Input validation error in OpenBSD - #VU131173
Published: May 12, 2026
Vulnerability identifier: #VU131173
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to improper input validation in ikev2_print_id in iked(8) when processing IKEv2 identity address data. A remote attacker can send a specially crafted IKEv2 message to cause a denial of service.
Affected software
OpenBSD
Remediation
Install security update from vendor's website.