Unrated severityNVD Advisory· Published Mar 4, 2026· Updated Mar 4, 2026
S/MIME Certificate Subject Whitespace
CVE-2026-2748
Description
SEPPmail Secure Email Gateway before version 15.0.1 improperly validates S/MIME certificates issued for email addresses containing whitespaces, allowing signature spoofing.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
2<15.0.1+ 1 more
- (no CPE)range: <15.0.1
- (no CPE)range: 0
Patches
Vulnerability mechanics
References
1- downloads.seppmail.com/extrelnotes/150/ERN15.0.htmlmitrerelease-notes
News mentions
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