Vulnerability · Published Nov 4, 2026 · Assigned by NCSC.ch
CVE-2026-114421Empty initial password permits GINA account takeover
High 8.3
In plain English
A high-severity security flaw in SEPPmail Secure Email Gateway (SEG) from SEPPmail AG. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 23% of all known vulnerabilities).
Official description
SEPPmail Secure Email Gateway before 15.1.1 permits password recovery for a created but unregistered GINA account whose initial password is empty without adequately verifying ownership. A remote unauthenticated attacker who identifies such an account can set a new password, authenticate as that account, and prevent the intended recipient from using it until recovery.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| SEPPmail AG | SEPPmail Secure Email Gateway (SEG) | 0 – before 15.1.1 |
Weakness: CWE-640 · Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N