# CVE-2026-29138

## Summary

- **CVE ID:** CVE-2026-29138
- **Severity:** MEDIUM
- **CVSS Score:** 6.3 (CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N)
- **CWE:** CWE-90
- **Published:** Apr 2, 2026
- **Last Modified:** Apr 2, 2026

## Description

SEPPmail Secure Email Gateway before version 15.0.3 allows attackers with a specially crafted email address to claim another user's PGP signature as their own.

## Affected Products

- SEPPmail — Secure Email Gateway (0)

## References

- [CNA](https://downloads.seppmail.com/extrelnotes/150/ERN15.0.html#seppmail-vulnerability-disclosure-1503)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.22%
- **EPSS Percentile:** 12.1

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._