CVE-2025-64720

HIGH EPSS 19.8%
Published Nov 25, 20257mo ago · Modified Jun 17, 20261w ago
7.1 CVSS 3.1
High
Find Similar
Published Nov 25, 2025 7mo ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
7.1
Exploitability
2.8
Impact
4.2
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality Low
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
19.8% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 1

CWE-125 Out-of-bounds Read Memory Safety

Affected Products 1

VendorProductVersionRange
libpnglibpng*≥1.6.0  –  <1.6.51

References 4

  • github.com https://github.com/pnggroup/libpng/commit/08da33b4c88cfcd36e5a706558a8d7e0e4773643
    Patch
  • github.com https://github.com/pnggroup/libpng/issues/686
    ExploitIssue Tracking
  • github.com https://github.com/pnggroup/libpng/pull/751
    Issue TrackingPatch
  • github.com https://github.com/pnggroup/libpng/security/advisories/GHSA-hfc7-ph9c-wcww
    ExploitVendor Advisory

Remediation

  • github.com https://github.com/pnggroup/libpng/commit/08da33b4c88cfcd36e5a706558a8d7e0e4773643
    Patch
  • github.com https://github.com/pnggroup/libpng/pull/751
    Issue TrackingPatch