Check Point Advisories

Cisco IOS Buffer Overflow (CVE-2017-6736)

Vulnerability
Protection

Check Point Reference:	CPAI-2019-0540
Date Published:	22 Apr 2019
Severity:	High
Last Updated:	Thursday 24 July, 2025
Source:
Industry Reference:	CVE-2017-6736
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	Cisco IOS from v12.0 up to v12.4 Cisco IOS from v15.0 up to v15.6 Cisco IOS XE from v2.2.0 up to v3.17
Vulnerability Description	A buffer overflow vulnerability exists in Cisco IOS. Successful exploitation of this vulnerability could allow a remote attacker to execute arbitrary code on the affected system or cause application crashes.

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 Cisco IOS Buffer Overflow (CVE-2017-6736) 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: Cisco Protection Violation.
Attack Information: Cisco IOS Buffer Overflow (CVE-2017-6736)