CVE-2025-64335

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

7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS

0.4% chance of exploitation in the next 30 days; higher than 35% of CVEs (scores of 2026-10-25)

CWE

CWE-476

Published

2025-11-26

Modified

2026-10-18

Record from

the NVD, synced 2026-10-19

Affected

• oisf:suricata

References

• https://github.com/OISF/suricata/commit/c935f08cd988600fd0a4f828a585b181dd5de012
• https://github.com/OISF/suricata/security/advisories/GHSA-v299-h7p3-q4f2
• https://www.vicarius.io/vsociety/posts/cve-2025-64335-detect-suricata-vulnerability
• https://www.vicarius.io/vsociety/posts/cve-2025-64335-mitigate-suricata-vulnerability

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