CVE-2026-2746
Received Received - Intake

PGP Signature Verification Bypass in SEPPmail Secure Email Gateway

Publication date: 2026-03-04

Last updated on: 2026-03-05

Assigner: Switzerland Government Common Vulnerability Program

Description
SEPPmail Secure Email Gateway before version 15.0.1 does not properly communicate PGP signature verification results, leaving users unable to detect forged emails.

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Meta Information

Published
2026-03-04
Last Modified
2026-03-05
Generated
2026-07-06
AI Q&A
2026-03-04
EPSS Evaluated
2026-07-05
NVD
CVE-2026-2746
EUVD
EUVD-2026-9383

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
seppmail seppmail to 15.0.1 (exc)

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-347 The product does not verify, or incorrectly verifies, the cryptographic signature for data.

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Executive Summary

This vulnerability affects SEPPmail Secure Email Gateway versions before 15.0.1. The software does not properly communicate the results of PGP signature verification, which means users cannot reliably detect if an email's signature has been forged.

Impact Analysis

Because the software fails to properly indicate whether a PGP signature is valid, users may be unable to identify forged or tampered emails. This can lead to accepting fraudulent messages as legitimate, potentially resulting in security breaches, misinformation, or unauthorized actions based on forged communications.

Compliance Impact

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