CVE-2026-39864 Kamailio Auth: Processing Vulnerability For Additional Authenticated User Identity Checks

Kamailio is an open source implementation of a SIP Signaling Server. Prior to 6.0.5 and 5.8.7, an out-of-bounds read in the auth module of Kamailio formerly OpenSER and SER allows remote attackers to cause a denial of service process crash via a specially crafted SIP packet if a successful user...

CVE-2026-39864

Kamailio (SIP signaling server) is affected by CVE-2026-39864 in the auth module. An out-of-bounds read allows remote attackers to trigger a denial of service (process crash) by sending a specially crafted SIP packet after a successful user authentication that did not involve a database backend, ...