High · 8.8 CVE-2026-21668 EUVD-2026-11577

A vulnerability allowing an authenticated domain user to bypass restrictions and manipulate arbitrary files on a Backup Repository.

Published Mar 12, 2026 · Updated May 10, 2026 · Assigned by hackerone

Vendor: Veeam Product: Backup and Replication

Description

A vulnerability allowing an authenticated domain user to bypass restrictions and manipulate arbitrary files on a Backup Repository.

Affected products

Vendor	Product	Affected	Fixed
Veeam	Backup and Replication	12.3.2 – < 12.3.2	12.3.2

Advisories 2

WID-SEC-2026-0709 Veeam Backup & Replication: Mehrere Schwachstellen BSI CERT-Bund (WID) · Mar 12, 2026
NCSC-2026-0096 Kwetsbaarheden verholpen in Veeam Backup & Replication NCSC-NL (Netherlands) · Mar 12, 2026

References

https://www.veeam.com/kb4830