CVE-2026-3713

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 v3 5.3 MEDIUM
CVSS v2.0 4.3 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.4

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

4.3^/10

CVSS v2.0 : MEDIUM

Vector : AV:L/AC:L/Au:S/C:P/I:P/A:P

Exploitability : 3.1 / Impact : 6.4

Access Vector LOCAL

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://github.com/biniamf/pocs/tree/main/pnm2png
https://github.com/pnggroup/libpng/
https://github.com/pnggroup/libpng/issues/794
https://vuldb.com/?ctiid.349658
https://vuldb.com/?id.349658
https://vuldb.com/?submit.761996

Configurations

No configuration.

History

22 Apr 2026, 21:27

Type	Values Removed	Values Added
Summary		(es) Se ha encontrado una falla en pnggroup libpng hasta 1.6.55. Afectada por esta vulnerabilidad es la función do_pnm2png del archivo contrib/pngminus/pnm2png.c del componente pnm2png. Esta manipulación del argumento width/height causa desbordamiento de búfer basado en montículo. El ataque está restringido a la ejecución local. El exploit ha sido publicado y puede ser utilizado. El proyecto fue informado del problema tempranamente a través de un informe de problema pero aún no ha respondido.

08 Mar 2026, 06:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-03-08 06:16

Updated : 2026-04-29 01:00

NVD link : CVE-2026-3713

Mitre link : CVE-2026-3713

CVE.ORG link : CVE-2026-3713

JSON object : View

Products Affected

No product.

CWE

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

CWE-122

Heap-based Buffer Overflow

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