CVE-2025-64505 - LIBPNG is vulnerable to a heap buffer overflow in `png_do_quantize` via malformed palette index

CVE-2025-64505 - LIBPNG is vulnerable to a heap buffer overflow in `png_do_quantize` via malformed palette index

https://cvefeed.io/rssfeed/latest.atom / Tue, 11/25/2025 - 01:50
CVE ID : CVE-2025-64505
Published : Nov. 25, 2025, 12:15 a.m. | 34 minutes ago
Description : 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.
Severity: 6.1 | MEDIUM
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