CVE-2025-53770 — Microsoft SharePoint Server Remote Code Execution Vulnerability
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 f…
Published: 2025-07-20 · CVSS: 9.8 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7