Critical (9.1) in suricata-ids suricata. 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.
Severity
CVSS 3.1
9.1 critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
EPSS
2.1% chance of exploitation in the next 30 days; higher than 82% of CVEs (scores of 2026-10-31)