A vulnerability classified as critical was found in Tenda W15E 15.11.0.14. Affected by this vulnerability is the function formSetDebugCfg of the file /goform/setDebugCfg. The manipulation of the argument enable/level/module leads to stack-based buffer overflow. The CWE definition for the vulnerability is CWE-121. The weakness was published 04/24/2024. The advisory is shared at github.com. This vulnerability is known as CVE-2024-4122. The attack can be launched remotely. Technical details are available. Furthermore, there is an exploit available. The exploit has been disclosed to the public and may be used. The price for an exploit might be around USD $0-$5k at the moment. It is declared as proof-of-concept. It is possible to download the exploit at github.com. We expect the 0-day to have been worth approximately $0-$5k. The vendor was contacted early about this disclosure but did not respond in any way. A possible mitigation has been published even before and not after the disclosure of the vulnerability.