A vulnerability, which was classified as critical, has been found in Tenda G3 15.11.0.17(9502). This issue affects the function formModifyPppAuthWhiteMac of the file /goform/ModifyPppAuthWhiteMac. The manipulation of the argument pppoeServerWhiteMacIndex leads to stack-based buffer overflow. The CWE definition for the vulnerability is CWE-121. The weakness was presented 04/25/2024. It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2024-4164. The attack may 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 pricing for an exploit might be around USD $0-$5k at the moment. It is declared as proof-of-concept. The exploit is available 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 before and not just after the disclosure of the vulnerability.