CVE-2025-66293

HIGH EPSS 21.1%
Published Dec 3, 20256mo ago · Modified Jun 17, 20261w ago
7.1 CVSS 3.1
High
Find Similar
Published Dec 3, 2025 6mo 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. Prior to 1.6.52, an out-of-bounds read vulnerability in libpng's simplified API allows reading up to 1012 bytes beyond the png_sRGB_base[512] array when processing valid palette PNG images with partial transparency and gamma correction. The PNG files that trigger this vulnerability are valid per the PNG specification; the bug is in libpng's internal state management. Upgrade to libpng 1.6.52 or later.

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
21.1% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 1

CWE-125 Out-of-bounds Read Memory Safety

Affected Products 1

VendorProductVersionRange
libpnglibpng* <1.6.52

References 7

  • openwall.com http://www.openwall.com/lists/oss-security/2025/12/03/6
    Mailing List
  • openwall.com http://www.openwall.com/lists/oss-security/2025/12/03/7
    Mailing List
  • openwall.com http://www.openwall.com/lists/oss-security/2025/12/03/8
    Mailing List
  • github.com https://github.com/pnggroup/libpng/commit/788a624d7387a758ffd5c7ab010f1870dea753a1
    Patch
  • github.com https://github.com/pnggroup/libpng/commit/a05a48b756de63e3234ea6b3b938b8f5f862484a
    Patch
  • github.com https://github.com/pnggroup/libpng/issues/764
    ExploitIssue TrackingPatch
  • github.com https://github.com/pnggroup/libpng/security/advisories/GHSA-9mpm-9pxh-mg4f
    ExploitVendor Advisory

Remediation

  • github.com https://github.com/pnggroup/libpng/commit/788a624d7387a758ffd5c7ab010f1870dea753a1
    Patch
  • github.com https://github.com/pnggroup/libpng/commit/a05a48b756de63e3234ea6b3b938b8f5f862484a
    Patch
  • github.com https://github.com/pnggroup/libpng/issues/764
    ExploitIssue TrackingPatch