CVE-2024-32664: Oisf Suricata

High severity, CVSS 7.3. EPSS: 0.9% chance of exploitation in the next 30 days.

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to 7.0.5 and 6.0.19, specially crafted traffic or datasets can cause a limited buffer overflow. This vulnerability is fixed in 7.0.5 and 6.0.19. Workarounds include not use rules with `base64_decode` keyword with `bytes` option with value 1, 2 or 5 and for 7.0.x, setting `app-layer.protocols.smtp.mime.body-md5` to false.

Affected products

• Oisf Suricata: from 6.0.0, before 6.0.19 (fixed in 6.0.19); from 7.0.0, before 7.0.5 (fixed in 7.0.5)

Published 2024-05-07. Last modified 2026-06-17.