CVE-2026-51638

The TOTOLINK T6 (version 4.1.5cu.748_B20211015 ) is vulnerable to an incorrect access control flaw within the getWiFiGuestCfg function. An unauthenticated attacker can exploit this by sending a crafted POST request to /cgi-bin/cstecgi.cgi to obtain sensitive guest Wi-Fi configuration information....

CVE-2026-51638: Improper Access Control

Incorrect access control in the getWiFiGuestCfg function of TOTOLINK T6 4.1.5cu.748B20211015 allows unauthenticated attackers to obtain guest Wi-Fi configuration information via sending a crafted POST request to /cgi-bin/cstecgi.cgi...

CVE-2026-51638

Incorrect access control in the getWiFiGuestCfg function of TOTOLINK T6 4.1.5cu.748B20211015 allows unauthenticated attackers to obtain guest Wi-Fi configuration information via sending a crafted POST request to /cgi-bin/cstecgi.cgi...

EUVD-2026-67886

Incorrect access control in the getWiFiGuestCfg function of TOTOLINK T6 4.1.5cu.748B20211015 allows unauthenticated attackers to obtain guest Wi-Fi configuration information via sending a crafted POST request to /cgi-bin/cstecgi.cgi...