CVE-2015-4216: The remote-support feature on Cisco Web Security Virtual Appliance (WSAv), Email Security Virtual Appliance...

Security readout for executives and security teams

Cisco virtual web, email, and security management appliances used a shared default SSH root key for remote support across customer installations before June 25, 2015. If an attacker obtained the matching private key from another installation, they could bypass authentication and gain privileged access. Exposure is most likely in older Cisco virtual WSA, ESA, or SMA deployments with the remote-support SSH path reachable. The source bundle does not provide CPEs, exact version ranges, or configuration details beyond devices before 2015-06-25. Treat as a high-priority legacy exposure review. The affected products are security infrastructure, and root-level authentication bypass would undermine email, web, or security management controls if reachable and unremediated. Mitigation focus: Review Cisco advisory cisco-sa-20150625-ironport for vendor remediation guidance.; Inventory Cisco WSAv, ESAv, and SMAv deployments created before 2015-06-25.; Restrict remote-support or SSH reachability to trusted management networks where operationally possible..

Prepared

Jun 13, 2026, 22:22 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.