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CVE-2026-120436 Details

Description

Netpbm before 10.86.51, 11.x before 11.02.30, and 11.03 before 11.15.08 contains an integer overflow in jbigtopnm that causes heap buffer overflow when computing output buffer size. Attackers can supply a crafted multi-plane JBIG file with large header dimensions so jbg_dec_merge_planes() overflows the undersized buffer, causing crashes or potentially code execution.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:7.8 HIGHVector:CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URL	Source(s)	Tag(s)
https://sourceforge.net/p/netpbm/code/5324/	[email protected]
https://svn.code.sf.net/p/netpbm/code/!svn/bc/5323/trunk/converter/other/jbig/jbigtopnm.c	[email protected]
https://svn.code.sf.net/p/netpbm/code/!svn/bc/5357/advanced/doc/HISTORY	[email protected]
https://svn.code.sf.net/p/netpbm/code/!svn/bc/5358/stable/doc/HISTORY	[email protected]
https://svn.code.sf.net/p/netpbm/code/!svn/bc/5371/super_stable/doc/HISTORY	[email protected]
https://www.vulncheck.com/advisories/netpbm-before-10.86.51-11.02.30-and-11.15.08-heap-overflow-via-jbigtopnm	[email protected]

see all 6 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-190	Integer Overflow or Wraparound	[email protected]

Affected Products

No affected product data is available for this CVE.

Change History

2 change records found show changes

Date	Action	Recorded By
Nov 2, 2026	CVE Modified	CISA-ADP
Nov 2, 2026	New CVE Received	[email protected]