Security vulnerabilities in Cisco Secure Email

As of 10/15/2026, Cisco Secure Email recorded 8 security vulnerabilities in the last 90 days, of which 6 are rated High or Critical. Notably, 2 of these vulnerabilities are actively exploited (KEV) according to CISA's catalog. CyStack recommends that organizations and individual users apply patches as soon as possible.

CyStack does not yet have sufficient official-source data to identify the latest version of Cisco Secure Email and determine which vulnerabilities affect that version.