Veeam disclosed seven critical RCEs in Backup & Replication on March 13, 2026, five carrying CVSS 9.9, affecting all version 12 builds through 12.3.2.4165 and all version 13 builds prior to 13.0.1.2067; exploitation requires only authenticated domain user or backup viewer access, setting a low bar for abuse. Veeam backup infrastructure has a documented history as a ransomware pre-compromise target — groups including Akira, BlackBasta, Cuba, and FIN7 have exploited prior Veeam vulnerabilities — making this cluster an elevated priority for any organization with enterprise backup exposure. Upgrade to v13.0.1.2067 or later, or apply Veeam’s official v12 patch immediately; enforce network segmentation on Veeam management interfaces and audit RBAC roles while patching is underway. Note: NVD publication status confirmed only for CVE-2026-21668 at audit date; verify remaining CVEs directly against NVD before finalizing remediation documentation.