Check Point Advisories

Microsoft Windows Information Disclosure (CVE-2026-50508)

Vulnerability
Protection

Check Point Reference:	CPAI-2026-8260
Date Published:	5 Jul 2026
Severity:	High
Last Updated:	Sunday 05 July, 2026
Source:
Industry Reference:	CVE-2026-50508
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	Microsoft Windows 10 Version 1607 10.0.14393.0 and later, prior to 10.0.14393.9234 Microsoft Windows 11 Version 22H2 10.0.22621.0 and later, prior to 10.0.22631.7219 Microsoft Windows Server 2012 6.2.9200.0 and later, prior to 6.2.9200.26132 Microsoft Windows Server 2012 (Server Core installation) 6.2.9200.0 and later, prior to 6.2.9200.26132 Microsoft Windows Server 2012 R2 6.3.9600.0 and later, prior to 6.3.9600.23228 Microsoft Windows Server 2012 R2 (Server Core installation) 6.3.9600.0 and later, prior to 6.3.9600.23228 Microsoft Windows Server 2016 10.0.14393.0 and later, prior to 10.0.14393.9234 Microsoft Windows Server 2016 (Server Core installation) 10.0.14393.0 and later, prior to 10.0.14393.9234 Microsoft Windows Server 2022 10.0.20348.0 and later, prior to 10.0.20348.5256 Microsoft Windows Server Version 2004 10.0.0 and later, prior to 10.0.19045.7417
Vulnerability Description	An information disclosure vulnerability in Microsoft Windows allows an unauthorized attacker to perform spoofing 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

In the IPS tab, click Protections and find the Microsoft Windows Information Disclosure (CVE-2026-50508) 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: Microsoft Windows Operating System.
Attack Information: Microsoft Windows Information Disclosure (CVE-2026-50508)