High severity · published Nov 26, 2025
CVE-2025-64335
Suricata is a network IDS, IPS and NSM engine developed by the OISF (Open Information Security Foundation) and the Suricata community
7.5
CVSS
0.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 38% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SU
Suricata · Oisf
8.0.0 before 8.0.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-64335
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-64335
Patch
https://github.com/OISF/suricata/commit/c935f08cd988600fd0a4f828a585b181dd5de012
Third Party Advisory
https://github.com/OISF/suricata/security/advisories/GHSA-v299-h7p3-q4f2
www.vicarius.io
https://www.vicarius.io/vsociety/posts/cve-2025-64335-detect-suricata-vulnerability
www.vicarius.io
https://www.vicarius.io/vsociety/posts/cve-2025-64335-mitigate-suricata-vulnerability
More from Suricata
9.8
CVE-2026-22262
Suricata datasets: stack overflow when saving a set
9.8
CVE-2023-35853
In Suricata before 6.0.13, an adversary who controls an external source of Lua rules may be able to execute Lua code
9.8
CVE-2021-37592
Suricata before 5.0.8 and 6.x before 6.0.4 allows TCP evasion via a client with a crafted TCP/IP stack that can send a certain sequence of segments
9.8
CVE-2018-10244
Suricata version 4.0.4 incorrectly handles the parsing of an EtherNet/IP PDU
9.4
CVE-2026-94084
Suricata before 8.0.7 has an Http2ThreadMultiBuf use-after-free when a transaction is inspected by rules that use http.response_header with and without a transform