Incorrect Calculation of Buffer Size Affecting libpng package, versions *


Severity

Recommended
0.0
medium
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.02% (4th percentile)

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  • Snyk IDSNYK-CENTOS6-LIBPNG-15545341
  • published14 Mar 2026
  • disclosed8 Mar 2026

Introduced: 8 Mar 2026

CVE-2026-3713  (opens in a new tab)
CWE-131  (opens in a new tab)

How to fix?

There is no fixed version for Centos:6 libpng.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libpng package and not the libpng package as distributed by Centos. See How to fix? for Centos:6 relevant fixed versions and status.

A flaw has been found in pnggroup libpng up to 1.6.55. Affected by this vulnerability is the function do_pnm2png of the file contrib/pngminus/pnm2png.c of the component pnm2png. This manipulation of the argument width/height causes heap-based buffer overflow. The attack is restricted to local execution. The exploit has been published and may be used. The project was informed of the problem early through an issue report but has not responded yet.

CVSS Base Scores

version 3.1