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CVE-2026-2748

MEDIUM CVSS: 5.3 Published: 2026-03-04 Modified: 2026-06-17

Description

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

Affected Platforms

Seppmail Seppmail

Weakness Type

CWE-295

References