CVE-2019-16410: Suricata-Ids Suricata

Critical severity, CVSS 9.1. EPSS: 2.1% chance of exploitation in the next 30 days.

An issue was discovered in Suricata 4.1.4. By sending multiple fragmented IPv4 packets, the function Defrag4Reassemble in defrag.c tries to access a memory region that is not allocated, because of a lack of header_len checking.

Affected products

Published 2019-09-24. Last modified 2026-06-17.