Medium severity5.3NVD Advisory· Published Mar 8, 2026· Updated Apr 29, 2026

CVE-2026-3713

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Pnggroup/Libpngreferences2 versions
(expand)+ 1 more
- (no CPE)
- (no CPE)range: <=1.6.55

Patches

Vulnerability mechanics

References

github.com/biniamf/pocs/tree/main/pnm2pngnvd
github.com/pnggroup/libpng/issues/794nvd
vuldb.comnvd
vuldb.comnvd
vuldb.comnvd

News mentions

No linked articles in our index yet.

Severity

MediumCVSS v3.1

5.3/ 10

CVSS v41.9

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack vector: Local
Complexity: Low
Privileges: Low
User interaction: None
Scope: Unchanged
Confidentiality: Low
Integrity: Low
Availability: Low

Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

Affected

Source repo: github.com/pnggroup/libpng/

EPSS

Probability of exploitation in the next 30 days.

0.13%

VYPR risk score

Composite of severity, exploitation, and reach.

0.34medium

cvss	0.345
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000

Weaknesses

CWE-119
Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-122
Heap-based Buffer Overflow

CVE ID

CVE-2026-3713

Credits

B(
biniam (VulDB User)
reporter