Incorrect access control in the getWanCfg function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to obtain WAN configuration… (CVE-2026-51622)
Description
An incorrect access control vulnerability exists in the getWanCfg function of TOTOLINK T6 firmware version 4.1.5cu.748_B20211015. This flaw allows unauthenticated attackers to obtain WAN configuration data by sending a specially crafted POST request to the /cgi-bin/cstecgi.cgi endpoint.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The TOTOLINK T6 router firmware version 4.1.5cu.748_B20211015 contains an access control vulnerability in the getWanCfg function. An attacker can exploit this by sending a crafted POST request to the /cgi-bin/cstecgi.cgi CGI endpoint, which improperly restricts access, thereby allowing retrieval of WAN configuration data without authentication.
Potential Impact
An unauthenticated attacker can obtain sensitive WAN configuration information from the affected device. This exposure could potentially aid in further network reconnaissance or attacks, but no direct code execution or denial of service is described.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch information is provided at this time.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-j65q-2cwp-c6px
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-51622"]
Threat ID: 6a92f7f9acd9273b49e89bfe
Added to database: 08/29/2026, 15:17:13 UTC
Last enriched: 09/09/2026, 19:23:41 UTC
Last updated: 10/12/2026, 06:48:17 UTC
Views: 21
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