A vulnerability has been identified and remediated in all supported versions of the Commvault software. Webservers can be compromised through bad actors creating and executing webshells.

Exploiting this vulnerability requires a bad actor to have authenticated user credentials within the Commvault Software environment. Unauthenticated access is not exploitable. For software customers, this means your environment must be: (i) accessible via the internet, (ii) compromised through an unrelated avenue, and (iii) accessed leveraging legitimate user credential

We've previously, publicly and privately, analysed vulnerabilities in various ‘Backup and Replication’ platforms, including those offered by Veeam and NAKIVO - both of which have struggled to avoid scrutiny and in some cases, even opting to patch issues silently.

However, we’re glad to see that sense prevails - kudos to NAKIVO for acknowledging CVE-2024-48248 from our previous research and publicly responding to a new XXE vulnerability (CVE-2025-32406).

Backup and Replication solutions have become prime targets for ransomware operators for logical reasons — Veeam, for instance, has already seen widespread exploitation in the wild.