CVE-2026-51714
Received Received - Intake

Incorrect Access Control in TOTOLINK T6 Router

Publication date: 2026-08-31

Last updated on: 2026-08-31

Assigner: MITRE

Description
Incorrect access control in the setRoamingCfg function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to alter roaming behavior via sending a crafted POST request to /cgi-bin/cstecgi.cgi.

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Meta Information

Published
2026-08-31
Last Modified
2026-08-31
Generated
2026-08-31
AI Q&A
2026-08-31
EPSS Evaluated
N/A
NVD
CVE-2026-51714
EUVD
EUVD-2026-68635

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
totolink t6 4.1.5cu.748_b20211015

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This vulnerability is an incorrect access control issue in the setRoamingCfg function of TOTOLINK T6 firmware version 4.1.5cu.748_B20211015. It allows unauthenticated attackers to change roaming behavior by sending a specially crafted POST request to the vulnerable endpoint /cgi-bin/cstecgi.cgi.

Detection Guidance

Detect this vulnerability by checking for unauthorized POST requests to /cgi-bin/cstecgi.cgi targeting the setRoamingCfg function. Monitor network traffic for unusual roaming configuration changes or unexpected access to this endpoint.

Impact Analysis

An attacker could exploit this to alter network roaming settings without authentication, potentially disrupting network operations or enabling further attacks on connected devices.

Mitigation Strategies

Immediately update the TOTOLINK T6 firmware to the latest version. Disable remote access to the web interface if not required. Restrict access to /cgi-bin/cstecgi.cgi via firewall rules. Monitor logs for suspicious POST requests to this endpoint.

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