EUVD-2026-68754
GHSA-53cw-gg7h-mc83
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Network-reachable CGI endpoint requiring no authentication (PR:N confirmed by access control bypass); impact confined to integrity of Wi-Fi schedule data only.
Primary rating from Vendor (mitre).
CVSS VectorVendor: mitre
Lifecycle Timeline
4DescriptionCVE.org
Incorrect access control in the delWiFiScheduleCfg function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to remove Wi-Fi schedule entries via sending a crafted POST request to /cgi-bin/cstecgi.cgi.
AnalysisAI
Unauthenticated access control bypass in TOTOLINK T6 firmware 4.1.5cu.748_B20211015 allows any network-reachable attacker to delete Wi-Fi schedule entries without credentials by sending a crafted POST request to /cgi-bin/cstecgi.cgi. The delWiFiScheduleCfg CGI handler fails to enforce authentication before processing deletion requests, enabling unauthorized modification of time-based Wi-Fi access control policies. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The router's web management interface (/cgi-bin/cstecgi.cgi) must be network-reachable by the attacker. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 score of 5.3 (Medium) is broadly appropriate: the vulnerability is network-reachable with no authentication or user interaction required, but the integrity impact is limited (Low) and there is no confidentiality or availability component - an attacker can only delete Wi-Fi scheduling rules, not execute code or read credentials. … 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 vendor-released patch with an explicit fixed firmware version has been identified from available references at time of analysis. … 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
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