A vulnerability was found in Totolink N300RH 3.2.4-B20220812 and classified as critical . This vulnerability affects the function setMacFilterRules of the file /cgi-bin/cstecgi.cgi of the component POST Request Handler . The manipulation of the argument mac_address results in buffer overflow. This vulnerability is cataloged as CVE-2026-7750 . The attack may be launched remotely. Furthermore, there is an exploit available.