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CVE-2026-3713

CVE-2026-3713 · pnggroup libpng pnm2png pnm2png.c do_pnm2png heap-based overflow

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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 4.8 · Medium · EPSS 0.1%

Published
Updated

Stack: system

Affected products and versions

  • libpng

    Versions
    • 1.6.0: Affected
    • 1.6.1: Affected
    • 1.6.2: Affected
    • 1.6.3: Affected
    • 1.6.4: Affected
    • 1.6.5: Affected
    • 1.6.6: Affected
    • 1.6.7: Affected
    • 1.6.8: Affected
    • 1.6.9: Affected
    • 1.6.10: Affected
    • 1.6.11: Affected
    • 1.6.12: Affected
    • 1.6.13: Affected
    • 1.6.14: Affected
    • 1.6.15: Affected
    • 1.6.16: Affected
    • 1.6.17: Affected
    • 1.6.18: Affected
    • 1.6.19: Affected
    • 1.6.20: Affected
    • 1.6.21: Affected
    • 1.6.22: Affected
    • 1.6.23: Affected
    • 1.6.24: Affected
    • 1.6.25: Affected
    • 1.6.26: Affected
    • 1.6.27: Affected
    • 1.6.28: Affected
    • 1.6.29: Affected
    • 1.6.30: Affected
    • 1.6.31: Affected
    • 1.6.32: Affected
    • 1.6.33: Affected
    • 1.6.34: Affected
    • 1.6.35: Affected
    • 1.6.36: Affected
    • 1.6.37: Affected
    • 1.6.38: Affected
    • 1.6.39: Affected
    • 1.6.40: Affected
    • 1.6.41: Affected
    • 1.6.42: Affected
    • 1.6.43: Affected
    • 1.6.44: Affected
    • 1.6.45: Affected
    • 1.6.46: Affected
    • 1.6.47: Affected
    • 1.6.48: Affected
    • 1.6.49: Affected
    • 1.6.50: Affected
    • 1.6.51: Affected
    • 1.6.52: Affected
    • 1.6.53: Affected
    • 1.6.54: Affected
    • 1.6.55: Affected

    No fix published

  • libpng1.6 Debian:12

    Versions
    • 1.6.39-2
    • 1.6.39-2+deb12u1
    • 1.6.39-2+deb12u2
    • 1.6.39-2+deb12u3
    • 1.6.39-2+deb12u4
    • 1.6.39-2+deb12u5
    • 1.6.40-1
    • 1.6.40-2
    • 1.6.40-3
    • 1.6.41-1
    • 1.6.42-1
    • 1.6.42-1.1~exp1
    • 1.6.43-1
    • 1.6.43-1exp1
    • 1.6.43-2
    • 1.6.43-3
    • 1.6.43-4
    • 1.6.43-5
    • 1.6.44-1
    • 1.6.44-2
    • 1.6.44-3
    • 1.6.45-1
    • 1.6.46-1
    • 1.6.46-2
    • 1.6.46-3
    • 1.6.46-4
    • 1.6.47-1
    • 1.6.47-1.1
    • 1.6.48-1
    • 1.6.49-1~exp1
    • 1.6.50-1
    • 1.6.50-1~exp1
    • 1.6.51-1
    • 1.6.52-1
    • 1.6.53-1
    • 1.6.54-1
    • 1.6.55-1
    • 1.6.56-1
    • 1.6.57-1
    • 1.6.58-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • libpng1.6 Debian:13

    Versions
    • 1.6.48-1
    • 1.6.48-1+deb13u1
    • 1.6.48-1+deb13u2
    • 1.6.48-1+deb13u3
    • 1.6.48-1+deb13u4
    • 1.6.48-1+deb13u5
    • 1.6.49-1~exp1
    • 1.6.50-1
    • 1.6.50-1~exp1
    • 1.6.51-1
    • 1.6.52-1
    • 1.6.53-1
    • 1.6.54-1
    • 1.6.55-1
    • 1.6.56-1
    • 1.6.57-1
    • 1.6.58-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • libpng1.6 Debian:14

    Versions
    • 1.6.48-1
    • 1.6.49-1~exp1
    • 1.6.50-1
    • 1.6.50-1~exp1
    • 1.6.51-1
    • 1.6.52-1
    • 1.6.53-1
    • 1.6.54-1
    • 1.6.55-1
    • 1.6.56-1
    • 1.6.57-1
    • 1.6.58-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • libpng Ubuntu:Pro:14.04:LTS

    Versions
    • 1.2.49-4ubuntu1
    • 1.2.49-5ubuntu1
    • 1.2.50-1ubuntu1
    • 1.2.50-1ubuntu2
    • 1.2.50-1ubuntu2.14.04.1
    • 1.2.50-1ubuntu2.14.04.2
    • 1.2.50-1ubuntu2.14.04.3
    • 1.2.50-1ubuntu2.14.04.3+esm1
    • 1.2.50-1ubuntu2.14.04.3+esm2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

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