A vulnerability, which was classified as critical , has been found in Totolink N300RH 3.2.4-B20220812 . Affected by this vulnerability is the function loginauth of the file /cgi-bin/cstecgi.cgi of the component Parameter Handler . Performing a manipulation of the argument Password results in buffer overflow. This vulnerability is identified as CVE-2026-7747 . The attack can be initiated remotely. Additionally, an exploit exists.