# CVE-2026-27444

## Summary

- **CVE ID:** CVE-2026-27444
- **Severity:** HIGH
- **CVSS Score:** 7.8 (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:L/SI:H/SA:N)
- **CWE:** CWE-436
- **Published:** Mar 4, 2026
- **Last Modified:** Mar 12, 2026

## Description

SEPPmail Secure Email Gateway before version 15.0.1 incorrectly interprets email addresses in the email headers, causing an interpretation conflict with other mail infrastructure that allows an attacker to fake the source of the email or decrypt it.

## Affected Products

- SEPPmail — Secure Email Gateway (0)

## References

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

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.21%
- **EPSS Percentile:** 11.6

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._