What’s Vulnerable › Vulnerabilities
CVE-2026-27444: Header Email Address Parsing
- Severity: high (CVSS 7.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.2% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-03-04 · updated 2026-06-17
- Weakness: CWE-436
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: before 15.0.1 — fixed in 15.0.1
How to fix
Upgrade to a fixed version: SEPPmail 15.0.1. Check the vendor advisory for mitigations.
References
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