CVE-2025-64335
Suricata is a network IDS, IPS and NSM engine developed by the OISF (Open Information Security Foundation) and the Suricata community.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.41%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.41% probability · 35th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-476
- Affected
- oisf/suricata
- Source
- security-advisories@github.com
References
- https://github.com/OISF/suricata/commit/c935f08cd988600fd0a4f828a585b181dd5de012Patch
- https://github.com/OISF/suricata/security/advisories/GHSA-v299-h7p3-q4f2Third 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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.