ThreatCluster

Critical Vulnerabilities in Suricata Detected: CVE-2026-45768 and CVE-2026-45769

First seen 11 Sep 2026, 19:43 UTC • •71

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ThreatCluster •September 12, 2026 at 02:55 UTC

•CVE-2026-45768 affects Suricata versions 8.0.0 and prior.
•CVE-2026-45769 impacts versions prior to 7.0.16 and 8.0.5.
•Both vulnerabilities could lead to unauthorized access or denial of service.

Two critical vulnerabilities, CVE-2026-45768 and CVE-2026-45769, were published on September 10, 2026, affecting Suricata, a network Intrusion Detection and Prevention System. CVE-2026-45768 impacts Suricata versions 8.0.0 and prior, while CVE-2026-45769 affects versions prior to 7.0.16 and 8.0.5. Both vulnerabilities could allow attackers to exploit weaknesses in the IKEv2 parser, potentially leading to unauthorized access or denial of service. The vulnerabilities were disclosed simultaneously, indicating a significant security concern for users of Suricata. Administrators are urged to update to the latest versions to mitigate risks. The current status of exploitation is unknown, but the vulnerabilities are critical and should be addressed immediately.

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Timeline

2026-09-10

CVE-2026-45768 published

CVE-2026-45768 disclosed, affecting Suricata versions 8.0.0 and prior, allowing potential exploitation.

2026-09-10

CVE-2026-45769 published

CVE-2026-45769 disclosed, affecting Suricata versions prior to 7.0.16 and 8.0.5, with potential for exploitation.

2026-09-11

Security advisory issued

Suricata users are advised to update to the latest versions to mitigate risks from the vulnerabilities.

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Threat Graph

3 entities, 2 inferred relationships (STIX 2.1).

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Vulnerability (2)

CVE-2026-45768
CVE-2026-45769

Affected Platform (1)

Suricata

Relationships

CVE-2026-45768 targets Suricata
CVE-2026-45769 targets Suricata

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