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CWE

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CVE-2026-3713

Published: Mar 8, 2026

Modified: Mar 11, 2026

PUBLISHED

CVSS v3.1

5.3

MEDIUM

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.

Vendor	Product	Versions
pnggroup	libpng	affected `1.6.0` affected `1.6.1` affected `1.6.2` affected `1.6.3` affected `1.6.4` +51 more versions

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:C

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

Low

References

VDB-349658 | pnggroup libpng pnm2png pnm2png.c do_pnm2png heap-based overflow

vdb-entry

technical-description

VDB-349658 | CTI Indicators (IOB, IOC, IOA)

signature

permissions-required

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

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