CVE-2026-120435: high-severity vulnerability in Netpbm
Netpbm before 10.86.51, 11.02.30, and 11.15.08 Heap Overflow in xpmtoppm
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.5epss 0.1%
Netpbm before 10.86.51, 11.x before 11.02.30, and 11.03 before 11.15.08 contains a heap buffer overflow in xpmtoppm caused by an unvalidated characters-per-pixel value in the XPM header. Attackers can supply a crafted XPM file with characters-per-pixel greater than 3 to overrun fixed 3-byte colorName hash entries, causing crashes or potentially code execution.
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Affected products
Netpbm · NetpbmRelated CVEs — Netpbm
In the same product, most dangerous first.
CVE-2026-112276MEDIUMNetpbm through 11.16.00 Heap Out-of-Bounds Read via rasttopnm ColormapEPSS 0.2%CVE-2026-120436HIGHNetpbm before 10.86.51, 11.02.30, and 11.15.08 Heap Overflow via jbigtopnmEPSS 0.2%CVE-2026-120433HIGHNetpbm before 10.86.51, 11.02.30, and 11.15.08 picttoppm Stack Buffer Overflow via paintPolyEPSS 0.2%CVE-2026-120432HIGHNetpbm before 10.86.51, 11.02.30, and 11.15.08 Integer Overflow in winicontopamEPSS 0.2%CVE-2026-120437MEDIUMNetpbm before 10.86.51, 11.02.30, and 11.15.08 Out-of-Bounds Read via tgatoppmEPSS 0.2%CVE-2026-120434HIGHNetpbm before 10.86.51, 11.02.30, and 11.15.08 picttoppm Stack Overflow via scanPolyEPSS 0.1%
References
https://sourceforge.net/p/netpbm/code/5336/https://svn.code.sf.net/p/netpbm/code/!svn/bc/5335/trunk/converter/ppm/xpmtoppm.chttps://svn.code.sf.net/p/netpbm/code/!svn/bc/5357/advanced/doc/HISTORYhttps://svn.code.sf.net/p/netpbm/code/!svn/bc/5358/stable/doc/HISTORYhttps://svn.code.sf.net/p/netpbm/code/!svn/bc/5371/super_stable/doc/HISTORYhttps://www.vulncheck.com/advisories/netpbm-before-10.86.51-11.02.30-and-11.15.08-heap-overflow-in-xpmtoppm