CVE-2005-1138: Kerio Mailserver

Medium severity, CVSS 5.0. EPSS: 1.2% chance of exploitation in the next 30 days.

Unknown vulnerability in WebMail in Kerio MailServer before 6.0.9 allows remote attackers to cause a denial of service (CPU consumption) via certain e-mail messages.

Affected products

• Kerio Kerio Mailserver: version 5.0 only; version 5.1 only; version 5.1.1 only; version 5.6.3 only; version 5.6.4 only; version 5.6.5 only; …

Published 2005-04-18. Last modified 2026-06-16.