Unchecked Return Value in Suricata - #VU152935
Published: September 30, 2026
Vulnerability identifier: #VU152935
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-252
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to bypass the configured app-layer error exception policy.
The vulnerability exists due to an unchecked return value in the IKEv1 parser when processing crafted IKEv1 traffic. A remote attacker can send a malformed IKEv1 datagram to bypass the configured app-layer error exception policy.
The bypass is limited to the malformed datagram or flow; later valid IKE datagrams and raw packet or payload inspection remain available.
Affected software
Suricata
Remediation
Install security update from vendor's website.
Suricata - update to 8.0.7