CVE-2025-64335 HIGH

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

Vendor Oisf
Product suricata
Weakness CWE-476
Published November 26, 2025
Last update December 12, 2025
View on NVD All CVEs

CVSS base score

7.5/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity None

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

November 26, 2025 CVE published
December 12, 2025 Record updated