Veeam Backup & Replication: Schwachstelle ermöglicht Codeausführung
WID-SEC-2026-1834 · first 09.06.2026 · updated 10.06.2026 · CVSS 9,9
What it is about
Veeam Backup & Replication ist eine Datensicherungslösung für VMware vSphere- und Microsoft Hyper-V-Umgebungen. Ein entfernter, authentisierter Angreifer kann eine Schwachstelle in Veeam Backup & Replication ausnutzen, um beliebigen Programmcode auszuführen.
Under what conditions?
Over the network, but only with valid access (login required), for example with stolen credentials or as an insider.
What can happen in the worst case
An attacker could use the vulnerability to
- beliebigen Programmcode auszuführen
Am I affected?
Affected according to the BSI:
- Veeam Backup & Replication <12.3.2.4854
The installed version is usually shown under “Help → About” or in the device’s admin interface.
What helps?
Update to at least:
- Veeam Backup & Replication 12.3.2.4854
Is the vulnerability already being exploited?
None of the CVEs is in the CISA catalogue of exploited vulnerabilities. That does not mean there are no attacks, only that none are documented.
Information and sources
- Original BSI advisory (WID)
- Vulnerability Resolved in Veeam Backup & Replication 12.3.2.4854 vom 2026-06-09 www.veeam.com
CVE: CVE-2026-44963
Source: BSI warning and information service (CERT-Bund); CISA. The assessment of the conditions is my reading of the BSI text; the external pages are in their original language.