High
Mandatory MFA bypass before enrollment
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.
Announced Group revision 1
Original source ↗CVE-2026-84831
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-84831
SEPPmail Secure Email Gateway (SEG)
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "SEPPmail AG",
"product": "SEPPmail Secure Email Gateway (SEG)",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "15.0.7",
"versionType": "custom"
}
],
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-84831
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #12448 · Revision 1
- Added to Heist Feed
- Publisher date