High severity7.8NVD Advisory· Published Nov 2, 2026· Updated Nov 2, 2026
CVE-2026-120433
CVE-2026-120433
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 the picttoppm paintPoly() function due to an unbounded polygon point count. Attackers can supply a crafted PICT file with a polygon exceeding 100 points to overwrite the fixed pts array, causing crashes or potentially code execution.
Affected products
1Patches
Vulnerability mechanics
References
6- sourceforge.net/p/netpbm/code/5328/nvd
- svn.code.sf.net/p/netpbm/code/!svn/bc/5327/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-buffer-overflow-via-paintpolynvd
News mentions
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