EUVD-2026-68650
GHSA-9vmv-42p8-w38f
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Unauthenticated network config change to a single function that only degrades wireless behavior implies limited integrity and availability impact and no confidentiality disclosure, so C:N/I:L/A:L rather than the feed's C:H/I:H.
Primary rating from Vendor (mitre).
CVSS VectorVendor: mitre
Lifecycle Timeline
4DescriptionCVE.org
Incorrect access control in the setWiFiAdvancedCfg function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to degrade wireless behavior via sending a crafted POST request to /cgi-bin/cstecgi.cgi.
AnalysisAI
Unauthenticated wireless-configuration tampering in the TOTOLINK T6 router (firmware 4.1.5cu.748_B20211015) lets remote attackers reach the setWiFiAdvancedCfg handler through the /cgi-bin/cstecgi.cgi endpoint without credentials and alter advanced Wi-Fi settings to degrade wireless service. The flaw is an improper access-control (CWE-284) issue on a CGI function that should require authentication. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires network reachability to the TOTOLINK T6's HTTP management interface and the ability to send a crafted POST request to the /cgi-bin/cstecgi.cgi endpoint targeting the setWiFiAdvancedCfg function; per CVSS PR:N/UI:N no authentication or user interaction is needed against the affected firmware (4.1.5cu.748_B20211015). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The signals conflict and should be weighed carefully. … 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 patched firmware version is independently confirmed in the available data; check the TOTOLINK firmware/download portal (https://www.totolink.net/home/menu/detail/menu_listtpl/download/id/190/ids/36.html) for an updated T6 build superseding 4.1.5cu.748_B20211015 and apply it once published. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all TOTOLINK T6 routers on the network and confirm firmware versions, prioritizing those running 4.1.5cu.748_B20211015 or earlier. …
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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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