EUVD-2026-67922
GHSA-f3xj-g53c-x6j9
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Network-reachable unauthenticated endpoint with no complexity; C:H reflects leaked cloud management URL enabling follow-on attacks; no integrity or availability impact.
Primary rating from Vendor (mitre).
CVSS VectorVendor: mitre
Lifecycle Timeline
5DescriptionCVE.org
Incorrect access control in the getCrpcConfig function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to obtain cloud remote-control status and URL information via sending a crafted POST request to /cgi-bin/cstecgi.cgi.
AnalysisAI
Unauthenticated information disclosure in TOTOLINK T6 firmware 4.1.5cu.748_B20211015 exposes cloud remote-control configuration data via the getCrpcConfig function at /cgi-bin/cstecgi.cgi. Any network-reachable attacker can submit a crafted POST request without credentials to retrieve the device's cloud remote-protocol-control (CRPC) enable status and management URL. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | No authentication is required; the /cgi-bin/cstecgi.cgi endpoint accepts getCrpcConfig requests from any network-reachable host without validating credentials, consistent with CVSS PR:N and the 'Authentication Bypass' tag. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 base score of 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N) reflects a fully remote, zero-authentication read exposure, and the C:H rating is defensible if the leaked cloud management URL enables follow-on attacks against TOTOLINK's backend or the device's cloud control plane. … 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 | Consult the TOTOLINK firmware download portal at https://www.totolink.net/home/menu/detail/menu_listtpl/download/id/190/ids/36.html for an updated firmware image addressing the getCrpcConfig access-control deficiency; no specific patched version number is confirmed in the available data, so monitor the CVE coordination repository at https://github.com/DarkBoulder/CVE-Vendor-Coordination/blob/main/TOTOLINK/README.md for patch confirmation. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: Conduct inventory of TOTOLINK T6 devices running firmware 4.1.5cu.748_B20211015 or earlier; map network access paths to each device; disable cloud remote-control (CRPC) if not operationally required. …
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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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