Input validation error in Backup & Replication - CVE-2025-23121
Published: June 17, 2025
Vulnerability identifier: #VU111218
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2025-23121
CWE-ID: CWE-20
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vendor: Veeam
Affected software:
Backup & Replication
Backup & Replication
Detailed vulnerability description
The vulnerability allows a remote user to compromise the Backup server.
The vulnerability exists due to insufficient validation of user-supplied input. A remote unprivileged domain user can send specially crafted request to the application and execute arbitrary code on the Backup server.
Note, this vulnerability only impacts domain-joined backup servers.
How to mitigate CVE-2025-23121
Install updates from vendor's website.