Dear EWC users,

As part of a critical security maintenance activity on the EUMETSAT side of the European Weather Cloud (EWC), we will be applying security updates to address two recently identified CVEs affecting the underlying infrastructure.

All CPU compute hosts have already been patched without user impact. However, due to the nature of the GPU infrastructure and the required host restart procedure, a maintenance window with service interruption is necessary for GPU-enabled instances.

Only GPU VMs hosted on the affected EUMETSAT compute nodes will be impacted by this maintenance.

To complete the patching process, the affected GPU VMs will be shut down during the maintenance window and powered on again once the work has been completed.

The maintenance is scheduled for Thursday, 5 November 2026, from 16:00 to 19:00 UTC.

During this period, the affected GPU VMs will be unavailable. We recommend that users stop, save, or checkpoint any running workloads before the maintenance begins.

For updates during the maintenance, please refer to the EWC service status page https://www.europeanweather.cloud/service-status.

As always, If you encounter any issues after switching to the new endpoint, please be in touch via https://chat.europeanweather.cloud or https://support.europeanweather.cloud

We apologize for any inconvenience and appreciate your understanding as we carry out this essential work to maintain the security and reliability of the EWC platform.

Kind regards,

EWC Team (EUMETSAT Side)