EUVD-2026-67923
GHSA-qr9r-gw2q-g279
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Unauthenticated remote read of low-sensitivity NTP config/time only, so C:L and I:N/A:N; the input's C:H/I:H is unsupported by the disclosure-only description.
Primary rating from Vendor (mitre).
CVSS VectorVendor: mitre
Lifecycle Timeline
5DescriptionCVE.org
Incorrect access control in the getNtpCfg function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to obtain NTP configuration and current time data via sending a crafted POST request to /cgi-bin/cstecgi.cgi.
AnalysisAI
Information disclosure in the TOTOLINK T6 router (firmware 4.1.5cu.748_B20211015) lets remote unauthenticated attackers read the device's NTP configuration and current system time by sending a crafted POST request to /cgi-bin/cstecgi.cgi and invoking the getNtpCfg handler, which performs no access-control check. No public exploit identified at time of analysis and EPSS is low (0.18%, 7th percentile), indicating little observed exploitation interest despite the high advertised CVSS. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires network reachability to the TOTOLINK T6 management web server (default LAN-facing; internet-facing only if remote/WAN administration is enabled) and the ability to send a POST request to /cgi-bin/cstecgi.cgi targeting the getNtpCfg function on firmware 4.1.5cu.748_B20211015. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The input CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N, 9.1 Critical) claims both high confidentiality and high integrity impact, but this conflicts with the description, which states only that NTP configuration and current time are disclosed - a read-only information leak with no stated modification capability. … 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 version is identified at time of analysis; check the TOTOLINK download/advisory page (https://www.totolink.net/home/menu/detail/menu_listtpl/download/id/190/ids/36.html) for updated T6 firmware 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, audit your inventory to identify all TOTOLINK T6 routers currently deployed, with priority given to internet-facing or externally accessible devices. …
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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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