CC-4713

Two critical vulnerabilities could allow for RCE and authentication bypass in Unified Center Express

Two critical vulnerabilities could allow for RCE and authentication bypass in Unified Center Express

The following platforms are known to be affected:

Cisco Unified Center Express

Cisco has released security updates to address two critical vulnerabilities in Unified Center Express (Unified CCX).

Affected organisations are strongly encouraged to review Cisco’s cisco-sa-cc-unauth-rce-QeN8h7mQ security advisory and apply the relevant update as soon as possible.

A vulnerability in the Java Remote Method Invocation (RMI) process of Cisco Unified CCX could allow an unauthenticated, remote attacker to upload arbitrary files and execute arbitrary commands with root permissions on an affected system. This vulnerability is due to improper authentication mechanisms that are associated to specific Cisco Unified CCX features. An attacker could exploit this vulnerability by uploading a crafted file to an affected system through the Java RMI process. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system and elevate privileges to root.

A vulnerability in the Center Express (CCX) Editor application of Cisco Unified CCX could allow an unauthenticated, remote attacker to bypass authentication and obtain administrative permissions pertaining to script creation and execution. This vulnerability is due to improper authentication mechanisms in the communication between the CCX Editor and an affected Unified CCX server. An attacker could exploit this vulnerability by redirecting the authentication flow to a malicious server and tricking the CCX Editor into believing the authentication was successful. A successful exploit could allow the attacker to create and execute arbitrary scripts on the underlying operating system of an affected Unified CCX server, as an internal non-root user account

Last edited: 6 November 2025 1:51 pm