CVE-2026-21671

critical

Description

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.

References

https://thehackernews.com/2026/03/veeam-patches-7-critical-backup.html

https://www.veeam.com/kb4831

Details

Source: Mitre, NVD

Published: 2026-03-12

Updated: 2026-03-12

Risk Information

CVSS v2

Base Score: 8.3

Vector: CVSS2#AV:N/AC:L/Au:M/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 9.1

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

Severity: Critical

EPSS

EPSS: 0.00207