High severity7.8NVD Advisory· Published Nov 2, 2026
CVE-2026-120432
CVE-2026-120432
Description
Netpbm before 10.86.51, 11.02.30, and 11.15.08 contains an integer overflow vulnerability in winicontopam that allows attackers to corrupt heap memory via oversized ICO/CUR dimensions. Attackers can supply a crafted icon file with width or height above 32767, wrapping int16_t loop counters into negative row buffer indices to cause crashes or potential code execution.
Affected products
1Patches
Vulnerability mechanics
References
6- sourceforge.net/p/netpbm/code/5335/nvd
- svn.code.sf.net/p/netpbm/code/!svn/bc/5334/trunk/converter/other/winicontopam.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-integer-overflow-in-winicontopamnvd
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