Security Advisory

CVE-2026-2748

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2026-03-04 08:48:58

Last updated 2026-03-04 16:55:03

Assigner NCSC.ch

State PUBLISHED

Description

SEPPmail Secure Email Gateway before version 15.0.1 improperly validates S/MIME certificates issued for email addresses containing whitespaces, allowing signature spoofing.

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