CVE-2026-21671
CriticalSummary
The vulnerability allows an authenticated user with the Backup Administrator role to perform remote code execution (RCE) in high availability (HA) deployments of Veeam Backup & Replication.
Risk Assessment
Organizations may face serious security threats as an attacker could exploit this vulnerability to remotely execute code on the system.
Recommendation
It is recommended to restrict access to the Backup Administrator role and to implement security patches provided by Veeam.
Other vulnerabilities in Veeam Backup & Replication
See all- CVE-2026-21672High
A vulnerability allowing local privilege escalation on Windows-based Veeam Backup & Replication servers.
- CVE-2025-64393Critical
This vulnerability in Veeam Backup & Replication allows a Backup Viewer to execute arbitrary code as SYSTEM on the backup server.
- CVE-2025-48983Critical
A vulnerability in the Mount service of Veeam Backup & Replication allows for remote code execution (RCE) on the Backup infrastructure hosts by an authenticated domain user.
- CVE-2024-40711CriticalActively exploited
A deserialization of untrusted data vulnerability with a malicious payload can allow an unauthenticated remote code execution (RCE).
- CVE-2023-27532HighActively exploited
Vulnerability in Veeam Backup & Replication component allows encrypted credentials stored in the configuration database to be obtained. This may lead to gaining access to the backup infrastructure hosts.
- CVE-2022-26501CriticalActively exploited
Veeam Backup & Replication 10.x and 11.x has Incorrect Access Control (issue 1 of 2).
- CVE-2022-26500HighActively exploited
Improper limitation of path names in Veeam Backup & Replication 9.5U3, 9.5U4, 10.x, and 11.x. A remote authenticated user can access internal API functions and upload and execute arbitrary code.
- CVE-2026-93026Medium
This vulnerability in Veeam Backup & Replication allows a Backup Viewer to modify the Enterprise Manager master key and stored antivirus update credentials.
- CVE-2026-58069High
This vulnerability in Veeam Backup & Replication allows an authenticated Cloud Connect tenant to read arbitrary files on the service provider host.
Original NVD description (English source)
A vulnerability allowing an authenticated user with the Backup Administrator role to perform remote code execution (RCE) in high availability (HA) deployments of Veeam Backup & Replication.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS