A vulnerability, which was classified as critical, has been found in Totolink LR1200GB 9.1.0u.6619_B20230130. This issue affects the function setSmsCfg of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument text leads to stack-based buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-250787. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.