Chen Farchi

**Name of the Vulnerable Software and Affected Versions** Cisco AsyncOS Software for Cisco Email Security Appliance (ESA) (affected versions not specified) **Description** A vulnerability in the URL filtering mechanism could allow an unauthenticated, remote attacker to bypass the URL reputation filters on an affected device. This issue is due to improper processing of URLs. An attacker could exploit this by crafting a URL in a particular way, potentially allowing malicious URLs to pass through the device. **Recommendations** At the moment, there is no information about a newer version that contains a fix for this vulnerability.