Veeam Backup & Replication RCE Flaw Lets Domain Users Run Remote Code
Summary
Veeam has released security patches for a critical remote code execution (RCE) vulnerability in its Backup & Replication software. The flaw, identified as CVE-2026-44963, allows authenticated domain users to execute arbitrary code on the backup server.
IFF Assessment
This vulnerability allows for remote code execution by authenticated domain users, which poses a significant threat to data integrity and availability.
Severity
The CVSS score of 9.4 indicates a critical severity, reflecting the potential for remote code execution by an authenticated domain user, which has a high impact on confidentiality, integrity, and availability.
Defender Context
Defenders should prioritize patching Veeam Backup & Replication to mitigate this critical RCE vulnerability. This incident highlights the importance of securing backup infrastructure, as compromised backup systems can lead to further data loss or ransomware attacks.