CVE-2026-45765

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).

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
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-m8x4-c78g-r4vj	Third Party Advisory
https://redmine.openinfosecfoundation.org/issues/8460	Permissions Required

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:oisf:suricata::::::::
	cpe:2.3:a:oisf:suricata::::::::

History

16 Sep 2026, 20:18

Type	Values Removed	Values Added
First Time		Oisf Oisf suricata
CPE		cpe:2.3:a:oisf:suricata::::::::
References	~~() https://forum.suricata.io/t/suricata-8-0-5-and-7-0-16-released/6315 -~~	() https://forum.suricata.io/t/suricata-8-0-5-and-7-0-16-released/6315 - Release Notes, Vendor Advisory
References	~~() https://github.com/OISF/suricata/security/advisories/GHSA-m8x4-c78g-r4vj -~~	() https://github.com/OISF/suricata/security/advisories/GHSA-m8x4-c78g-r4vj - Third Party Advisory
References	~~() https://redmine.openinfosecfoundation.org/issues/8460 -~~	() https://redmine.openinfosecfoundation.org/issues/8460 - Permissions Required

Information

Published : 2026-09-10 22:16

Updated : 2026-09-16 20:18

NVD link : CVE-2026-45765

Mitre link : CVE-2026-45765

CVE.ORG link : CVE-2026-45765

JSON object : View

Products Affected

oisf

suricata

CWE

CWE-400

Uncontrolled Resource Consumption

CWE-770

Allocation of Resources Without Limits or Throttling

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