CVE-2022-0650

High

Description

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.

SeverityHigh

CVSS8.0

Exploit probability—

Product

Tp-link Tl-wr940n Firmware

PublishedMar 28, 2023

First seenMar 28, 2023

Weakness typeCWE-121CWE-121

How to fix

Update

tp-link tl-wr940n_firmware211111 or later

Affected products

Product	Affected versions	Fixed in
tp-link tl-wr940n_firmware	v < 211111	211111

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.