CVE-2026-45769
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;)`.
Scoring
- Severity
- HIGH
- CVSS base score
- 7.5
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CWE
- CWE-400, CWE-770
- Published
- 2026-09-10
- Last modified
- 2026-09-10
Affected products
- OISF suricata
- OISF suricata
Weakness type
Related vulnerabilities
- CVE-2026-45768 — Suricata ldap: unbounded responses per transaction can lead to resource exhaustion
- CVE-2026-45766 — Suricata nfs: unbounded stateful structures can lead to resource exhaustion
- CVE-2026-45765 — Suricata dnp3: unbounded reassembly can lead to resource exhaustion
- CVE-2026-45759 — Suricata http1: quadratic Content-Disposition processing can lead to denial of service
- CVE-2026-87106 — Consul vulnerable to a denial of service in the native RPC listener
- CVE-2026-9338 — IBM WebSphere Application Server prior to 9.0.5.29 and 8.5.5.31 are affected by multiple vulnerabilities
- CVE-2026-88290 — GV-LPC2011/LPC2211 - Unauthenticated VLSVR Slowloris and Memory Resource Exhaustion
- CVE-2026-88286 — GV-LPC2011/LPC2211 - PTZ Connection-State Accept-Loop Denial of Service