What is CVE-2022-0650?

CVE-2022-0650 is a vulnerability in the TP-Link TL-WR940N router that allows network-adjacent attackers to execute arbitrary code on affected installations.

What software is affected by CVE-2022-0650?

TP-Link TL-WR940N 3.20.1 Build 200316 Rel.34392n (5553) routers are affected by CVE-2022-0650.

What is the severity of CVE-2022-0650?

CVE-2022-0650 has a severity rating of high with a severity value of 8.

How can an attacker exploit CVE-2022-0650?

An attacker can exploit CVE-2022-0650 by sending specially crafted requests to the httpd service of the vulnerable router.

What is the fix for CVE-2022-0650?

To fix CVE-2022-0650, TP-Link TL-WR940N router users should update to the latest firmware version provided by TP-Link.

Vulnerability/
CVE-2022-0650

high

CWE

787 121

28/3/2023

2/8/2024

CVE-2022-0650: TP-Link TL-WR940N httpd newBridgessid Stack-based Buffer Overflow Remote Code Execution Vulnerability

First published: Tue Mar 28 2023(Updated: )

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of TP-Link TL-WR940N 3.20.1 Build 200316 Rel.34392n (5553) routers. Authentication is required to exploit this vulnerability. The specific flaw exists within the httpd service, which listens on TCP port 80 by default. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-13993.

Credit: zdi-disclosures@trendmicro.com

Affected Software	Affected Version	How to fix
TP-Link TL-WR940N
Tp-link Tl-wr940n Firmware	<211111
TP-Link TL-WR940N

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Reference Links

https://www.zerodayinitiative.com/advisories/ZDI-22-407/

Frequently Asked Questions

What is CVE-2022-0650?
CVE-2022-0650 is a vulnerability in the TP-Link TL-WR940N router that allows network-adjacent attackers to execute arbitrary code on affected installations.
What software is affected by CVE-2022-0650?
TP-Link TL-WR940N 3.20.1 Build 200316 Rel.34392n (5553) routers are affected by CVE-2022-0650.
What is the severity of CVE-2022-0650?
CVE-2022-0650 has a severity rating of high with a severity value of 8.
How can an attacker exploit CVE-2022-0650?
An attacker can exploit CVE-2022-0650 by sending specially crafted requests to the httpd service of the vulnerable router.
What is the fix for CVE-2022-0650?
To fix CVE-2022-0650, TP-Link TL-WR940N router users should update to the latest firmware version provided by TP-Link.

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