Email Gateway Vulnerability in SEPPmail Secure Email Gateway
CVE-2026-2746

6.9MEDIUM

Key Information:

Vendor

Seppmail

Status
Secure Email Gateway
Vendor
CVE Published:
4 March 2026

What is CVE-2026-2746?

The SEPPmail Secure Email Gateway prior to version 15.0.1 lacks proper communication regarding PGP signature verification results. This flaw can leave users vulnerable to undetected forged emails, compromising the integrity and authenticity of email communications.

Affected Version(s)

Secure Email Gateway 0 < 15.0.1

References

https://downloads.seppmail.com/extrelnotes/150/ERN15.0.ht...
release-notes

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Andris Suter-Dörig
Matteo Scarlata
Kenny Paterson
.