NULL pointer dereference in Suricata - CVE-2025-64335
Published: November 27, 2025
Vulnerability identifier: #VU118813
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2025-64335
CWE-ID: CWE-476
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Open Information Security Foundation
Affected software:
Suricata
Suricata
Detailed vulnerability description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error when the entropy keyword is used in conjunction with base64_data. A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.
How to mitigate CVE-2025-64335
Install updates from vendor's website.