CVE-2026-2748

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

CVE-2026-2748

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

CVE-2026-2748

CVE-2026-2748 affects SEPPmail Secure Email Gateway prior to version 15.0.1. The issue is improper validation of S/MIME certificates issued for email addresses containing whitespace, which enables signature spoofing. Impact is limited to confidentiality/integrity as described, with no availabilit...

PT-2026-22895

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