CVE-2008-4555: Graphviz

High severity, CVSS 8.5. EPSS: 5.1% chance of exploitation in the next 30 days.

Stack-based buffer overflow in the push_subg function in parser.y (lib/graph/parser.c) in Graphviz 2.20.2, and possibly earlier versions, allows user-assisted remote attackers to cause a denial of service (memory corruption) or execute arbitrary code via a DOT file with a large number of Agraph_t elements.

Affected products

• Graphviz Graphviz: up to and including 2.20.2; version 1.5.1 only; version 1.5.2 only; version 1.5.3 only; version 1.7.5.1 only; version 1.7.5.2 only; …

Published 2008-10-14. Last modified 2026-06-16.