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.
Fix
Patch, vendor advisory and mitigation references on NVD 1
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 7.5 · oisfNVD modified 2026-10-18 20:10
Affected (CPE criteria) 1
cpe:2.3:a:oisf:suricata:*:*:*:*:*:*:*:*
References 4
- https://github.com/OISF/suricata/commit/c935f08cd988600fd0a4f828a585b181dd5de012 Patch
- https://github.com/OISF/suricata/security/advisories/GHSA-v299-h7p3-q4f2 Third Party Advisory
- https://www.vicarius.io/vsociety/posts/cve-2025-64335-detect-suricata-vulnerability
- https://www.vicarius.io/vsociety/posts/cve-2025-64335-mitigate-suricata-vulnerability