Check Point Advisories

Microsoft SharePoint Remote Code Execution (CVE-2026-65660)

Vulnerability
Protection

Check Point Reference:	CPAI-2026-12682
Date Published:	24 Sep 2026
Severity:	Critical
Last Updated:	Monday 28 September, 2026
Source:
Industry Reference:	CVE-2026-65660
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	Microsoft SharePoint Enterprise Server 2016 16.0.0 and later, prior to 16.0.5565.1001 Microsoft SharePoint Server 2019 16.0.0 and later, prior to 16.0.10417.20198 Microsoft SharePoint Server Subscription Edition 16.0.0 and later, prior to 16.0.19725.20522
Vulnerability Description	A remote code execution vulnerability exists in Microsoft SharePoint. Successful exploitation of this vulnerability could allow a remote attacker to execute arbitrary code on the affected system.

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

In the IPS tab, click Protections and find the Microsoft SharePoint Remote Code Execution (CVE-2026-65660) protection using the Search tool and Edit the protection's settings.
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 Remote Code Execution (CVE-2026-65660)