CVE-2022-24355

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 not required to exploit this vulnerability. The specific flaw exists within the parsing of file name extensions. 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-13910.

SeverityHigh
CVSS8.8
Exploit probability—
ProductTp-link Tl-wr940n Firmware
PublishedFeb 18, 2022
First seenFeb 18, 2022
Weakness typeCWE-121CWE-121

How to fix

Update
  • tp-link tl-wr940n_firmware211111 or later

Affected products

ProductAffected versionsFixed in
tp-link tl-wr940n_firmwarev < 211111211111

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