Improper Authorization in Microsoft products - CVE-2025-21400
Published: February 11, 2025
Vulnerability identifier: #VU103790
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2025-21400
CWE-ID: CWE-285
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Microsoft
Affected software:
Microsoft SharePoint Server
Microsoft SharePoint Server Subscription Edition
Microsoft SharePoint Enterprise Server
Microsoft SharePoint Server
Microsoft SharePoint Server Subscription Edition
Microsoft SharePoint Enterprise Server
Detailed vulnerability description
The vulnerability allows a remote attacker to bypass authorization checks.
The vulnerability exists due to insufficient authorization controls in Microsoft SharePoint Server. A remote user can trick a victim to connect to a malicious server and execute arbitrary code on the target system.
How to mitigate CVE-2025-21400
Install updates from vendor's website.