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CVE-2025-65018

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Date: November 24, 2025

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, there is a heap buffer overflow vulnerability in the libpng simplified API function png_image_finish_read when processing 16-bit interlaced PNGs with 8-bit output format. Attacker-crafted interlaced PNG files cause heap writes beyond allocated buffer bounds. This issue has been patched in version 1.6.51.

Severity Score

Related Resources (7)

https://github.com/pnggroup/libpng/pull/757
https://github.com/pnggroup/libpng/commit/16b5e3823918840aae65c0a6da57c78a5a496a4d
https://nvd.nist.gov/vuln/detail/CVE-2025-65018
https://github.com/pnggroup/libpng/security/advisories/GHSA-7wv6-48j4-hj3g
https://github.com/pnggroup/libpng/commit/218612ddd6b17944e21eda56caf8b4bf7779d1ea
https://github.com/pnggroup/libpng/issues/755
https://www.mend.io/vulnerability-database/CVE-2025-65018

Severity Score

Weakness Type (CWE)

Out-of-bounds Write

CWE-787

Heap-based Buffer Overflow

CWE-122

Top Fix

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Upgrade to version https://github.com/pnggroup/libpng.git - v1.6.51

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CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): HIGH
Availability (A): HIGH

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