CVE-2026-120431
HIGH
NVD
CVSS Score
7.8
Severity
HIGH
Published
Nov 02, 2026
Vendor
unknown
Description
Netpbm before 10.86.51, 11.x before 11.02.29, and 11.03 before 11.15.07 contains a heap-based buffer overflow in sgitopnm's readChannels() function when processing RLE-compressed SGI images. Attackers can supply crafted SGI files with oversized offset table lengths to write controlled data past the heap buffer, causing crashes or potential code execution.
References
- https://sourceforge.net/p/netpbm/code/5317/
- https://svn.code.sf.net/p/netpbm/code/!svn/bc/5316/trunk/converter/other/sgitopnm.c
- https://svn.code.sf.net/p/netpbm/code/!svn/bc/5318/advanced/doc/HISTORY
- https://svn.code.sf.net/p/netpbm/code/!svn/bc/5319/stable/doc/HISTORY
- https://svn.code.sf.net/p/netpbm/code/!svn/bc/5371/super_stable/doc/HISTORY