CVE-2016-9212: Cisco Web Security Appliance

High severity, CVSS 7.5. EPSS: 2.8% chance of exploitation in the next 30 days.

A vulnerability in the Decrypt for End-User Notification configuration parameter of Cisco AsyncOS Software for Cisco Web Security Appliances could allow an unauthenticated, remote attacker to connect to a secure website over Secure Sockets Layer (SSL) or Transport Layer Security (TLS), even if the WSA is configured to block connections to the website. Affected Products: This vulnerability affects Cisco Web Security Appliances if the HTTPS decryption options are enabled and configured for the device to block connections to certain websites. More Information: CSCvb49012. Known Affected Releases: 9.0.1-162 9.1.1-074.

Affected products

• Cisco Web Security Appliance: version 9.0.1-162 only; version 9.1.1-074 only

Published 2016-12-14. Last modified 2026-06-17.