5.3Medium
CVE-2026-3713pnggroup libpng pnm2png pnm2png.c do_pnm2png heap-based overflow
Description
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.
Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.
Affected products and versions
| Vendor | Product | Versions | |
|---|---|---|---|
| libpng | libpng | — | |
| pnggroup | libpng | 1.6.0, 1.6.1, 1.6.2, 1.6.3, 1.6.4, 1.6.5, 1.6.6, 1.6.7, 1.6.8, 1.6.9, 1.6.10, 1.6.11, 1.6.12, 1.6.13, 1.6.14, 1.6.15, 1.6.16, 1.6.17, 1.6.18, 1.6.19, 1.6.20, 1.6.21, 1.6.22, 1.6.23, 1.6.24, 1.6.25, 1.6.26, 1.6.27, 1.6.28, 1.6.29, 1.6.30, 1.6.31, 1.6.32, 1.6.33, 1.6.34, 1.6.35, 1.6.36, 1.6.37, 1.6.38, 1.6.39, 1.6.40, 1.6.41, 1.6.42, 1.6.43, 1.6.44, 1.6.45, 1.6.46, 1.6.47, 1.6.48, 1.6.49, 1.6.50, 1.6.51, 1.6.52, 1.6.53, 1.6.54, 1.6.55 |
References and patches
- VDB-349658 | pnggroup libpng pnm2png pnm2png.c do_pnm2png heap-based overflow vdb-entrytechnical-description
- VDB-349658 | CTI Indicators (IOB, IOC, IOA) signature
- Submit #761996 | libpng pnm2png 1.8.0 Integer Overflow to Buffer Overflow third-party-advisory
- https://github.com/pnggroup/libpng/issues/794 issue-tracking
- https://github.com/biniamf/pocs/tree/main/pnm2png exploit
- https://github.com/pnggroup/libpng/ product