Check Point Advisories

Microsoft Windows Search Buffer Overflow (CVE-2017-8543)

Vulnerability
Protection

Check Point Reference:	CPAI-2017-1988
Date Published:	13 Jun 2017
Severity:	Critical
Last Updated:	Tuesday 30 September, 2025
Source:	Microsoft CVE-2017-8543
Industry Reference:	CVE-2017-8543
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	Microsoft Windows 10 1507 Microsoft Windows 10 1511 Microsoft Windows 10 1607 Microsoft Windows 10 1703 Microsoft Windows 7 sp1 Microsoft Windows 8.1 Microsoft Windows rt 8.1 Microsoft Windows Server 2008 sp2 Microsoft Windows Server 2008 r2 sp1 Microsoft Windows Server 2012 Microsoft Windows Server 2012 r2 Microsoft Windows Server 2016
Vulnerability Description	A buffer overflow vulnerability exists in Microsoft Windows Search. 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 Windows Search Buffer Overflow (CVE-2017-8543) 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 Windows Search Buffer Overflow (CVE-2017-8543)