CVE-2025-53770
Published: Jul 20, 2025
Modified: Feb 26, 2026
CVSS v3.1
9.8
Description
Deserialization of untrusted data in on-premises Microsoft SharePoint Server allows an unauthorized attacker to execute code over a network. Microsoft is aware that an exploit for CVE-2025-53770 exists in the wild. Microsoft is preparing and fully testing a comprehensive update to address this vulnerability. In the meantime, please make sure that the mitigation provided in this CVE documentation is in place so that you are protected from exploitation.
| Vendor | Product | Versions |
|---|---|---|
Microsoft | Microsoft SharePoint Enterprise Server 2016 | affected 16.0.0 - < 16.0.5513.1001 |
Microsoft | Microsoft SharePoint Server 2019 | affected 16.0.0 - < 16.0.10417.20037 |
Microsoft | Microsoft SharePoint Server Subscription Edition | affected 16.0.0 - < 16.0.18526.20508 |
Weaknesses (CWE)
CVSS v3.1 Details
CVSS v3.1 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:F/RL:W/RC:C
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
References
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