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CVE-2026-45769 Details

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,IKEv2 parser state could grow without bounds while storing client transforms. Repeated crafted UDP traffic may cause Suricata to consume excessive memory, potentially resulting in denial of service. Versions 7.0.16 and 8.0.5 fix the issue. Some workarounds are available. Disable IKE application-layer parsing if it is not needed. Alternatively, use a rule to bypass ike flows after the first packets like `alert ike any any -> any any (sid: 2; flow.pkts_toserver: > 256; bypass; noalert;)`.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:7.5 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://redmine.openinfosecfoundation.org/issues/8415	CISA-ADP	Permissions Required
https://forum.suricata.io/t/suricata-8-0-5-and-7-0-16-released/6315	[email protected]	Release NotesVendor Advisory
https://github.com/OISF/suricata/security/advisories/GHSA-hg2g-r464-5593	[email protected]	Third Party Advisory
https://redmine.openinfosecfoundation.org/issues/8415	[email protected]	Permissions Required

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-400	Uncontrolled Resource Consumption	[email protected]
CWE-770	Allocation of Resources Without Limits or Throttling	[email protected]

Affected Products

Product	Versions
oisf suricata	>= 7.0.0, < 7.0.16 >= 8.0.0, < 8.0.5
CPE cpe:2.3:a:oisf:suricata:::::::: Remediation No remediation found in references.

Change History

3 change records found show changes

Date	Action	Recorded By
Sep 16, 2026	Initial Analysis	[email protected]
Sep 11, 2026	CVE Modified	CISA-ADP
Sep 10, 2026	New CVE Received	[email protected]