CVE-2025-64505 (GCVE-0-2025-64505)
Vulnerability from cvelistv5
Published
2025-11-24 23:38
Modified
2025-11-25 18:55
CWE
Summary
LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. Prior to version 1.6.51, a heap buffer over-read vulnerability exists in libpng's png_do_quantize function when processing PNG files with malformed palette indices. The vulnerability occurs when palette_lookup array bounds are not validated against externally-supplied image data, allowing an attacker to craft a PNG file with out-of-range palette indices that trigger out-of-bounds memory access. This issue has been patched in version 1.6.51.
Impacted products
Vendor Product Version
pnggroup libpng Version: < 1.6.51
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Show details on NVD website


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              "content": {
                "id": "CVE-2025-64505",
                "options": [
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                    "Exploitation": "none"
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                    "Automatable": "no"
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                "role": "CISA Coordinator",
                "timestamp": "2025-11-25T18:55:44.084881Z",
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          "value": "LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. Prior to version 1.6.51, a heap buffer over-read vulnerability exists in libpng\u0027s png_do_quantize function when processing PNG files with malformed palette indices. The vulnerability occurs when palette_lookup array bounds are not validated against externally-supplied image data, allowing an attacker to craft a PNG file with out-of-range palette indices that trigger out-of-bounds memory access. This issue has been patched in version 1.6.51."
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            "baseScore": 6.1,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H",
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      "problemTypes": [
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          "descriptions": [
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      "providerMetadata": {
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        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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      "references": [
        {
          "name": "https://github.com/pnggroup/libpng/security/advisories/GHSA-4952-h5wq-4m42",
          "tags": [
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          "url": "https://github.com/pnggroup/libpng/security/advisories/GHSA-4952-h5wq-4m42"
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          "name": "https://github.com/pnggroup/libpng/pull/748",
          "tags": [
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    "dateReserved": "2025-11-05T19:12:25.104Z",
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    "state": "PUBLISHED"
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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
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  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.


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