Enterprise data backup platform Commvault has revealed that an unknown nation-state threat actor breached its Microsoft Azure environment by exploiting CVE-2025-3928 but emphasized there is no evidence of unauthorized data access. "This activity has affected a small number of customers we have in common with Microsoft, and we are working with those customers to provide assistance," the company
Commvault is a New Jersey-based cloud resilience platform that offers solutions such as data management, disaster recovery and file storage optimization for enterprises.