Check Point Advisories

TP-Link WR2041 Buffer Overflow (CVE-2021-26827)

Vulnerability
Protection

Check Point Reference:	CPAI-2021-0257
Date Published:	9 Jun 2021
Severity:	High
Last Updated:	Wednesday 09 June, 2021
Source:
Industry Reference:	CVE-2021-26827
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	TP-Link WR2041 v1 firmware
Vulnerability Description	A buffer overflow vulnerability exists in TP-Link WR2041. Successful exploitation of this vulnerability could allow a remote attacker to cause an application crash.

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 TP-Link WR2041 Buffer Overflow (CVE-2021-26827) 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: Application Servers Protection Violation.
Attack Information: TP-Link WR2041 Buffer Overflow (CVE-2021-26827)