{
  "cveId": "CVE-2025-64506",
  "url": "https://patchblox.com/security/cve/CVE-2025-64506",
  "summary": "CVE-2025-64506 is fixed in 15 products on 1 platform, first by libpng-tools 1.6.34-1ubuntu0.18.04.2\u002Besm1, released November 24, 2025. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "LIBPNG is vulnerable to a heap buffer over-read in \u0060png_write_image_8bit\u0060 with grayscale\u002Balpha or RGB/RGBA images",
  "description": "LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. From version 1.6.0 to before 1.6.51, a heap buffer over-read vulnerability exists in libpng\u0027s png_write_image_8bit function when processing 8-bit images through the simplified write API with convert_to_8bit enabled. The vulnerability affects 8-bit grayscale\u002Balpha, RGB/RGBA, and images with incomplete row data. A conditional guard incorrectly allows 8-bit input to enter code expecting 16-bit input, causing reads up to 2 bytes beyond allocated buffer boundaries. This issue has been patched in version 1.6.51.",
  "published": "2025-11-24T16:15:00Z",
  "severity": "Moderate",
  "cvss": 6.1,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H",
  "cwe": "Out-of-bounds Read",
  "epss": 0.0015,
  "epssPercentile": 0.04181,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-64506",
  "fixes": [
    {
      "platform": "linux",
      "product": "firefox",
      "release": "amzn 2023",
      "fixedVersion": "140.5.0-1.amzn2023.0.2",
      "fix": "ALAS2023-2025-1305",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2025-1305",
      "released": "2025-12-08T12:37:00Z"
    },
    {
      "platform": "linux",
      "product": "firefox-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "140.5.0-1.amzn2023.0.2",
      "fix": "ALAS2023-2025-1305",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2025-1305",
      "released": "2025-12-08T12:37:00Z"
    },
    {
      "platform": "linux",
      "product": "firefox-debugsource",
      "release": "amzn 2023",
      "fixedVersion": "140.5.0-1.amzn2023.0.2",
      "fix": "ALAS2023-2025-1305",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2025-1305",
      "released": "2025-12-08T12:37:00Z"
    },
    {
      "platform": "linux",
      "product": "libpng",
      "release": "amzn 2023",
      "fixedVersion": "2:1.6.37-10.amzn2023.0.7",
      "fix": "ALAS2023-2025-1306",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2025-1306",
      "released": "2025-12-08T12:37:00Z"
    },
    {
      "platform": "linux",
      "product": "libpng-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "2:1.6.37-10.amzn2023.0.7",
      "fix": "ALAS2023-2025-1306",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2025-1306",
      "released": "2025-12-08T12:37:00Z"
    },
    {
      "platform": "linux",
      "product": "libpng-debugsource",
      "release": "amzn 2023",
      "fixedVersion": "2:1.6.37-10.amzn2023.0.7",
      "fix": "ALAS2023-2025-1306",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2025-1306",
      "released": "2025-12-08T12:37:00Z"
    },
    {
      "platform": "linux",
      "product": "libpng-devel",
      "release": "amzn 2023",
      "fixedVersion": "2:1.6.37-10.amzn2023.0.7",
      "fix": "ALAS2023-2025-1306",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2025-1306",
      "released": "2025-12-08T12:37:00Z"
    },
    {
      "platform": "linux",
      "product": "libpng-devel-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "2:1.6.37-10.amzn2023.0.7",
      "fix": "ALAS2023-2025-1306",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2025-1306",
      "released": "2025-12-08T12:37:00Z"
    },
    {
      "platform": "linux",
      "product": "libpng-static",
      "release": "amzn 2023",
      "fixedVersion": "2:1.6.37-10.amzn2023.0.7",
      "fix": "ALAS2023-2025-1306",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2025-1306",
      "released": "2025-12-08T12:37:00Z"
    },
    {
      "platform": "linux",
      "product": "libpng-tools",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1.6.34-1ubuntu0.18.04.2\u002Besm1",
      "fix": "libpng-tools 1.6.34-1ubuntu0.18.04.2\u002Besm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-libpng-tools-1.6.34-1ubuntu0.18.04.2-esm1",
      "released": "2025-11-24T16:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libpng-tools",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "1.6.37-2ubuntu0.1~esm1",
      "fix": "libpng-tools 1.6.37-2ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-libpng-tools-1.6.37-2ubuntu0.1-esm1",
      "released": "2025-11-24T16:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libpng-tools",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "1.6.37-3ubuntu0.1",
      "fix": "libpng-tools 1.6.37-3ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-libpng-tools-1.6.37-3ubuntu0.1",
      "released": "2025-11-24T16:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libpng-tools",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "1.6.43-5ubuntu0.1",
