medium5.3
CVE-2026-2748
SEPPmail Secure Email Gateway before version 15.0.1 improperly validates S/MIME certificates issued for email addresses containing whitespaces, allowing signat…
Impact
SEPPmail Secure Email Gateway before version 15.0.1 improperly validates S/MIME certificates issued for email addresses containing whitespaces, allowing signature spoofing.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Seppmail | Seppmail | before 15.0.1 |