CVE-2026-84831
SEPPmail Secure Email Gateway before 15.0.7 creates a fully privileged session before required multi-factor authentication enrollment is completed. An attacker with the password for an MFA-required but unenrolled account can access protected functionality without providing a second factor.
- Published Sep 3, 2026
- CVSS 7.7 high
- 0.5% chance of exploitation in the next 30 days (EPSS)
- A fix is available