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Threats Tagged 'cve-2026-21666'

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Threats Tagged 'cve-2026-21666'

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CVE-2026-21666: Vulnerability in Veeam Backup and ReplicationCVE-2026-21666
0

CVE-2026-21666 is a critical remote code execution vulnerability in Veeam Backup and Replication version 12.3.2. It allows an authenticated domain user to execute arbitrary code on the Backup Server without user interaction. The vulnerability arises from improper access control (CWE-284), enabling privilege escalation and full system compromise. Exploitation requires low attack complexity and no user interaction, with a scope that affects confidentiality, integrity, and availability. Although no known exploits are currently in the wild, the critical CVSS score of 10 highlights the urgent need for mitigation. Organizations relying on Veeam Backup and Replication for data protection are at significant risk. Immediate patching or compensating controls are essential to prevent potential attacks. Countries with high adoption of Veeam products and critical infrastructure relying on backups are most at risk.

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