CVE-2026-51732
Deferred Deferred - Pending Action

Unauthenticated Wi-Fi Schedule Deletion in TOTOLINK T6

Publication date: 2026-08-31

Last updated on: 2026-08-31

Assigner: MITRE

Description
Incorrect access control in the delWiFiScheduleCfg function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to remove Wi-Fi schedule entries 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
2026-09-01
AI Q&A
2026-08-31
EPSS Evaluated
N/A
NVD
CVE-2026-51732
EUVD
EUVD-2026-68754

Affected Vendors & Products

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

Helpful Resources

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 delWiFiScheduleCfg function of TOTOLINK T6 firmware version 4.1.5cu.748_B20211015. It allows unauthenticated attackers to remove Wi-Fi schedule entries by sending a specially crafted POST request to the vulnerable endpoint /cgi-bin/cstecgi.cgi.

Detection Guidance

To detect this vulnerability, monitor network traffic for POST requests to /cgi-bin/cstecgi.cgi with parameters targeting delWiFiScheduleCfg. Check system logs for unauthorized modifications to Wi-Fi schedules.

Impact Analysis

An attacker could exploit this to disable Wi-Fi schedules, disrupting network access controls. This could lead to unauthorized network usage, reduced security, or denial of service for legitimate users relying on scheduled Wi-Fi access.

Compliance Impact

This vulnerability allows unauthenticated attackers to remove Wi-Fi schedule entries, which could disrupt network access controls. This may impact compliance with standards requiring strict access control, such as GDPR (data protection) or HIPAA (healthcare data security), by enabling unauthorized modifications to network configurations.

Mitigation Strategies

Immediately update the TOTOLINK T6 firmware to the latest version. Disable remote administration if not needed. Restrict access to /cgi-bin/cstecgi.cgi via firewall rules.

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