{"id":"CVE-2026-120434","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-120434","summary":"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…","details":"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.","published":"2026-11-02T15:17:25.113","modified":"2026-11-02T15:17:25.113","cvss":{"score":7.8,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":null,"references":[{"type":"WEB","url":"https://sourceforge.net/p/netpbm/code/5331/"},{"type":"WEB","url":"https://svn.code.sf.net/p/netpbm/code/!svn/bc/5330/trunk/converter/ppm/picttoppm.c"},{"type":"WEB","url":"https://svn.code.sf.net/p/netpbm/code/!svn/bc/5357/advanced/doc/HISTORY"},{"type":"WEB","url":"https://svn.code.sf.net/p/netpbm/code/!svn/bc/5358/stable/doc/HISTORY"},{"type":"WEB","url":"https://svn.code.sf.net/p/netpbm/code/!svn/bc/5371/super_stable/doc/HISTORY"},{"type":"WEB","url":"https://www.vulncheck.com/advisories/netpbm-before-10.86.51-11.02.30-and-11.15.08-picttoppm-stack-overflow-via-scanpoly"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-11-02T15:17:25.113"}}