CVE-2026-51671: Improper Access Control

Incorrect access control in the getCloudDownloadStatus function of TOTOLINK T6 4.1.5cu.748B20211015 allows unauthenticated attackers to obtain cloud firmware download state information via sending a crafted POST request to /cgi-bin/cstecgi.cgi...

PT-2026-83965

Incorrect access control in the clearSyslog function of TOTOLINK T6 4.1.5cu.748 B20211015 allows unauthenticated attackers to erase system logs via sending a crafted POST request to /cgi-bin/cstecgi.cgi...

PT-2026-83930

Incorrect access control in the delParentalRules function of TOTOLINK T6 4.1.5cu.748 B20211015 allows unauthenticated attackers to remove parental-control rules via sending a crafted POST request to /cgi-bin/cstecgi.cgi...

PT-2026-83893

Incorrect access control in the delUrlFilterRules function of TOTOLINK T6 4.1.5cu.748 B20211015 allows unauthenticated attackers to remove URL filtering rules via sending a crafted POST request to /cgi-bin/cstecgi.cgi...

PT-2026-83823

Incorrect access control in the setWanIeCfg function of TOTOLINK T6 4.1.5cu.748 B20211015 allows unauthenticated attackers to reconfigure uplink settings via sending a crafted POST request to /cgi-bin/cstecgi.cgi...

EUVD-2026-68641

Incorrect access control in the setWiFiBasicCfg function of TOTOLINK T6 4.1.5cu.748B20211015 allows unauthenticated attackers to reconfigure primary Wi-Fi settings via sending a crafted POST request to /cgi-bin/cstecgi.cgi...

PT-2026-83933

Incorrect access control in the delDevice function of TOTOLINK T6 4.1.5cu.748 B20211015 allows unauthenticated attackers to request deletion of a managed slave device via sending a crafted POST request to /cgi-bin/cstecgi.cgi...

PT-2026-83816

Incorrect access control in the setScheduleCfg function of TOTOLINK T6 4.1.5cu.748 B20211015 allows unauthenticated attackers to configure forced reboot tasks via sending a crafted POST request to /cgi-bin/cstecgi.cgi...

PT-2026-83927

Incorrect access control in the UploadCustomModule function of TOTOLINK T6 4.1.5cu.748 B20211015 allows unauthenticated attackers to install a custom CGI module via sending a crafted POST request to /cgi-bin/cstecgi.cgi...

EUVD-2026-68587

Incorrect access control in the setWiFiGuestCfg function of TOTOLINK T6 4.1.5cu.748B20211015 allows unauthenticated attackers to establish or weaken guest wireless access via sending a crafted POST request to /cgi-bin/cstecgi.cgi...

EUVD-2026-68540

Incorrect access control in the setUPnPCfg function of TOTOLINK T6 4.1.5cu.748B20211015 allows unauthenticated attackers to change UPnP service state via sending a crafted POST request to /cgi-bin/cstecgi.cgi...

PT-2026-83872

Incorrect access control in the setWiFiMeshName function of TOTOLINK T6 4.1.5cu.748 B20211015 allows unauthenticated attackers to rename mesh entries via sending a crafted POST request to /cgi-bin/cstecgi.cgi...

CVE-2026-51698: Improper Access Control

Incorrect access control in the setUrlFilterRules function of TOTOLINK T6 4.1.5cu.748B20211015 allows unauthenticated attackers to alter browsing policies via sending a crafted POST request to /cgi-bin/cstecgi.cgi...

PT-2026-83854

Incorrect access control in the setVpnPassCfg function of TOTOLINK T6 4.1.5cu.748 B20211015 allows unauthenticated attackers to weaken edge filtering via sending a crafted POST request to /cgi-bin/cstecgi.cgi...

CVE-2026-51740

Incorrect access control in the killProcess function of TOTOLINK T6 4.1.5cu.748B20211015 allows unauthenticated attackers to terminate critical services via sending a crafted POST request to /cgi-bin/cstecgi.cgi...

CVE-2026-51691

Incorrect access control in the setUploadSetting function of TOTOLINK T6 4.1.5cu.748B20211015 allows unauthenticated attackers to manipulate the upload or flash workflow via sending a crafted POST request to /cgi-bin/cstecgi.cgi...

CVE-2026-51731

The TOTOLINK T6 wireless dual-band Mesh router (firmware version 4.1.5cu.748_B20211015 ) is vulnerable to an incorrect access control flaw in the delVlanCfg function. This vulnerability allows unauthenticated attackers to remove VLAN entries by sending a specially crafted POST request to the /cgi...

PT-2026-83885

Incorrect access control in the setWiFiWpsStart function of TOTOLINK T6 4.1.5cu.748 B20211015 allows unauthenticated attackers to open a wireless pairing window via sending a crafted POST request to /cgi-bin/cstecgi.cgi...

PT-2026-83812

Incorrect access control in the getSlaveUpdate function of TOTOLINK T6 4.1.5cu.748 B20211015 allows unauthenticated attackers to query slave upgrade status and affect upgrade bookkeeping via sending a crafted POST request to /cgi-bin/cstecgi.cgi...

PT-2026-83827

Incorrect access control in the setPasswordCfg function of TOTOLINK T6 4.1.5cu.748 B20211015 allows unauthenticated attackers to change the administrator account via sending a crafted POST request to /cgi-bin/cstecgi.cgi...