EUVD-2026-68353

A vulnerability was found in TOTOLINK NR1800X 9.1.0u.6681B20230703. Impacted is the function setUploadSetting of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument FileName results in stack-based buffer overflow. The attack can be executed remotely. The exploit has been made public a...

CVE-2026-82597

A vulnerability was identified in TOTOLINK NR1800X 9.1.0u.6681B20230703. This affects the function setUssd of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument ussd leads to command injection. The attack can be initiated remotely. The exploit is publicly available and might be used...

CVE-2026-82597

A command injection vulnerability exists in TOTOLINK NR1800X (version 9.1.0u.6681_B20230703), specifically in the setUssd function of /cgi-bin/cstecgi.cgi . Manipulating the ussd argument allows a remote attacker with low privileges to inject arbitrary commands. The attack requires no user intera...

CVE-2026-82597 TOTOLINK NR1800X cstecgi.cgi setUssd command injection

A vulnerability was identified in TOTOLINK NR1800X 9.1.0u.6681B20230703. This affects the function setUssd of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument ussd leads to command injection. The attack can be initiated remotely. The exploit is publicly available and might be used...

EUVD-2026-68300

A vulnerability was identified in TOTOLINK NR1800X 9.1.0u.6681B20230703. This affects the function setUssd of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument ussd leads to command injection. The attack can be initiated remotely. The exploit is publicly available and might be used...

CVE-2026-51717

TOTOLINK T6 firmware 4.1.5cu.748_B20211015 contains an incorrect access control flaw in the setOpModeCfg function, allowing unauthenticated attackers to change the device's operating mode by sending a crafted POST request to /cgi-bin/cstecgi.cgi. The CVSS 3.1 score is 9.1 (Critical) with high con...

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...

CVE-2026-51688

CVE-2026-51688 affects the TOTOLINK T6 router running firmware 4.1.5cu.748_B20211015 . The root cause is an incorrect access control in the setWiFiSignalCfg function, which is exposed via the endpoint /cgi-bin/cstecgi.cgi. An unauthenticated attacker on the network can send a crafted POST request...

CVE-2026-51726

CVE-2026-51726 is an incorrect access control vulnerability in the delParentalRules function of TOTOLINK T6 firmware 4.1.5cu.748_B20211015 . Unauthenticated remote attackers can send a crafted POST request to /cgi-bin/cstecgi.cgi to remove parental-control rules. The CVSS 3.1 score is 9.1 (CRITIC...

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...

PT-2026-83852

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

EUVD-2026-68649

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

CVE-2026-51713

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...

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-2026-51703

Incorrect access control in the setWiFiScheduleCfg function of TOTOLINK T6 4.1.5cu.748B20211015 allows unauthenticated attackers to alter when Wi-Fi is available via sending a crafted POST request to /cgi-bin/cstecgi.cgi...

CVE-2026-51733

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-2026-51713

CVE-2026-51713 affects the TOTOLINK T6 router (firmware 4.1.5cu.748_B20211015 ). An incorrect access control flaw in the setManualDialCfg function allows unauthenticated attackers to manipulate the WAN dial state by sending a crafted POST request to /cgi-bin/cstecgi.cgi . The CVSS 3.1 score is 9....

PT-2026-83977

Name of the Vulnerable Software and Affected Versions TOTOLINK T6 version 4.1.5cu.748 B20211015 Description Incorrect access control in the LoadDefSettings function allows unauthenticated attackers to reset the device configuration and reboot the device. This is achieved by sending a crafted POST...

CVE-2026-51706

TOTOLINK T6 routers running firmware 4.1.5cu.748_B20211015 are affected by an incorrect access control flaw in the setSmartQosCfg function. An unauthenticated attacker on an adjacent network can send a crafted POST request to /cgi-bin/cstecgi.cgi to degrade traffic handling , resulting in a low a...

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...