubuntu0.1",
      "fix": "libheif-plugin-ffmpegdec 1.21.2-3ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-libheif-plugin-ffmpegdec-1.21.2-3ubuntu0.1",
      "released": "2026-07-21T15:17:00Z"
    },
    {
      "platform": "linux",
      "product": "libheif-plugin-j2kdec",
      "release": "Ubuntu 25.10 (questing)",
      "fixedVersion": "1.20.2-1ubuntu0.4",
      "fix": "libheif-plugin-j2kdec 1.20.2-1ubuntu0.4",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-questing-libheif-plugin-j2kdec-1.20.2-1ubuntu0.4",
      "released": "2026-06-24T14:07:44Z"
    },
    {
      "platform": "linux",
      "product": "libheif-plugin-j2kdec",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "1.21.2-3ubuntu0.1",
      "fix": "libheif-plugin-j2kdec 1.21.2-3ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-libheif-plugin-j2kdec-1.21.2-3ubuntu0.1",
      "released": "2026-07-21T15:17:00Z"
    },
    {
      "platform": "linux",
      "product": "libheif-plugin-j2kenc",
      "release": "Ubuntu 25.10 (questing)",
      "fixedVersion": "1.20.2-1ubuntu0.4",
      "fix": "libheif-plugin-j2kenc 1.20.2-1ubuntu0.4",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-questing-libheif-plugin-j2kenc-1.20.2-1ubuntu0.4",
      "released": "2026-06-24T14:07:44Z"
    },
    {
      "platform": "linux",
      "product": "libheif-plugin-j2kenc",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "1.21.2-3ubuntu0.1",
      "fix": "libheif-plugin-j2kenc 1.21.2-3ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-libheif-plugin-j2kenc-1.21.2-3ubuntu0.1",
      "released": "2026-07-21T15:17:00Z"
    },
    {
      "platform": "linux",
      "product": "libheif-plugin-jpegdec",
      "release": "Ubuntu 25.10 (questing)",
      "fixedVersion": "1.20.2-1ubuntu0.4",
      "fix": "libheif-plugin-jpegdec 1.20.2-1ubuntu0.4",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-questing-libheif-plugin-jpegdec-1.20.2-1ubuntu0.4",
      "released": "2026-06-24T14:07:44Z"
    },
    {
      "platform": "linux",
      "product": "libheif-plugin-jpegdec",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "1.21.2-3ubuntu0.1",
      "fix": "libheif-plugin-jpegdec 1.21.2-3ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-libheif-plugin-jpegdec-1.21.2-3ubuntu0.1",
      "released": "2026-07-21T15:17:00Z"
    },
    {
      "platform": "linux",
      "product": "libheif-plugin-jpegenc",
      "release": "Ubuntu 25.10 (questing)",
      "fixedVersion": "1.20.2-1ubuntu0.4",
      "fix": "libheif-plugin-jpegenc 1.20.2-1ubuntu0.4",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-questing-libheif-plugin-jpegenc-1.20.2-1ubuntu0.4",
      "released": "2026-06-24T14:07:44Z"
    },
    {
      "platform": "linux",
      "product": "libheif-plugin-jpegenc",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "1.21.2-3ubuntu0.1",
      "fix": "libheif-plugin-jpegenc 1.21.2-3ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-libheif-plugin-jpegenc-1.21.2-3ubuntu0.1",
      "released": "2026-07-21T15:17:00Z"
    },
    {
      "platform": "linux",
      "product": "libheif-plugin-kvazaar",
      "release": "Ubuntu 25.10 (questing)",
      "fixedVersion": "1.20.2-1ubuntu0.4",
      "fix": "libheif-plugin-kvazaar 1.20.2-1ubuntu0.4",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-questing-libheif-plugin-kvazaar-1.20.2-1ubuntu0.4",
      "released": "2026-06-24T14:07:44Z"
    },
    {
      "platform": "linux",
      "product": "libheif-plugin-kvazaar",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "1.21.2-3ubuntu0.1",
      "fix": "libheif-plugin-kvazaar 1.21.2-3ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-libheif-plugin-kvazaar-1.21.2-3ubuntu0.1",
      "released": "2026-07-21T15:17:00Z"
    },
    {
      "platform": "linux",
      "product": "libheif-plugin-libde265",
      "release": "Ubuntu 25.10 (questing)",
      "fixedVersion": "1.20.2-1ubuntu0.4",
