Incorrect access control in the getOnlineClient function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to obtain online… (CVE-2026-51619)
Description
An incorrect access control vulnerability exists in the getOnlineClient function of TOTOLINK T6 firmware version 4.1.5cu.748_B20211015. This flaw allows unauthenticated attackers to obtain online client information by sending a crafted POST request to the /cgi-bin/cstecgi.cgi endpoint. No CVSS score or detailed impact metrics are provided. There is no information on available patches or vendor advisories. No known exploits in the wild have been reported.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability identified as CVE-2026-51619 involves improper access control in the getOnlineClient function of TOTOLINK T6 firmware 4.1.5cu.748_B20211015. An attacker without authentication can send a specially crafted POST request to the /cgi-bin/cstecgi.cgi CGI endpoint to retrieve online client information. The vulnerability allows unauthorized disclosure of potentially sensitive client data. No further technical details or exploitation methods are described in the provided data.
Potential Impact
The impact is unauthorized disclosure of online client information from the affected TOTOLINK T6 device. This could potentially expose network client details to unauthenticated attackers. No information is provided about further impact such as remote code execution or denial of service.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or workaround information is provided in the available data. Until a patch is available, restricting network access to the device's management interface may reduce exposure.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-q4r7-ff4v-586q
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-51619"]
Threat ID: 6a92f7f9acd9273b49e89bf5
Added to database: 08/29/2026, 15:17:13 UTC
Last enriched: 09/09/2026, 19:23:46 UTC
Last updated: 10/12/2026, 18:48:20 UTC
Views: 45
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