CVE-2026-51716

CVE-2026-51716 affects the TOTOLINK T6 router running firmware 4.1.5cu.748_B20211015 . An incorrect access control in the delPortForwardRules function allows an unauthenticated attacker to delete port-forwarding rules by sending a crafted POST request to /cgi-bin/cstecgi.cgi . The primary impact ...

CVE-2026-51698

An incorrect access control vulnerability in the setUrlFilterRules function of the TOTOLINK T6 router (firmware 4.1.5cu.748_B20211015 ) allows an unauthenticated, remote attacker to alter URL browsing policies by sending a crafted POST request to /cgi-bin/cstecgi.cgi. The flaw is rated CVSS 9.1 (...

EUVD-2026-68642

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

EUVD-2026-68643

Incorrect access control in the setSmartQosCfg function of TOTOLINK T6 4.1.5cu.748B20211015 allows unauthenticated attackers to degrade traffic handling via sending a crafted POST request to /cgi-bin/cstecgi.cgi...

EUVD-2026-68635

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

CVE-2026-51722

Incorrect access control in the setWiFiRepeaterCfg function of TOTOLINK T6 4.1.5cu.748B20211015 allows unauthenticated attackers to repoint the device to an attacker-controlled upstream Wi-Fi via sending a crafted POST request to /cgi-bin/cstecgi.cgi...

EUVD-2026-68648

Server-side request forgery SSRF in the /har/test endpoint in QD 20220208 through 20250803. Fetcher.buildrequest in libs/fetcher.py constructs an httpclient.HTTPRequest from user-supplied JSON without validating URL scheme, host, or IP range. The /har/test handler does not require authentication,...

EUVD-2026-68650

Incorrect access control in the setWiFiAdvancedCfg function of TOTOLINK T6 4.1.5cu.748B20211015 allows unauthenticated attackers to degrade wireless behavior 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...

EUVD-2026-68672

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

EUVD-2026-68675

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

EUVD-2026-68671

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

EUVD-2026-68753

Incorrect access control in the FirmwareUpgrade function of TOTOLINK T6 4.1.5cu.748B20211015 allows unauthenticated attackers to remove Wi-Fi schedule entries via sending a crafted POST request to /cgi-bin/cstecgi.cgi...

CVE-2026-51734

An incorrect access control vulnerability in the informSlaveUpdate function of the TOTOLINK T6 (firmware 4.1.5cu.748_B20211015) allows an unauthenticated network attacker to trigger mesh slave update coordination by sending a crafted POST request to /cgi-bin/cstecgi.cgi. The CNA-assigned CVSS 3.1...

EUVD-2026-68713

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-2026-51736

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

PT-2026-83891

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

CVE-2026-51738

Incorrect access control in the LoadDefSettings function of TOTOLINK T6 4.1.5cu.748B20211015 allows unauthenticated attackers to reset the device configuration and reboot the device via sending a crafted POST request to /cgi-bin/cstecgi.cgi...

CVE-2026-51721

TOTOLINK T6 (firmware 4.1.5cu.748_B20211015 ) is affected by an incorrect access control flaw in the setPairCfg function. An unauthenticated attacker can alter the mesh pairing state by sending a crafted POST request to /cgi-bin/cstecgi.cgi over the network with no privileges or user interaction ...