EUVD-2026-68716
GHSA-88wq-fpq9-cjr7
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Unauthenticated network access (AV:N/PR:N/AC:L) but the only described effect is changing the clock, an integrity-only impact (I:L) with no confidentiality or availability loss.
Primary rating from Vendor (mitre).
CVSS VectorVendor: mitre
Lifecycle Timeline
5DescriptionCVE.org
Incorrect access control in the NTPSyncWithHost function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to change the device clock via sending a crafted POST request to /cgi-bin/cstecgi.cgi.
AnalysisAI
Clock manipulation in the TOTOLINK T6 router (firmware 4.1.5cu.748_B20211015) lets remote unauthenticated attackers alter the device system time by sending a crafted POST request to the NTPSyncWithHost handler at /cgi-bin/cstecgi.cgi. The endpoint fails to enforce access control (CWE-284), so no credentials are needed. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires only network reachability to the router's web management interface (/cgi-bin/cstecgi.cgi) and the ability to send a crafted POST invoking the NTPSyncWithHost function on TOTOLINK T6 firmware 4.1.5cu.748_B20211015 - no authentication, credentials, or user interaction (PR:N/UI:N/AC:L). … 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, score 9.1) rates this Critical with high confidentiality and integrity impact, but this conflicts with the description, which limits the attacker's capability to changing the device clock - an integrity effect with no obvious confidentiality loss. … 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 at time of analysis; the references point to TOTOLINK's general site and download/advisory page rather than a specific fixed build, so check https://www.totolink.net/home/menu/detail/menu_listtpl/download/id/190/ids/36.html for an updated firmware for the T6 and apply it once available. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, conduct inventory scan to identify all TOTOLINK T6 routers and document their firmware versions to determine exposure scope. …
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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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