CVEvulnerability
CVE-2026-45761
3.3 LOW
Official page ↗
- Status
- Analyzed
- Published
- 2026-09-10
- Last modified
- 2026-09-16
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 3.3 LOW — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
- Weaknesses
- CWE-122
Description
Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to versions 7.0.16 and 8.0.5, a crafted rule using mixed-case frame syntax could trigger a heap buffer overflow while Suricata is loading signatures. The issue is reached during rule parsing/loading rather than by network traffic alone. Versions 7.0.16 and 8.0.5 contain a fix. As a workaround, preprocess rules to check that frames are all lowercase and/or only load trusted rulesets.
Affected configurations
• oisf suricata (>= 7.0.0 < 7.0.16)
• oisf suricata (>= 8.0.0 < 8.0.5)
Related
Weakness · CWE (1)
- CWE-122 Heap-based Buffer Overflow weakness
References
- https://forum.suricata.io/t/suricata-8-0-5-and-7-0-16-released/6315 Release Notes, Vendor Advisory
- https://github.com/OISF/suricata/security/advisories/GHSA-r74x-74x5-r9vm Vendor Advisory
- https://redmine.openinfosecfoundation.org/issues/8526 Permissions Required