CVE-2025-65018: Libpng

High severity, CVSS 7.1. EPSS: 0.3% chance of exploitation in the next 30 days.

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.

Affected products

• Libpng Libpng: from 1.6.0, before 1.6.51 (fixed in 1.6.51)

Published 2025-11-25. Last modified 2026-06-17.