EUVD-2026-67877
GHSA-rgpq-5fw3-rxrm
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Unauthenticated network POST with no user interaction (AV:N/AC:L/PR:N/UI:N); read-only getter discloses config so C:H but I:N and A:N, unlike the input's I:H.
Primary rating from Vendor (mitre).
CVSS VectorVendor: mitre
Lifecycle Timeline
5DescriptionCVE.org
Incorrect access control in the getSyslogCfg function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to obtain syslog-related configuration via sending a crafted POST request to /cgi-bin/cstecgi.cgi.
AnalysisAI
Configuration disclosure in the TOTOLINK T6 router (firmware 4.1.5cu.748_B20211015) lets unauthenticated attackers read the device's syslog configuration by sending a crafted POST request to the getSyslogCfg handler of /cgi-bin/cstecgi.cgi. The affected CGI endpoint fails to enforce authentication (CWE-284), so any actor with network reachability to the web interface can retrieve logging settings. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires network reachability to the TOTOLINK T6 web management interface and the ability to send a crafted POST request to the getSyslogCfg function of /cgi-bin/cstecgi.cgi; no authentication, credentials, or user interaction are needed (PR:N/UI:N confirmed by CVSS). … 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) reflects trivial exploitability - network reachable, low complexity, no privileges or user interaction - which is accurate for the access-control bypass itself. … 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 the general TOTOLINK download portal rather than a specific fixed build, so monitor https://www.totolink.net/ for a firmware update superseding 4.1.5cu.748_B20211015 and apply it once released. … 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 which are running firmware 4.1.5cu.748_B20211015 or other affected versions. …
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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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