CVE-2018-20349: Igraph

Medium severity, CVSS 6.5. EPSS: 1.6% chance of exploitation in the next 30 days.

The igraph_i_strdiff function in igraph_trie.c in igraph through 0.7.1 has an NULL pointer dereference that allows attackers to cause a denial of service (application crash) via a crafted object.

Affected products

• Igraph Igraph: up to and including 0.7.1

Published 2018-12-22. Last modified 2026-06-17.