CVE-2026-52023

Name of the Vulnerable Software and Affected Versions kamailio versions prior to 6.1.1

Description A remote attacker can cause a denial of service through the ims registrar pcscf module. The issue occurs during security-agreement parsing within the parse sec agree() function in sec agree.c, specifically affecting the pcscf save pending/save pending path.

Recommendations Update to a version later than 6.1.1. As a temporary mitigation, restrict access to the ims registrar pcscf module.