CVEvulnerability

CVE-2025-64506

6.1 MEDIUM Published 2025-11-25 Modified 2026-10-18 Official page ↗
Status
Analyzed
Published
2025-11-25
Last modified
2026-10-18
Assigner
[email protected]
CVSS 3.1 ([email protected])
6.1 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
Weaknesses
CWE-125

Description

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, a heap buffer over-read vulnerability exists in libpng's png_write_image_8bit function when processing 8-bit images through the simplified write API with convert_to_8bit enabled. The vulnerability affects 8-bit grayscale+alpha, RGB/RGBA, and images with incomplete row data. A conditional guard incorrectly allows 8-bit input to enter code expecting 16-bit input, causing reads up to 2 bytes beyond allocated buffer boundaries. This issue has been patched in version 1.6.51.

Affected configurations

• libpng libpng (>= 1.6.0 < 1.6.51)

Related

Weakness · CWE (1)

  • CWE-125 Out-of-bounds Read weakness

References