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CVE-2026-29131

MEDIUM CVSS 4.0: 4.9 EPSS 0.04%
Updated Apr 16, 2026
Seppmail
Parameter Value
CVSS 4.9 (MEDIUM)
Affected Versions 0 — 15.0.3
Fixed In 15.0.3
Type CWE-90
Vendor Seppmail
Public PoC No

SEPPmail Secure Email Gateway before version 15.0.3 allows attackers with a specially crafted email address to read the contents of emails encrypted for other users.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
Present
Additional conditions required
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
None
No data leak
Integrity
None
No data modification
Availability
None
No disruption

CVSS Vector v4.0

Weakness Type (CWE)

Vulnerable Products 2

Configuration From (including) Up to (excluding)
Seppmail Seppmail_Secure_Email_Gateway
cpe:2.3:a:seppmail:seppmail_secure_email_gateway:*:*:*:*:*:*:*:*
0 15.0.3
Seppmail Secure_Email_Gateway
cpe:2.3:a:seppmail:secure_email_gateway:*:*:*:*:*:*:*:*
15.0.3