CVE-2025-64335: Oisf Suricata

High severity, CVSS 7.5. EPSS: 0.4% 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. In versions from 8.0.0 to before 8.0.2, a NULL dereference can occur when the entropy keyword is used in conjunction with base64_data. This issue has been patched in version 8.0.2. A workaround involves disabling rules that use entropy in conjunction with base64_data.

Affected products

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

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