EUVD-2026-68741
GHSA-w4gg-446c-rvf6
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Unauthenticated low-complexity network request to an exposed CGI endpoint (AV:N/AC:L/PR:N/UI:N); described impact is service termination only, so A:H with C:N/I:N 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 killProcess function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to terminate critical services via sending a crafted POST request to /cgi-bin/cstecgi.cgi.
AnalysisAI
Denial of service in the TOTOLINK T6 router (firmware 4.1.5cu.748_B20211015) lets remote unauthenticated attackers terminate critical services by sending a crafted POST request to the killProcess handler at /cgi-bin/cstecgi.cgi. The endpoint fails to enforce access control (CWE-284), so any network-reachable attacker can disrupt device operation. …
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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 interface and the ability to send a POST request to the /cgi-bin/cstecgi.cgi endpoint invoking the killProcess action; no authentication, credentials, or user interaction are needed (PR:N/UI:N), and it works against the affected T6 firmware 4.1.5cu.748_B20211015. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The input CVSS is 9.8 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H), reflecting trivial, unauthenticated, low-complexity network exploitation. … 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 in the provided data, so no fixed firmware build can be cited; monitor the TOTOLINK support/download page (https://www.totolink.net/home/menu/detail/menu_listtpl/download/id/190/ids/36.html) for an updated firmware release for the T6 and apply it once available. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, identify all TOTOLINK T6 routers in your environment and confirm their firmware versions and network locations. …
Sign in for detailed remediation steps and compensating controls.
Threat intelligence, references, and detailed analysis are available after sign-in.
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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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