      "fix": "libheif-plugin-libde265 1.20.2-1ubuntu0.4",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-questing-libheif-plugin-libde265-1.20.2-1ubuntu0.4",
      "released": "2026-06-24T14:07:44Z"
    },
    {
      "platform": "linux",
      "product": "libheif-plugin-libde265",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "1.21.2-3ubuntu0.1",
      "fix": "libheif-plugin-libde265 1.21.2-3ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-libheif-plugin-libde265-1.21.2-3ubuntu0.1",
      "released": "2026-07-21T15:17:00Z"
    },
    {
      "platform": "linux",
      "product": "libheif-plugin-rav1e",
      "release": "Ubuntu 25.10 (questing)",
      "fixedVersion": "1.20.2-1ubuntu0.4",
      "fix": "libheif-plugin-rav1e 1.20.2-1ubuntu0.4",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-questing-libheif-plugin-rav1e-1.20.2-1ubuntu0.4",
      "released": "2026-06-24T14:07:44Z"
    },
    {
      "platform": "linux",
      "product": "libheif-plugin-rav1e",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "1.21.2-3ubuntu0.1",
      "fix": "libheif-plugin-rav1e 1.21.2-3ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-libheif-plugin-rav1e-1.21.2-3ubuntu0.1",
      "released": "2026-07-21T15:17:00Z"
    },
    {
      "platform": "linux",
      "product": "libheif-plugin-svtenc",
      "release": "Ubuntu 25.10 (questing)",
      "fixedVersion": "1.20.2-1ubuntu0.4",
      "fix": "libheif-plugin-svtenc 1.20.2-1ubuntu0.4",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-questing-libheif-plugin-svtenc-1.20.2-1ubuntu0.4",
      "released": "2026-06-24T14:07:44Z"
    },
    {
      "platform": "linux",
      "product": "libheif-plugin-svtenc",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "1.21.2-3ubuntu0.1",
      "fix": "libheif-plugin-svtenc 1.21.2-3ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-libheif-plugin-svtenc-1.21.2-3ubuntu0.1",
      "released": "2026-07-21T15:17:00Z"
    },
    {
      "platform": "linux",
      "product": "libheif-plugin-x265",
      "release": "Ubuntu 25.10 (questing)",
      "fixedVersion": "1.20.2-1ubuntu0.4",
      "fix": "libheif-plugin-x265 1.20.2-1ubuntu0.4",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-questing-libheif-plugin-x265-1.20.2-1ubuntu0.4",
      "released": "2026-06-24T14:07:44Z"
    },
    {
      "platform": "linux",
      "product": "libheif-plugin-x265",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "1.21.2-3ubuntu0.1",
      "fix": "libheif-plugin-x265 1.21.2-3ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-libheif-plugin-x265-1.21.2-3ubuntu0.1",
      "released": "2026-07-21T15:17:00Z"
    },
    {
      "platform": "linux",
      "product": "libheif-plugins-all",
      "release": "Ubuntu 25.10 (questing)",
      "fixedVersion": "1.20.2-1ubuntu0.4",
      "fix": "libheif-plugins-all 1.20.2-1ubuntu0.4",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-questing-libheif-plugins-all-1.20.2-1ubuntu0.4",
      "released": "2026-06-24T14:07:44Z"
    },
    {
      "platform": "linux",
      "product": "libheif-plugins-all",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "1.21.2-3ubuntu0.1",
      "fix": "libheif-plugins-all 1.21.2-3ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-libheif-plugins-all-1.21.2-3ubuntu0.1",
      "released": "2026-07-21T15:17:00Z"
    },
    {
      "platform": "linux",
      "product": "libheif1",
      "release": "Ubuntu 25.10 (questing)",
      "fixedVersion": "1.20.2-1ubuntu0.4",
      "fix": "libheif1 1.20.2-1ubuntu0.4",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-questing-libheif1-1.20.2-1ubuntu0.4",
      "released": "2026-06-24T14:07:44Z"
    },
    {
      "platform": "linux",
      "product": "libheif1",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "1.21.2-3ubuntu0.1",
      "fix": "libheif1 1.21.2-3ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-libheif1-1.21.2-3ubuntu0.1",
      "released": "2026-07-21T15:17:00Z"
    }
  ],
  "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"
  }
}