Cisco has released three security advisories to address multiple vulnerabilities. These vulnerabilities may allow a local unauthenticated user to execute arbitrary commands with escalated privileges or cause a denial-of-service (DoS) condition. These vulnerabilities affect the following:
- Cisco TelePresence ISDN Gateway D-Channel Denial of Service Vulnerability
- Cisco TelePresence System Software Command Execution Vulnerability
- Cisco TelePresence Video Communication Server SIP Denial of Service Vulnerability
US-CERT encourages users and administrators to review the following Cisco Security Advisories and apply any necessary updates to help mitigate these vulnerabilities.