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, an out-of-bounds read vulnerability exists in png_image_read_composite when processing palette images with PNG_FLAG_OPTIMIZE_ALPHA enabled. The palette compositing code in png_init_read_transformations incorrectly applies background compositing during premultiplication, violating the invariant component ≤ alpha × 257 required by the simplified PNG API. This issue has been patched in version 1.6.51.
Published: 2025-11-25
CVSS: 7.1
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
Download Exploit for CVE-2025-64720 here:
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https://augustaverburg.nl/exploit-100-cve-2023-36796/
https://augustaverburg.nl/exploit-351-cve-2017-0005/
https://augustaverburg.nl/exploit-626-cve-2023-33201/
https://augustaverburg.nl/exploit-605-cve-2022-31676/
https://augustaverburg.nl/exploit-300-cve-2023-5678/