CVE-2026-2748

MediumCVSS 5.3/10Last modified Jun 17, 2026

Description

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

Metrics

CVSS 3.1 5.3/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Weakness enumeration

CWE-295

Affected software

No affected versions have been published.

Timeline

Published
Mar 4, 2026
Last modified
Jun 17, 2026
NVD status
Analyzed

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CVE-2026-2748: Medium severity, CVSS 5.3 | Vulnix