Veeam Backup & Replication: CVE-2026-21666 and Related RCE Fixes

Veeam released security updates for Backup & Replication (v12 build 12.3.2.4465 and v13 build 13.0.1.2067) addressing eight CVEs that include multiple authenticated RCE paths (CVSS 9.9), RCE-as-postgres for Backup Viewer, SSH credential extraction, and a Windows local privilege escalation; no active exploitation was reported, and the vendor and defenders are advised to apply the fixes and restrict administrative access to reduce risk.