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CVE-2026-21671

CRITICAL CVSS 3.1: 9.1 EPSS 0.33%
Updated Mar 31, 2026
Veeam
Parameter Value
CVSS 9.1 (CRITICAL)
Affected Versions before 13.0.1.1071
Type CWE-94 (Code Injection)
Vendor Veeam
Public PoC No

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.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
High
Admin privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service

CVSS Vector v3.1

Weakness Type (CWE)

Vulnerable Products 1

Configuration From (including) Up to (excluding)
Veeam Veeam_Backup_\&_Replication
cpe:2.3:a:veeam:veeam_backup_\&_replication:*:*:*:*:*:*:*:*
<= 13.0.1.1071