https://seclists.org/oss-sec/2025/q4/233: libpng 1.6.52: Out-of-bounds vulnerability fixed: CVE-2025-66293

Published Dec 3, 2025
·
Updated

Affected Software

1 affected component
libpng LIBPNG>=1.6.0<1.6.51
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Frequently Asked Questions

1

What is the severity of CVE-2025-66293?

CVE-2025-66293 is classified as high severity with a CVSS score of 7.1.

2

What causes CVE-2025-66293?

CVE-2025-66293 is caused by an out-of-bounds read vulnerability in the simplified API of libpng.

3

How do I fix CVE-2025-66293?

To fix CVE-2025-66293, update to libpng version 1.6.52 or later.

4

Which versions of libpng are affected by CVE-2025-66293?

CVE-2025-66293 affects libpng versions 1.6.0 through 1.6.51.

5

What functions are impacted by CVE-2025-66293?

CVE-2025-66293 impacts the png_image_read_composite function when processing palettes.

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