EUVD-2026-67901
GHSA-c9m2-cgr5-jhx5
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
PR:N confirmed by unauthenticated CGI access; C:L rather than C:H because MAC addresses are network identifiers, not sensitive credentials or personal data.
Primary rating from Vendor (mitre).
CVSS VectorVendor: mitre
Lifecycle Timeline
5DescriptionCVE.org
Incorrect access control in the getStationMacByIp function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to obtain a client MAC address via sending a crafted POST request to /cgi-bin/cstecgi.cgi.
AnalysisAI
Unauthenticated information disclosure in TOTOLINK T6 firmware 4.1.5cu.748_B20211015 exposes connected client MAC addresses to any remote attacker via the getStationMacByIp CGI function. The /cgi-bin/cstecgi.cgi endpoint processes crafted POST requests without enforcing any access control, returning MAC address data that can enable network reconnaissance and bypass of MAC-based access filtering. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | No special conditions are required beyond network reachability of the TOTOLINK T6 management interface. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | CVSS 7.5 with AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N reflects a fully remote, zero-prerequisite network exploit with no integrity or availability impact. … 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 has been identified at time of analysis. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, identify and inventory all TOTOLINK T6 routers in your environment and verify which are running firmware 4.1.5cu.748_B20211015. …
Sign in for detailed remediation steps and compensating controls.
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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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