Medium severity · published Apr 10, 2025
CVE-2025-29917
Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine
5.5
CVSS
0.3%
EPSS
No
On KEV
Description
Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. The bytes setting in the decode_base64 keyword is not properly limited. Due to this, signatures using the keyword and setting can cause large memory allocations of up to 4 GiB per thread. This vulnerability is fixed in 7.0.9.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 19% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SU
Suricata · Oisf
before 7.0.9 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-29917
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-29917
Patch
https://github.com/OISF/suricata/commit/32d0bd2bbb4d486623dec85a94952fde2515f2f0
Vendor Advisory
https://github.com/OISF/suricata/security/advisories/GHSA-x8c9-8553-j9px
Permissions Required
https://redmine.openinfosecfoundation.org/issues/7613
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