CVE-2025-64335
Suricata is vulnerable to a null deref when used with base64_data
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.
INFO
Published Date :
Nov. 26, 2025, 11:15 p.m.
Last Modified :
Dec. 12, 2025, 3:15 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | [email protected] |
Solution
- Update Suricata to version 8.0.2 or later.
- Disable rules using entropy with base64_data.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-64335.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-64335 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-64335
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-64335 vulnerability anywhere in the article.
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.
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CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Dec. 12, 2025
Action Type Old Value New Value Added Reference https://www.vicarius.io/vsociety/posts/cve-2025-64335-detect-suricata-vulnerability Added Reference https://www.vicarius.io/vsociety/posts/cve-2025-64335-mitigate-suricata-vulnerability -
Initial Analysis by [email protected]
Dec. 08, 2025
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:oisf:suricata:*:*:*:*:*:*:*:* versions from (including) 8.0.0 up to (excluding) 8.0.2 Added Reference Type GitHub, Inc.: https://github.com/OISF/suricata/commit/c935f08cd988600fd0a4f828a585b181dd5de012 Types: Patch Added Reference Type GitHub, Inc.: https://github.com/OISF/suricata/security/advisories/GHSA-v299-h7p3-q4f2 Types: Third Party Advisory -
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