CVE-2016-1411: A vulnerability in the update functionality of Cisco AsyncOS Software for Cisco Email Security Appliance (E...

Security readout for executives and security teams

Cisco security appliances using affected AsyncOS releases could be fooled into trusting an attacker as the software update server. That matters because ESA, WSA, and SMA are security infrastructure. The source bundle does not provide CVSS, detailed impact, or confirmed exploitation evidence. Exposure is limited to Cisco ESA, WSA, or SMA deployments running the listed affected AsyncOS releases. Internet-facing status is not enough to determine risk from the bundle; update path and version verification are required. Prioritize version validation and remediation for affected security appliances. Business urgency is meaningful because compromised update trust can affect security infrastructure, but available evidence does not confirm active exploitation. Mitigation focus: Identify all Cisco ESA, WSA, and SMA appliances.; Compare AsyncOS versions against affected and fixed release lists.; Upgrade to a listed fixed AsyncOS release where applicable..

Prepared

Jun 13, 2026, 13:16 UTC (UTC+00:00)

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