Account Takeover via GINA Reset in SEPPmail

Publication date: 2026-04-02

Last updated on: 2026-04-16

Assigner: Switzerland Government Common Vulnerability Program

Description

SEPPmail Secure Email Gateway before version 15.0.3 allows account takeover by abusing GINA account initialization to reset a victim account password.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-04-02

Last Modified

2026-04-16

Generated

2026-07-06

AI Q&A

2026-04-02

EPSS Evaluated

2026-07-05

NVD

CVE-2026-29139

EUVD

EUVD-2026-18158

Affected Vendors & Products

Vendor	Product	Version / Range
seppmail	secure_email_gateway	to 15.0.3 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-288	The product requires authentication, but the product has an alternate path or channel that does not require authentication.

Attack-Flow Graph

Executive Summary

This vulnerability exists in SEPPmail Secure Email Gateway versions before 15.0.3. It allows an attacker to take over an account by exploiting the GINA account initialization process to reset the password of a victim's account.

Impact Analysis

The vulnerability can lead to an attacker gaining unauthorized access to user accounts by resetting their passwords. This account takeover can compromise sensitive email communications and potentially allow further malicious activities within the affected system.

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