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;)`.
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History
Fri, 11 Sep 2026 08:00:00 +0000
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Oisf
Oisf suricata |
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| Vendors & Products |
Oisf
Oisf suricata |
Thu, 10 Sep 2026 21:45:00 +0000
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| 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;)`. | |
| Title | ikev2: unbounded client transform storage can lead to resource exhaustion | |
| Weaknesses | CWE-400 CWE-770 |
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| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published: 2026-09-10T21:38:46.066Z
Updated: 2026-09-11T15:55:14.377Z
Reserved: 2026-05-13T07:45:21.251Z
Link: CVE-2026-45769
No data.
Status : Received
Published: 2026-09-10T22:16:56.970
Modified: 2026-09-11T16:17:06.747
Link: CVE-2026-45769
No data.