pnggroup libpng pnm2png pnm2png.c do_pnm2png heap-based overflow

MITRE NVD CVE.ORG JSON API Print: PDF PDF

Summary

CVECVE-2026-3713
StatePUBLISHED
AssignerVulDB
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-03-08 06:16:11 UTC
Updated2026-04-22 21:27:27 UTC
DescriptionA 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.

Risk And Classification

Primary CVSS: v4.0 4.8 MEDIUM from [email protected]

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

EPSS: 0.000170000 probability, percentile 0.040690000 (date 2026-04-22)

Problem Types: CWE-119 | CWE-122 | CWE-122 Heap-based Buffer Overflow | CWE-119 Memory Corruption

VersionSourceTypeScoreSeverityVector
4.0[email protected]Secondary4.8MEDIUMCVSS: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/C...
4.0CNADECLARED4.8MEDIUMCVSS: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
3.1[email protected]Primary5.3MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
3.1CNADECLARED5.3MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:C
3.0CNADECLARED5.3MEDIUMCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:C
2.0[email protected]Secondary4.3AV:L/AC:L/Au:S/C:P/I:P/A:P
2.0CNADECLARED4.3AV:L/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:C

CVSS v4.0 Breakdown

Attack Vector
Local
Attack Complexity
Low
Attack Requirements
None
Privileges Required
Low
User Interaction
None
Confidentiality
Low
Integrity
Low
Availability
Low
Sub Conf.
None
Sub Integrity
None
Sub Availability
None

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

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
Low

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

CVSS v3.0 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
Low

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:C

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Pnggroup Libpng affected 1.6.0 Not specified
CNA Pnggroup Libpng affected 1.6.1 Not specified
CNA Pnggroup Libpng affected 1.6.2 Not specified
CNA Pnggroup Libpng affected 1.6.3 Not specified
CNA Pnggroup Libpng affected 1.6.4 Not specified
CNA Pnggroup Libpng affected 1.6.5 Not specified
CNA Pnggroup Libpng affected 1.6.6 Not specified
CNA Pnggroup Libpng affected 1.6.7 Not specified
CNA Pnggroup Libpng affected 1.6.8 Not specified
CNA Pnggroup Libpng affected 1.6.9 Not specified
CNA Pnggroup Libpng affected 1.6.10 Not specified
CNA Pnggroup Libpng affected 1.6.11 Not specified
CNA Pnggroup Libpng affected 1.6.12 Not specified
CNA Pnggroup Libpng affected 1.6.13 Not specified
CNA Pnggroup Libpng affected 1.6.14 Not specified
CNA Pnggroup Libpng affected 1.6.15 Not specified
CNA Pnggroup Libpng affected 1.6.16 Not specified
CNA Pnggroup Libpng affected 1.6.17 Not specified
CNA Pnggroup Libpng affected 1.6.18 Not specified
CNA Pnggroup Libpng affected 1.6.19 Not specified
CNA Pnggroup Libpng affected 1.6.20 Not specified
CNA Pnggroup Libpng affected 1.6.21 Not specified
CNA Pnggroup Libpng affected 1.6.22 Not specified
CNA Pnggroup Libpng affected 1.6.23 Not specified
CNA Pnggroup Libpng affected 1.6.24 Not specified
CNA Pnggroup Libpng affected 1.6.25 Not specified
CNA Pnggroup Libpng affected 1.6.26 Not specified
CNA Pnggroup Libpng affected 1.6.27 Not specified
CNA Pnggroup Libpng affected 1.6.28 Not specified
CNA Pnggroup Libpng affected 1.6.29 Not specified
CNA Pnggroup Libpng affected 1.6.30 Not specified
CNA Pnggroup Libpng affected 1.6.31 Not specified
CNA Pnggroup Libpng affected 1.6.32 Not specified
CNA Pnggroup Libpng affected 1.6.33 Not specified
CNA Pnggroup Libpng affected 1.6.34 Not specified
CNA Pnggroup Libpng affected 1.6.35 Not specified
CNA Pnggroup Libpng affected 1.6.36 Not specified
CNA Pnggroup Libpng affected 1.6.37 Not specified
CNA Pnggroup Libpng affected 1.6.38 Not specified
CNA Pnggroup Libpng affected 1.6.39 Not specified
CNA Pnggroup Libpng affected 1.6.40 Not specified
CNA Pnggroup Libpng affected 1.6.41 Not specified
CNA Pnggroup Libpng affected 1.6.42 Not specified
CNA Pnggroup Libpng affected 1.6.43 Not specified
CNA Pnggroup Libpng affected 1.6.44 Not specified
CNA Pnggroup Libpng affected 1.6.45 Not specified
CNA Pnggroup Libpng affected 1.6.46 Not specified
CNA Pnggroup Libpng affected 1.6.47 Not specified
CNA Pnggroup Libpng affected 1.6.48 Not specified
CNA Pnggroup Libpng affected 1.6.49 Not specified
CNA Pnggroup Libpng affected 1.6.50 Not specified
CNA Pnggroup Libpng affected 1.6.51 Not specified
CNA Pnggroup Libpng affected 1.6.52 Not specified
CNA Pnggroup Libpng affected 1.6.53 Not specified
CNA Pnggroup Libpng affected 1.6.54 Not specified
CNA Pnggroup Libpng affected 1.6.55 Not specified

References

ReferenceSourceLinkTags
github.com/pnggroup/libpng/issues/794 [email protected] github.com
vuldb.com [email protected] vuldb.com
vuldb.com [email protected] vuldb.com
vuldb.com [email protected] vuldb.com
github.com/pnggroup/libpng [email protected] github.com
github.com/biniamf/pocs/tree/main/pnm2png [email protected] github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: biniam (VulDB User) (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-03-07T00:00:00.000ZAdvisory disclosed
CNA2026-03-07T01:00:00.000ZVulDB entry created
CNA2026-03-07T11:57:28.000ZVulDB entry last update
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