Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Unauthenticated network access with low complexity (PR:N/AC:L), but described impact is limited to altering the parental-control feature, so C:N and I:L rather than the input's C:H/I:H.
Primary rating from Vendor (mitre).
CVSS VectorVendor: mitre
Lifecycle Timeline
4DescriptionCVE.org
Incorrect access control in the setParentalRules function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to alter parental-control behavior via sending a crafted POST request to /cgi-bin/cstecgi.cgi.
AnalysisAI
Improper access control in the TOTOLINK T6 router (firmware 4.1.5cu.748_B20211015) lets remote unauthenticated attackers modify parental-control settings by sending a crafted POST request to the setParentalRules handler at /cgi-bin/cstecgi.cgi. The flaw requires no authentication and no user interaction, so anyone able to reach the device's web interface can alter or disable parental restrictions. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires network reachability to the router's HTTP management endpoint /cgi-bin/cstecgi.cgi and the ability to send a POST request invoking the setParentalRules function on TOTOLINK T6 firmware 4.1.5cu.748_B20211015; per CVSS PR:N/UI:N no authentication or user interaction is needed. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The input CVSS is 9.1 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N), which reflects network-reachable, low-complexity, unauthenticated access - genuinely easy to trigger. … 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 identified in the provided data; consult the TOTOLINK firmware download page (https://www.totolink.net/home/menu/detail/menu_listtpl/download/id/190/ids/36.html) for a build newer than 4.1.5cu.748_B20211015 and apply it once available. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all TOTOLINK T6 routers in production, prioritizing firmware version 4.1.5cu.748_B20211015, and immediately restrict network access to the management interface through firewall rules-block inbound access to the web UI except from authorized administrative networks. …
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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
EUVD-2026-68640
GHSA-rcw5-25cw-v2gc