{"id":"CVE-2026-120434","title":"Netpbm before 10.86.51, 11.02.30, and 11.15.08 picttoppm Stack Overflow via scanPoly","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 can supply a crafted PICT file whose polygon edges …","severity":"high","cvss":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","cvssSource":"cna","cwe":["CWE-121"],"vendor":"Netpbm","product":"Netpbm","affected":["Netpbm < 10.86.51","Netpbm >= 11.0 < 11.02.30","Netpbm >= 11.03 < 11.15.08"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-11-05T21:36:39.154661Z"},"published":"2026-11-02","updated":"2026-11-05","sourceUpdated":"2026-11-05T21:36:56.064Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-120434","references":[{"url":"https://sourceforge.net/p/netpbm/code/5331/"},{"url":"https://svn.code.sf.net/p/netpbm/code/!svn/bc/5358/stable/doc/HISTORY"},{"url":"https://svn.code.sf.net/p/netpbm/code/!svn/bc/5357/advanced/doc/HISTORY"},{"url":"https://svn.code.sf.net/p/netpbm/code/!svn/bc/5371/super_stable/doc/HISTORY"},{"url":"https://svn.code.sf.net/p/netpbm/code/!svn/bc/5330/trunk/converter/ppm/picttoppm.c"},{"url":"https://www.vulncheck.com/advisories/netpbm-before-10.86.51-11.02.30-and-11.15.08-picttoppm-stack-overflow-via-scanpoly","label":"VulnCheck Advisory: Netpbm before 10.86.51, 11.02.30, and 11.15.08 picttoppm Stack Overflow via scanPoly"}],"tags":["cve.org"],"epss":0.00149,"epssPercentile":0.04084,"ingestedAt":"2026-11-05T19:30:42.653Z","slug":"CVE-2026-120434","body":"## Overview\n\nNetpbm 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.\n\n## Affected\n\n- `Netpbm < 10.86.51`\n- `Netpbm >= 11.0 < 11.02.30`\n- `Netpbm >= 11.03 < 11.15.08`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":42.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}