Incorrect access control in the setWiFiSignalCfg function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to reduce wireless… (CVE-2026-51688)
Description
An incorrect access control vulnerability exists in the setWiFiSignalCfg function of TOTOLINK T6 firmware version 4.1.5cu.748_B20211015. This flaw allows unauthenticated attackers to send crafted POST requests to the /cgi-bin/cstecgi.cgi endpoint to reduce wireless signal power or cause a denial of service (DoS). No patch or remediation information is currently available. There are no known exploits in the wild at this time.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability in TOTOLINK T6 4.1.5cu.748_B20211015 involves improper access control in the setWiFiSignalCfg function. An attacker without authentication can send specially crafted POST requests to the /cgi-bin/cstecgi.cgi endpoint, enabling them to reduce the wireless signal strength or trigger a denial of service condition. This could disrupt wireless connectivity for legitimate users. No CVSS score or detailed impact metrics are provided, and no patch or vendor advisory is currently available.
Potential Impact
Unauthenticated attackers can reduce wireless signal power or cause denial of service on affected TOTOLINK T6 devices running firmware 4.1.5cu.748_B20211015. This impacts wireless availability and could degrade network performance or connectivity for users relying on the device.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, consider restricting network access to the device's management interface and monitoring for suspicious POST requests to /cgi-bin/cstecgi.cgi.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-gj22-mg3h-w927
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-51688"]
Threat ID: 6a95befeacd9273b496676d4
Added to database: 08/31/2026, 17:50:54 UTC
Last enriched: 09/08/2026, 16:23:35 UTC
Last updated: 10/16/2026, 18:48:21 UTC
Views: 35
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