The flaw enables server-side request forgery (SSRF) and escalates privileges to root, impacting Cisco Unified CM and Unified ...

The NANP dial plan has been discussed in the past four blogs. By default, Cisco Unified Communications Manager (CUCM) does not know how to route any calls to the PSTN based on the NANP or any other ...

A high-severity SSRF vulnerability, tracked as CVE-2026-20230, in Cisco Unified Communications Manager Server is now being exploited in attacks.

CUCM 6.0 has a built in trial license that will be more than adequate for a home lab, but it will not support clustering. At the time of this writing, I recommend using CUCM version 6.1 for your home ...