Protection mechanism failure in Backup & Replication - CVE-2026-21668
Published: March 12, 2026
Vulnerability identifier: #VU123969
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-21668
CWE-ID: CWE-693
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Veeam
Affected software:
Backup & Replication
Backup & Replication
Detailed vulnerability description
The vulnerability allows a remote user to bypass implemented security restrictions.
The vulnerability exists due to insufficient implementation of security measures. A remote authenticated domain user can bypass restrictions and manipulate arbitrary files on a Backup Repository.
How to mitigate CVE-2026-21668
Install updates from vendor's website.