EUVD-2026-68511
GHSA-82vp-8cqc-4mmv
Severity by source
AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Adjacent vector retained per description; availability raised to Low because WAN and Wi-Fi reconfiguration can disrupt network service for all users on the device.
Primary rating from Vendor (mitre).
CVSS VectorVendor: mitre
Lifecycle Timeline
3DescriptionCVE.org
Incorrect access control in the setWizardCfg function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to reconfigure WAN, Wi-Fi, and device initialization state via sending a crafted POST request to /cgi-bin/cstecgi.cgi.
AnalysisAI
Incorrect access control in TOTOLINK T6 router firmware 4.1.5cu.748_B20211015 exposes the setWizardCfg CGI endpoint to unauthenticated reconfiguration by any attacker with adjacent network access. An actor on the same local network segment can issue a crafted POST request to /cgi-bin/cstecgi.cgi to silently overwrite WAN settings, Wi-Fi parameters, or device initialization state without supplying any credentials. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires the attacker to occupy an adjacent network position - specifically, connected to the same LAN segment or Wi-Fi network served by the TOTOLINK T6 (AV:A per the provided CVSS vector). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS score of 4.3 (Medium) accurately reflects the moderate real-world risk once the adjacent-network constraint is factored in: exploitation is bounded to attackers already present on the same LAN or Wi-Fi segment as the router, substantially narrowing the attacker population compared to internet-facing vulnerabilities. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | No patched firmware version has been confirmed in the available data sources. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-284 – Improper Access Control
View allSame technique Authentication Bypass
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External POC / Exploit Code
Leaving vuln.today