Deserialization of Untrusted Data in Microsoft products - CVE-2025-62204
Published: November 11, 2025
Vulnerability identifier: #VU118273
CSH Severity: Medium
CVSS v4: 8.5 [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]
CVE-ID: CVE-2025-62204
CWE-ID: CWE-502
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to insecure input validation when processing serialized data in Microsoft SharePoint. A remote user can pass specially crafted data to the application and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
Microsoft SharePoint Server Subscription Edition
Microsoft SharePoint Enterprise Server
Microsoft SharePoint Server
Microsoft SharePoint Enterprise Server
Microsoft SharePoint Server
How to mitigate CVE-2025-62204
Install updates from vendor's website.