← Back to CVEs

CVE-2025-64720

HIGH

7.1

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, 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.

CVE Details

CVSS v3.1 Score7.1

SeverityHIGH

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionREQUIRED

Published11/25/2025

Last Modified11/26/2025

Sourcenvd

Honeypot Sightings0

Affected Products

libpng:libpng

Weaknesses (CWE)

CWE-125

References

https://github.com/pnggroup/libpng/commit/08da33b4c88cfcd36e5a706558a8d7e0e4773643(security-advisories@github.com)

https://github.com/pnggroup/libpng/issues/686(security-advisories@github.com)

https://github.com/pnggroup/libpng/pull/751(security-advisories@github.com)

https://github.com/pnggroup/libpng/security/advisories/GHSA-hfc7-ph9c-wcww(security-advisories@github.com)

https://github.com/pnggroup/libpng/security/advisories/GHSA-hfc7-ph9c-wcww(134c704f-9b21-4f2e-91b3-4a467353bcc0)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.