CVE-2026-55366: Security vulnerability
Published Sep 15, 2026
·Updated
In IP Multimedia Subsystem, there is a possible authentication bypass due to a logic error in the code. This could lead to remote escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.
Frequently Asked Questions
1
What level of access does an attacker need to exploit this issue?
The issue can be exploited remotely and does not require additional execution privileges. No user interaction is required.
2
Which deployments should be prioritized for review?
Deployments using IP Multimedia Subsystem functionality should be prioritized because the flaw affects authentication logic in that component and can result in privilege escalation.