CVE-2026-27444
HIGHSEPPmail Secure Email Gateway <15.0.1 - Auth Bypass
Title source: llmDescription
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.
Scores
CVSS v3
7.5
EPSS
0.0003
EPSS Percentile
8.4%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Classification
CWE
CWE-436
Status
published
Affected Products (1)
seppmail/seppmail
< 15.0.1
Timeline
Published
Mar 04, 2026
Tracked Since
Mar 04, 2026