CVE-2026-20353 | Cisco Secure Email and Web Manager/Secure Email Gateway up to 16.0.4-016 resource control

A vulnerability labeled as critical has been found in Cisco Secure Email and Web Manager and Secure Email Gateway. Affected by this issue is some unknown functionality. The manipulation results in improper control of resource through lifetime.

This vulnerability is reported as CVE-2026-20353. The attack can be launched remotely. No exploit exists.

The affected component should be upgraded.VulDB Recent EntriesRead More