High severity7.8NVD Advisory· Published Nov 2, 2026
CVE-2026-120434
CVE-2026-120434
Description
Netpbm before 10.86.51, 11.x before 11.02.30, and 11.03 before 11.15.08 contains a stack-based buffer overflow in picttoppm's scanPoly() function in converter/ppm/picttoppm.c. Attackers can supply a crafted PICT file whose polygon edges produce more than 5000 points, overflowing the coord stack array to crash the converter or potentially execute code.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
1Patches
Vulnerability mechanics
References
6- sourceforge.net/p/netpbm/code/5331/nvd
- svn.code.sf.net/p/netpbm/code/!svn/bc/5330/trunk/converter/ppm/picttoppm.cnvd
- svn.code.sf.net/p/netpbm/code/!svn/bc/5357/advanced/doc/HISTORYnvd
- svn.code.sf.net/p/netpbm/code/!svn/bc/5358/stable/doc/HISTORYnvd
- svn.code.sf.net/p/netpbm/code/!svn/bc/5371/super_stable/doc/HISTORYnvd
- www.vulncheck.com/advisories/netpbm-before-10.86.51-11.02.30-and-11.15.08-picttoppm-stack-overflow-via-scanpolynvd
News mentions
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