CVE-2026-45765
Last modified
CVE-2026-45765 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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, DNP3 reassembly could buffer data without sufficient parser-level bounds. EPSS estimates a 0.43% chance of exploitation in the next 30 days.
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, DNP3 reassembly could buffer data without sufficient parser-level bounds. Crafted DNP3 traffic may cause Suricata to consume excessive memory, potentially resulting in denial of service. Versions 7.0.16 and 8.0.5 contain a fix. As a workaround, disable DNP3 (which is not enabled by default) if it is not needed, and/or define a limited `stream.reassembly.depth` (0 or absent is unlimited).
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Oisf | Suricata | >= 7.0.0, < 7.0.16 |
| Oisf | Suricata | >= 8.0.0, < 8.0.5 |
References
- https://forum.suricata.io/t/suricata-8-0-5-and-7-0-16-released/6315Release Notes, Vendor Advisory
- https://github.com/OISF/suricata/security/advisories/GHSA-m8x4-c78g-r4vjThird Party Advisory
- https://redmine.openinfosecfoundation.org/issues/8460Permissions Required
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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