CVE-2026-21671

CriticalCVSS 9.1/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 9.1/10CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Weakness enumeration

CWE-94CWE-693

Affected software

No affected versions have been published.

Timeline

Published
Mar 12, 2026
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2026-21671: Critical severity, CVSS 9.1 | Vulnix