CVE-2026-21666 | Veeam Backup and Replication up to 12.3.1 access control (kb4830 / WID-SEC-2026-0709)
A vulnerability labeled as critical has been found in Veeam Backup and Replication up to 12.3.1. Affected is an unknown function. Executing a manipulation can lead to improper access controls.
This vulnerability appears as CVE-2026-21666. The attack may be performed from remote. There is no available exploit.
The affected component should be upgraded.