Description
A vulnerability allowing a low-privileged local user to write arbitrary files with SYSTEM privileges during the installation of Veeam Backup for Microsoft 365, which can lead to privilege escalation or denial of service.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Veeam | Backup for Microsoft 365 | 8.0 – ≤ 8.6.0.1102 | — |
Advisories 1
- WID-SEC-2026-4217 Veeam Backup für Microsoft 365: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 27, 2026