Security Advisory

CVE-2025-53770

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2025-07-20 01:06:33

Last updated 2026-02-26 17:50:26

Assigner microsoft

State PUBLISHED

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.

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