CVE-2026-51729

CVE-2026-51729 affects the TOTOLINK T6 router (firmware 4.1.5cu.748_B20211015 ). The root cause is an incorrect access control in the delDevice function, reachable via a crafted POST request to /cgi-bin/cstecgi.cgi , which allows an unauthenticated attacker to request deletion of a managed slave ...

EUVD-2026-68750

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...

EUVD-2026-68586

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...

EUVD-2026-68585

Incorrect access control in the setWanCfg function of TOTOLINK T6 4.1.5cu.748B20211015 allows unauthenticated attackers to alter upstream provisioning and connectivity via sending a crafted POST request to /cgi-bin/cstecgi.cgi...

CVE-2026-51695

An incorrect access control flaw in the setDdnsCfg function of the TOTOLINK T6 router (firmware 4.1.5cu.748_B20211015 ) allows an unauthenticated attacker to alter the device's dynamic DNS configuration by sending a crafted POST request to /cgi-bin/cstecgi.cgi. The flaw scores CVSS 3.1: 7.5 (High...

CVE-2026-51689

Incorrect access control in the setUpgradeFW function of TOTOLINK T6 4.1.5cu.748B20211015 allows unauthenticated attackers to trigger firmware-upgrade workflow changes via sending a crafted POST request to /cgi-bin/cstecgi.cgi...

EUVD-2026-68636

Incorrect access control in the setManualDialCfg function of TOTOLINK T6 4.1.5cu.748B20211015 allows unauthenticated attackers to manipulate WAN dial state via sending a crafted POST request to /cgi-bin/cstecgi.cgi...

EUVD-2026-68651

Incorrect access control in the setDmzCfg function of TOTOLINK T6 4.1.5cu.748B20211015 allows unauthenticated attackers to expose an internal host via sending a crafted POST request to /cgi-bin/cstecgi.cgi...

EUVD-2026-68647

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

EUVD-2026-68634

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

CVE-2026-51723

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...

PT-2026-83890

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

CVE-2026-51736

TOTOLINK T6 firmware version 4.1.5cu.748_B20211015 contains an incorrect access control flaw in the clearSyslog function, reachable via a crafted POST request to /cgi-bin/cstecgi.cgi. Because no authentication is required, a network-based attacker can erase system logs , destroying evidence of pr...

EUVD-2026-68512

Incorrect access control in the getWiFiIpMacTable function of TOTOLINK T6 4.1.5cu.748B20211015 allows unauthenticated attackers to obtain Wi-Fi client MAC-to-IP mappings via sending a crafted POST request to /cgi-bin/cstecgi.cgi...

PT-2026-83932

Name of the Vulnerable Software and Affected Versions TOTOLINK T6 version 4.1.5cu.748 B20211015 Description Incorrect access control in the UploadFirmwareFile function allows unauthenticated attackers to upload a crafted firmware image. This is achieved by sending a crafted POST request to the...

CVE-2026-38577

Insecure hardcoded credentials in the Admin account of Tenda HG21 V4.0.0-260302 allows attackers to gain root access...

EUVD-2026-68712

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

EUVD-2026-68711

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

CVE-2026-51732

Incorrect access control in the delWiFiScheduleCfg 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

Incorrect access control in the informSlaveUpdate function of TOTOLINK T6 4.1.5cu.748B20211015 allows unauthenticated attackers to trigger mesh slave update coordination via sending a crafted POST request to /cgi-bin/cstecgi.cgi...