CVE-2026-2748

Published: Mar 4, 2026

Modified: Mar 4, 2026

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.

Vendor	Product	Versions
SEPPmail	Secure Email Gateway	affected `0 - < 15.0.1`

Weaknesses (CWE)

CWE-295

References

https://downloads.seppmail.com/extrelnotes/150/ERN15.0.html#seppmail-vulnerability-disclosure

release-notes

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CVE-2026-2748

Description

Affected Products

Weaknesses (CWE)

References