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, there is a heap buffer overflow vulnerability in the libpng simplified API function png_image_finish_read when processing 16-bit interlaced PNGs with 8-bit output format. Attacker-crafted interlaced PNG files cause heap writes beyond allocated buffer bounds. This issue has been patched in version 1.6.51.
Fix
Public exploits 2
- Neo-Neo6/CVE-2025-65018-Heap-buffer-overflow-in-libpng-ps4-ps5- PoC on GitHub
- bohemian-miser/CVE-2025-65018_Exploit_Challenge PoC on GitHub
Each line links to the index that lists it, never to exploit code. Exploit-DB's "verified" and a Metasploit rank of good or better count as verified; a PoC-in-GitHub entry is a repository's claim.
Patch, vendor advisory and mitigation references on NVD 4
- https://github.com/pnggroup/libpng/commit/16b5e3823918840aae65c0a6da57c78a5a496a4d Patch
- https://github.com/pnggroup/libpng/commit/218612ddd6b17944e21eda56caf8b4bf7779d1ea Patch
- https://github.com/pnggroup/libpng/security/advisories/GHSA-7wv6-48j4-hj3g Exploit, Vendor Advisory
- https://github.com/pnggroup/libpng/security/advisories/GHSA-7wv6-48j4-hj3g Exploit, Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 7.1 · libpngNVD modified 2026-10-18 20:10
Affected (CPE criteria) 1
cpe:2.3:a:libpng:libpng:*:*:*:*:*:*:*:*
References 7
- https://github.com/pnggroup/libpng/commit/16b5e3823918840aae65c0a6da57c78a5a496a4d Patch
- https://github.com/pnggroup/libpng/commit/218612ddd6b17944e21eda56caf8b4bf7779d1ea Patch
- https://github.com/pnggroup/libpng/issues/755 Exploit, Issue Tracking
- https://github.com/pnggroup/libpng/pull/757 Issue Tracking
- https://github.com/pnggroup/libpng/security/advisories/GHSA-7wv6-48j4-hj3g Exploit, Vendor Advisory
- https://github.com/pnggroup/libpng/issues/755 Exploit, Issue Tracking
- https://github.com/pnggroup/libpng/security/advisories/GHSA-7wv6-48j4-hj3g Exploit, Vendor Advisory