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CRITICAL · 9.1

CVE-2026-29133

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.

Vulnerability Description

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.

CVSS Score

9.1

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
NONE

Affected Products

VendorProductVersions
SeppmailSecure Email Gateway< 15.0.3

Related Weaknesses (CWE)

CWE-20

References

FAQ

What is CVE-2026-29133?

CVE-2026-29133 is a vulnerability with a CVSS score of 9.1 (CRITICAL). 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.

How severe is CVE-2026-29133?

CVE-2026-29133 has been rated CRITICAL with a CVSS base score of 9.1/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2026-29133?

Check the references section above for vendor advisories and patch information. Affected products include: Seppmail Secure Email Gateway.