1. Critical Update to MDaemon Antivirus Engine (MDaemon Antivirus Users)

2. Fix to Email Server and Webmail Vulnerablities

Published April 18, 2023

Summary
This update addresses 2 critical issues for MDaemon users:

1. The Cyren Malware Detection (antivirus engine) has been replaced and Cyren's proprietary Recurrent Pattern Detection/Outbreak Protection service has been removed (no longer available). This update adds a new Malware Detection (antivirus engine) to the MDaemon Antivirus feature in the MDaemon email server.

2. Vulnerabilities for Denial of Service (DOS) and Cross-Site Request Forgery (CSRF) were identified and addressed during testing or related bug reports.

Affected Software
The versions listed below have been tested and determined to be affected. We recommend that administrators download the appropriate version and language file listed below.

There are no known issues that customers may experience when downloading the update.

* This critical upgrade is free for all users. Customers must download the software version file for which they are eligible (the paid version in use whether the license is current or expired). If a different version is downloaded, that version will cease to work after 30 days. MDaemon Technologies recommends using the most current version available to receive the latest security and software features. Renew or Upgrade your license here. Supported versions can be found on the Support page.

Critical Update to SecurityGateway Antivirus Engine

Published April 18, 2023

Summary
The Cyren Malware Detection (antivirus engine) has been replaced and Cyren's proprietary Recurrent Pattern Detection/Outbreak Protection service has been removed (no longer available). This update adds a new Malware Detection (antivirus engine) to the software.

Affected Software
The versions listed below have been tested and determined to be affected. We recommend that administrators download the appropriate version and language file listed below.

There are no known issues that customers may experience when downloading the update.

* This critical upgrade is free for all users. Customers must download the software version file for which they are eligible (the paid version in use whether the license is current or expired). If a different version is downloaded, that version will cease to work after 30 days. MDaemon Technologies recommends using the most current version available to receive the latest security and software features. Renew or Upgrade your license here. Supported versions can be found on the Support page.

This download can be used to install the MDaemon Connector client on individual PCs running the Microsoft Outlook Client.