Check Point Advisories

Microsoft SharePoint Server Remote Code Execution (CVE-2026-63520)

Check Point Reference: CPAI-2026-10596
Date Published: 26 Aug 2026
Severity: High
Last Updated: Wednesday 26 August, 2026
Source:
Industry Reference:CVE-2026-63520
Protection Provided by:

Security Gateway
R81, R80, R77, R75
Who is Vulnerable? Microsoft SharePoint Enterprise Server 2016 prior to 16.0.5565.1001
Microsoft SharePoint Server 2019 prior to 16.0.10417.20198
Microsoft SharePoint Server Subscription Edition prior to 16.0.19725.20522
Vulnerability Description A remote code execution vulnerability in Microsoft SharePoint Server allows an unauthorized attacker to execute code over a network.

Protection Overview

This protection detects attempts to exploit this vulnerability.

In order for the protection to be activated, update your Security Gateway product to the latest IPS update. For information on how to update IPS, go to SBP-2006-05, click on Protection tab and select the version of your choice.

Security Gateway R81 / R80 / R77 / R75

  1. In the IPS tab, click Protections and find the Microsoft SharePoint Server Remote Code Execution (CVE-2026-63520) protection using the Search tool and Edit the protection's settings.
  2. Install policy on all Security Gateways.

This protection's log will contain the following information:

Attack Name:  Windows SMB Protection Violation.
Attack Information:  Microsoft SharePoint Server Remote Code Execution (CVE-2026-63520)

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