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CVE-2025-64335

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Date: November 26, 2025

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.

Severity Score

Related Resources (4)

https://github.com/OISF/suricata/commit/c935f08cd988600fd0a4f828a585b181dd5de012
https://nvd.nist.gov/vuln/detail/CVE-2025-64335
https://github.com/OISF/suricata/security/advisories/GHSA-v299-h7p3-q4f2
https://www.mend.io/vulnerability-database/CVE-2025-64335

Severity Score

Weakness Type (CWE)

NULL Pointer Dereference

CWE-476

Top Fix

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Upgrade Version

Upgrade to version https://github.com/OISF/suricata.git - suricata-7.0.13;https://github.com/OISF/suricata.git - suricata-8.0.2

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

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