CVE-2026-21671 CRITICAL

CVE-2026-21671

Vendor Veeam
Product Software Appliance
Published March 12, 2026
Last update May 10, 2026
View on NVD All CVEs

CVSS base score

9.1/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

March 12, 2026 CVE published
May 10, 2026 Record updated