CVE-2025-29917

low-risk
Published 2025-04-10

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.

Do I need to act?

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0.15% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
6
CVSS 6.2/10 Medium
LOCAL / LOW complexity

Affected Products (1)

Affected Vendors

Oisf

References (3)

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
26
/ 100
low-risk
Severity 20/34 · Moderate
Exploitability 1/34 · Minimal
Exposure 5/34 · Minimal