Vulnerability · Published Sep 3, 2026 · Assigned by NCSC.ch
CVE-2026-84830OS command injection in privileged configuration handling
High 8.6
In plain English
A high-severity OS command injection in Secure Email Gateway 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 1.2% (higher than 69% of all known vulnerabilities).
Severity (CVSS 4.0)8.6High
Exploit odds (30 days)1.2%top 30.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
SEPPmail Secure Email Gateway before 15.0.7 contains a command injection vulnerability that allows authenticated administrators to execute commands with elevated privileges.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| SEPPmail AG | Secure Email Gateway | 0 – before 15.0.7 |
Weakness: CWE-78, CWE-269 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N