CVE-2026-3713
MEDIUMlibpng <= 1.6.55 - Heap-Based Buffer Overflow in pnm2png
Title source: llmDescription
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.
References (6)
Core 6
Core References
Permissions Required, VDB Entry vdb-entry
technical-description
https://vuldb.com/?id.349658
Permissions Required, VDB Entry signature
permissions-required
https://vuldb.com/?ctiid.349658
Permissions Required, VDB Entry third-party-advisory
https://vuldb.com/?submit.761996
Issue Tracking issue-tracking
https://github.com/pnggroup/libpng/issues/794
Exploit, Third Party Advisory exploit
https://github.com/biniamf/pocs/tree/main/pnm2png
Various Sources product
https://github.com/pnggroup/libpng/
Scores
CVSS v3
5.3
EPSS
0.0013
EPSS Percentile
2.6%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-119
CWE-122
Status
published
Published
Mar 08, 2026
Tracked Since
Mar 08, 2026