CVE-2025-53770CriticalMicrosoft CVSS 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:F/RL:W/RC:C

Microsoft security update for CVE-2025-53770 — Microsoft SharePoint

Published
July 19, 2025
Last Modified
—

🔗 CVE IDs covered (1)

CVE-2025-53770 →

📋 Microsoft's advisory

EchelonGraph does not copy Microsoft's advisory page: its FAQ and remediation text are not shown here. Read the advisory on https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-53770. This page also shows what EchelonGraph holds for CVE-2025-53770, with the description from its CVE record, which the CVE Numbering Authority that assigned the CVE wrote: for a CVE Microsoft assigned, often in the words of Microsoft's own advisory.

🎯 Affected products3

  • Microsoft SharePoint Enterprise Server 2016
  • Microsoft SharePoint Server 2019
  • Microsoft SharePoint Server Subscription Edition

✅ Updates Microsoft lists: 5 updates

5 rows: one per KB article or update, update type and fixed build. Their details are on Microsoft's advisory.

KB articleUpdateFixed build
—Security Update16.0.5513.1001
—Security Update16.0.5513.1001
—Security Update16.0.10417.20037
—Security Update16.0.10417.20037
—Security Update16.0.18526.20508

🧭 EchelonGraph on CVE-2025-53770

EchelonGraph score
9.8 CRITICAL
CISA KEV
Listed since July 20, 2025
Fix status
A fix is available — apply it.

Description from the CVE record (CVE.org), as published by its numbering authority

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.

Published by Microsoft Corporation, the CVE Numbering Authority that assigned CVE-2025-53770, in its CVE record at CVE.org; reused under the CVE Program's Terms of Use (its licence and MITRE's copyright notice are in our Terms of Service).

🔗 References (9)