CVE-2016-1423: Cisco Email Security Appliance

Medium severity, CVSS 6.1. EPSS: 1.5% chance of exploitation in the next 30 days.

A vulnerability in the display of email messages in the Messages in Quarantine (MIQ) view in Cisco AsyncOS for Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to cause a user to click a malicious link in the MIQ view. The malicious link could be used to facilitate a cross-site scripting (XSS) or HTML injection attack. More Information: CSCuz02235. Known Affected Releases: 8.0.2-069. Known Fixed Releases: 9.1.1-038 9.7.2-047.

Affected products

• Cisco Email Security Appliance: version 8.9.0 only; version 8.9.1-000 only; version 8.9.2-032 only; version 9.0.0 only; version 9.0.0-212 only; version 9.0.0-461 only; …

Published 2016-10-28. Last modified 2026-06-17.