CVE-2026-27443 | SEPPmail Secure Email Gateway up to 15.0.0 SMIME input validation

A vulnerability identified as problematic has been detected in SEPPmail Secure Email Gateway up to 15.0.0. The impacted element is an unknown function of the component SMIME Handler. The manipulation leads to improper input validation.

This vulnerability is uniquely identified as CVE-2026-27443. The attack is possible to be carried out remotely. No exploit exists.

You should upgrade the affected component.