CVE-2026-29139: Seppmail Secure Email Gateway

Critical severity, CVSS 9.8. EPSS: 0.5% chance of exploitation in the next 30 days.

SEPPmail Secure Email Gateway before version 15.0.3 allows account takeover by abusing GINA account initialization to reset a victim account password.

Affected products

• Seppmail Secure Email Gateway: before 15.0.3 (fixed in 15.0.3)

Published 2026-04-02. Last modified 2026-06-17.