A vulnerability has been found in Tenda W15E 15.11.0.14 and classified as critical. This vulnerability affects the function formSetStaticRoute of the file /goform/setStaticRoute. The manipulation of the argument staticRouteIndex leads to stack-based buffer overflow. Using CWE to declare the problem leads to CWE-121. The weakness was presented 04/24/2024. The advisory is shared for download at github.com. This vulnerability was named CVE-2024-4125. The attack can be initiated remotely. Technical details are available. Furthermore, there is an exploit available. The exploit has been disclosed to the public and may be used. The current price for an exploit might be approx. USD $0-$5k at the moment. It is declared as proof-of-concept. It is possible to download the exploit at github.com. As 0-day the estimated underground price was around $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.