Command Injection Vulnerability in SEPPmail Secure Email Gateway
CVE-2026-27441

9.5CRITICAL

Key Information:

Vendor

Seppmail

Status
Secure Email Gateway
Vendor
CVE Published:
4 March 2026

What is CVE-2026-27441?

The SEPPmail Secure Email Gateway prior to version 15.0.1 contains a security flaw related to the improper handling of PDF encryption passwords. This vulnerability can be exploited to execute OS commands remotely, posing a significant risk to the impacted systems. Proper updates and mitigations are essential to safeguard against potential threats.

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:
9.5
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
Physical
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Andris Suter-Dörig
Matteo Scarlata
Kenny Paterson
.