CVE-2026-51675

TOTOLINK T6 routers running firmware 4.1.5cu.748_B20211015 contain an incorrect access control flaw in the setWanIeCfg function. An unauthenticated attacker can send a crafted POST request to /cgi-bin/cstecgi.cgi to reconfigure the device's uplink settings, achieving high confidentiality and inte...

CVE-2026-51728

Incorrect access control in the UploadFirmwareFile function of TOTOLINK T6 4.1.5cu.748B20211015 allows unauthenticated attackers to upload a crafted firmware image via sending a crafted POST request to /cgi-bin/cstecgi.cgi...

CVE-2026-51670

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

EUVD-2026-68538

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

CVE-2026-51710

TOTOLINK T6 routers running firmware 4.1.5cu.748_B20211015 contain an incorrect access control vulnerability in the setParentalRules function. An unauthenticated attacker on the network can send a crafted POST request to /cgi-bin/cstecgi.cgi to alter parental-control behavior , with high impact t...

PT-2026-83876

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

EUVD-2026-68533

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

CVE-2026-51683

TOTOLINK T6 router (firmware 4.1.5cu.748_B20211015 ) contains an incorrect access control flaw in the setLanCfg function. An unauthenticated attacker on the adjacent network can alter LAN network configuration by sending a crafted POST request to /cgi-bin/cstecgi.cgi. The CVSS v3.1 score is 4.3 (...

CVE-2026-51666

TOTOLINK T6 (firmware 4.1.5cu.748_B20211015 ) contains an incorrect access control flaw in the setWizardCfg function. An unauthenticated attacker on the adjacent network can send a crafted POST request to /cgi-bin/cstecgi.cgi to reconfigure WAN, Wi-Fi, and device initialization state , with low i...

CVE-2026-51722

CVE-2026-51722 affects the TOTOLINK T6 Wi-Fi router (firmware 4.1.5cu.748_B20211015). An incorrect access control flaw in the setWiFiRepeaterCfg function allows an unauthenticated attacker to send a crafted POST request to /cgi-bin/cstecgi.cgi and repoint the device to an attacker-controlled upst...

CVE-2026-51723

CVE-2026-51723 is an incorrect access control vulnerability in the UploadCustomModule function of the TOTOLINK T6 router (version 4.1.5cu.748_B20211015). An unauthenticated attacker can send a crafted POST request to /cgi-bin/cstecgi.cgi to install a custom CGI module on the device. The CVSS 3.1 ...

CVE-2026-51719

CVE-2026-51719 affects the TOTOLINK T6 router running firmware 4.1.5cu.748_B20211015 . An incorrect access control flaw in the delUrlFilterRules function allows an unauthenticated attacker to remove URL filtering rules by sending a crafted POST request to /cgi-bin/cstecgi.cgi . The CVSS v3.1 scor...

CVE-2026-51705

TOTOLINK T6 routers running firmware 4.1.5cu.748_B20211015 contain an incorrect access control flaw in the setWiFiMeshName function. An unauthenticated attacker can send a crafted POST request to /cgi-bin/cstecgi.cgi to rename mesh entries , with a CVSS 3.1 score of 9.8 (CRITICAL) reflecting high...

CVE-2026-51725

CVE-2026-51725 is an incorrect access control vulnerability in the NTPSyncWithHost function of TOTOLINK T6 (version 4.1.5cu.748_B20211015). An unauthenticated remote attacker can send a crafted POST request to /cgi-bin/cstecgi.cgi to change the device clock, rated CVSS 9.1 (CRITICAL) with high co...

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-2026-51688

Incorrect access control in the setWiFiSignalCfg function of TOTOLINK T6 4.1.5cu.748B20211015 allows unauthenticated attackers to reduce wireless power or cause a Denial of Service DoS via sending a crafted POST request to /cgi-bin/cstecgi.cgi...

CVE-2026-51700

An incorrect access control flaw in the setWiFiAdvancedCfg function of the TOTOLINK T6 router (firmware 4.1.5cu.748_B20211015 ) allows an unauthenticated remote attacker to degrade wireless behavior by sending a crafted POST request to /cgi-bin/cstecgi.cgi. The CVSS 3.1 score is 9.1 (CRITICAL) wi...

CVE-2026-51737

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

EUVD-2026-68751

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

EUVD-2026-68749

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