CVE-2025-64333: Oisf Suricata

High severity, CVSS 7.5. EPSS: 0.3% chance of exploitation in the next 30 days.

Suricata is a network IDS, IPS and NSM engine developed by the OISF (Open Information Security Foundation) and the Suricata community. Prior to versions 7.0.13 and 8.0.2, a large HTTP content type, when logged can cause a stack overflow crashing Suricata. This issue has been patched in versions 7.0.13 and 8.0.2. A workaround for this issue involves limiting stream.reassembly.depth to less then half the stack size. Increasing the process stack size makes it less likely the bug will trigger.

Affected products

• Oisf Suricata: before 7.0.13 (fixed in 7.0.13); from 8.0.0, before 8.0.2 (fixed in 8.0.2)

Published 2025-11-26. Last modified 2026-06-17.