VULNERABILITY INTELLIGENCE
CVE-2026-21671
CVSS score9.1 CRITICAL
EPSS probability1.38%
CISA KEVNot currently listed
Published2026-03-12
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
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.
Weakness classification
- CWE-94: Improper Control of Generation of Code ('Code Injection')
- CWE-693: Protection Mechanism Failure
Primary references
- support@hackerone.com — Vendor Advisory