CVE-2025-64335 – Suricata is vulnerable to a null deref when used with base64_data

The following table lists the changes that have been made to the
CVE-2025-64335 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution
of a vulnerability, and for identifying the most recent changes that may
impact the vulnerability’s severity, exploitability, or other characteristics.

  • New CVE Received
    by [email protected]

    Nov. 26, 2025

    Action Type Old Value New Value
    Added 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.
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    Added CWE CWE-476
    Added Reference https://github.com/OISF/suricata/commit/c935f08cd988600fd0a4f828a585b181dd5de012
    Added Reference https://github.com/OISF/suricata/security/advisories/GHSA-v299-h7p3-q4f2
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