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CRITICALCVE-2026-21671Published Modified CNA hackerone

CVE-2026-21671: 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

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.

Metrics

CVSS v3.1
9.1
Severity
CRITICAL
Fixed in
13.0.1
Affected Products
1

Fix available

13.0.1
Affected packages
  • Veeam / Software Appliance
    < 13.0.1 (from 13.0.1)
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
References
CVE-2026-21671: 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 | HarborGuard CVE