CVE-2025-64506

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.
Configurations

Configuration 1 (hide)

cpe:2.3:a:libpng:libpng:*:*:*:*:*:*:*:*

History

26 Nov 2025, 18:34

Type Values Removed Values Added
First Time Libpng libpng
Libpng
CPE cpe:2.3:a:libpng:libpng:*:*:*:*:*:*:*:*
References () https://github.com/pnggroup/libpng/commit/2bd84c019c300b78e811743fbcddb67c9d9bf821 - () https://github.com/pnggroup/libpng/commit/2bd84c019c300b78e811743fbcddb67c9d9bf821 - Patch
References () https://github.com/pnggroup/libpng/pull/749 - () https://github.com/pnggroup/libpng/pull/749 - Issue Tracking
References () https://github.com/pnggroup/libpng/security/advisories/GHSA-qpr4-xm66-hww6 - () https://github.com/pnggroup/libpng/security/advisories/GHSA-qpr4-xm66-hww6 - Vendor Advisory

25 Nov 2025, 00:15

Type Values Removed Values Added
New CVE

Information

Published : 2025-11-25 00:15

Updated : 2025-11-26 18:34


NVD link : CVE-2025-64506

Mitre link : CVE-2025-64506

CVE.ORG link : CVE-2025-64506


JSON object : View

Products Affected

libpng

  • libpng
CWE
CWE-125

Out-of-bounds Read