Improper Authorization in Microsoft Office SharePoint
CVE-2026-47298

8HIGH

Key Information:

Vendor

Microsoft
Status
Microsoft Sharepoint Enterprise Server 2016
Microsoft Sharepoint Server 2019
Microsoft Sharepoint Server Subscription Edition
Vendor
CVE Published:
9 June 2026

What is CVE-2026-47298?

A vulnerability in Microsoft Office SharePoint arises from improper authorization mechanisms, allowing an authorized attacker to execute arbitrary code over a network. This flaw enables potential exploitation by leveraging the trust established with an authorized user, thus posing a significant security risk for organizations relying on SharePoint. It is vital for users to be aware of this issue to take necessary precautions and apply updates as recommended by Microsoft.

Affected Version(s)

Microsoft SharePoint Enterprise Server 2016 x64-based Systems 16.0.0 < 16.0.5556.1005

Microsoft SharePoint Server 2019 x64-based Systems 16.0.0 < 16.0.10417.20153

Microsoft SharePoint Server Subscription Edition x64-based Systems 16.0.0 < 16.0.19725.20384

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE...
vendor-advisorypatch

CVSS V3.1

Score:
8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.