Blacklist databases updated regularly to mitigate zero-day vulnerabilities. Integrated Gateway Antivirus
While version 9.4.2 was released in 2022, it built upon the foundation of the 9.4.x series and incorporated many fixes and features that addressed needs identified in 2021 and earlier. It is the definitive release for users seeking a stable, well-rounded UTM platform. The official release notes for Kerio Control 9.4.2, published on , outline the following key updates: kerio control 942 2021
Disclaimer: Version 9.4.2 was released in October 2022. For the latest features and security patches as of 2026, it is highly recommended to update to the most recent version available via the GFI AppManager or the Kerio Control administration panel. The official release notes for Kerio Control 9
For those still deploying second-hand 942 units or maintaining legacy infrastructure, follow these best practices: follow this procedure to disable GRO:
If you are running 9.4.2 Patch 1 and experiencing these symptoms, follow this procedure to disable GRO: