CVE-2025-29917

5.5 mediumEPSS 0.3%

Medium (5.5) in oisf suricata. EPSS 0.3% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

5.5 medium

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.3% chance of exploitation in the next 30 days; higher than 19% of CVEs (scores of 2026-10-31)
CWE: CWE-770
Published: 2025-04-10
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

oisf:suricata

References

https://github.com/OISF/suricata/commit/32d0bd2bbb4d486623dec85a94952fde2515f2f0
https://github.com/OISF/suricata/security/advisories/GHSA-x8c9-8553-j9px
https://redmine.openinfosecfoundation.org/issues/7613

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