A vulnerability categorized as critical has been discovered in TOTOLINK A3700R 9.1.2u.5822_B20200513. This affects the function
setWiFiEasyGuestCfg of the file /cgi-bin/cstecgi.cgi. Executing a manipulation of the argument ssid can lead to buffer overflow.
The identification of this vulnerability is CVE-2026-1143. The attack may be launched remotely. Furthermore, there is an exploit available.