Incorrect access control in the getAccessDeviceCfg function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to obtain… (CVE-2026-51614)
Description
An incorrect access control vulnerability exists in the getAccessDeviceCfg function of TOTOLINK T6 version 4.1.5cu.748_B20211015. This flaw allows unauthenticated attackers to obtain access-device policy and client state information by sending a crafted POST request to /cgi-bin/cstecgi.cgi. The vulnerability has a medium severity rating with a CVSS score of 4.3.
CVSS v3.1
Score 4.3medium
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The TOTOLINK T6 firmware version 4.1.5cu.748_B20211015 contains an access control weakness in the getAccessDeviceCfg function. This vulnerability permits unauthenticated remote attackers to retrieve sensitive access-device policy and client state information by issuing a specially crafted POST request to the /cgi-bin/cstecgi.cgi endpoint. The flaw is categorized under CWE-284 (Improper Access Control) and does not require user interaction or privileges to exploit.
Potential Impact
An attacker can obtain sensitive configuration and client state information from the device without authentication. This information disclosure could aid further attacks or reconnaissance but does not directly impact integrity or availability.
Mitigation Recommendations
No patch or official fix information is currently available. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is released, restrict access to the affected endpoint and monitor for suspicious POST requests targeting /cgi-bin/cstecgi.cgi.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-fmmv-8xc9-f8gr
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-51614"]
Threat ID: 6a92f7fbacd9273b49e8adbf
Added to database: 08/29/2026, 15:17:15 UTC
Last enriched: 09/09/2026, 19:23:14 UTC
Last updated: 10/11/2026, 18:48:20 UTC
Views: 25
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