      "fix": "libpng-tools 1.6.43-5ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-libpng-tools-1.6.43-5ubuntu0.1",
      "released": "2025-11-24T16:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libpng-tools",
      "release": "Ubuntu 25.10 (questing)",
      "fixedVersion": "1.6.50-1ubuntu0.1",
      "fix": "libpng-tools 1.6.50-1ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-questing-libpng-tools-1.6.50-1ubuntu0.1",
      "released": "2025-11-24T16:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libpng-tools",
      "release": "amzn 2023",
      "fixedVersion": "2:1.6.37-10.amzn2023.0.7",
      "fix": "ALAS2023-2025-1306",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2025-1306",
      "released": "2025-12-08T12:37:00Z"
    },
    {
      "platform": "linux",
      "product": "libpng-tools-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "2:1.6.37-10.amzn2023.0.7",
      "fix": "ALAS2023-2025-1306",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2025-1306",
      "released": "2025-12-08T12:37:00Z"
    },
    {
      "platform": "linux",
      "product": "libpng1.6",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "1.6.39-2\u002Bdeb12u1",
      "fix": "DEBIAN-CVE-2025-64506",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2025-64506",
      "released": "2025-11-25T00:15:47Z"
    },
    {
      "platform": "linux",
      "product": "libpng1.6",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "1.6.48-1\u002Bdeb13u1",
      "fix": "DEBIAN-CVE-2025-64506",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2025-64506",
      "released": "2025-11-25T00:15:47Z"
    },
    {
      "platform": "linux",
      "product": "libpng1.6",
      "release": "Debian 14",
      "fixedVersion": "1.6.51-1",
      "fix": "DEBIAN-CVE-2025-64506",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2025-64506",
      "released": "2025-11-25T00:15:47Z"
    },
    {
      "platform": "linux",
      "product": "libpng16",
      "release": "opensuse-leap 15.6",
      "fixedVersion": "1.6.40-150600.3.3.1",
      "fix": "SUSE-SU-2025:4494-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2025-4494-1",
      "released": "2025-12-19T13:14:13Z"
    },
    {
      "platform": "linux",
      "product": "libpng16",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "1.6.44-160000.3.1",
      "fix": "OPENSUSE-SU-2026:20017-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-20017-1",
      "released": "2026-01-12T11:14:46Z"
    },
    {
      "platform": "linux",
      "product": "libpng16",
      "release": "sles 15.6",
      "fixedVersion": "1.6.40-150600.3.3.1",
      "fix": "SUSE-SU-2025:4494-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2025-4494-1",
      "released": "2025-12-19T13:14:13Z"
    },
    {
      "platform": "linux",
      "product": "libpng16",
      "release": "sles 15.7",
      "fixedVersion": "1.6.40-150600.3.3.1",
      "fix": "SUSE-SU-2025:4494-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2025-4494-1",
      "released": "2025-12-19T13:14:13Z"
    },
    {
      "platform": "linux",
      "product": "libpng16",
      "release": "sles 16.0",
      "fixedVersion": "1.6.44-160000.3.1",
      "fix": "SUSE-SU-2026:20030-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-20030-1",
      "released": "2026-01-12T11:15:01Z"
    },
    {
      "platform": "linux",
      "product": "libpng16-16",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1.6.34-1ubuntu0.18.04.2\u002Besm1",
      "fix": "libpng16-16 1.6.34-1ubuntu0.18.04.2\u002Besm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-libpng16-16-1.6.34-1ubuntu0.18.04.2-esm1",
      "released": "2025-11-24T16:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libpng16-16",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "1.6.37-2ubuntu0.1~esm1",
      "fix": "libpng16-16 1.6.37-2ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-libpng16-16-1.6.37-2ubuntu0.1-esm1",
      "released": "2025-11-24T16:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libpng16-16",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "1.6.37-3ubuntu0.1",
      "fix": "libpng16-16 1.6.37-3ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-libpng16-16-1.6.37-3ubuntu0.1",
      "released": "2025-11-24T16:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libpng16-16t64",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "1.6.43-5ubuntu0.1",
      "fix": "libpng16-16t64 1.6.43-5ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-libpng16-16t64-1.6.43-5ubuntu0.1",
      "released": "2025-11-24T16:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libpng16-16t64",
      "release": "Ubuntu 25.10 (questing)",
      "fixedVersion": "1.6.50-1ubuntu0.1",
      "fix": "libpng16-16t64 1.6.50-1ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-questing-libpng16-16t64-1.6.50-1ubuntu0.1",
      "released": "2025-11-24T16:15:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T19:12:23Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}