Wyatt Dahlenburg

**Name of the Vulnerable Software and Affected Versions** Cisco Expressway Series (affected versions not specified) **Description** A vulnerability in the restricted shell of Cisco Expressway Series could allow an authenticated, local attacker to perform command injection attacks on the underlying operating system and elevate privileges to root. This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by submitting a series of crafted CLI commands. A successful exploit could allow the attacker to escape the restricted shell and gain root privileges on the underlying operating system of the affected device. **Recommendations** At the moment, there is no information about a newer version that contains a fix for this vulnerability.