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CVE-2026-29133

MEDIUM CVSS 4.0: 5.3 EPSS 0.05%
Updated Apr 16, 2026
Seppmail
Parameter Value
CVSS 5.3 (MEDIUM)
Affected Versions 0 — 15.0.3
Fixed In 15.0.3
Type CWE-20 (Improper Input Validation)
Vendor Seppmail
Public PoC No

SEPPmail Secure Email Gateway before version 15.0.3 allows an attacker to upload PGP keys with UIDs that do not match their email address.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
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

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