EUVD-2026-67875
GHSA-xp32-7pxg-3jjj
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Network-accessible unauthenticated endpoint; high confidentiality impact from DMZ config disclosure; no integrity or availability effect from this read-only function.
Primary rating from Vendor (mitre).
CVSS VectorVendor: mitre
Lifecycle Timeline
4DescriptionCVE.org
Incorrect access control in the getUrlFilterRules function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to obtain DMZ configuration information via sending a crafted POST request to /cgi-bin/cstecgi.cgi.
AnalysisAI
Unauthenticated DMZ configuration disclosure in TOTOLINK T6 firmware 4.1.5cu.748_B20211015 exposes internal network topology data to any attacker who can reach the router's web interface. The getUrlFilterRules handler at /cgi-bin/cstecgi.cgi fails to enforce access control before returning DMZ forwarding configuration - including internal host addresses and ports - in response to a crafted POST request. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | No authentication is required and no special non-default configuration is needed beyond a reachable TOTOLINK T6 management interface running firmware 4.1.5cu.748_B20211015. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | CVSS 3.1 rates this 7.5 (High) with a fully unauthenticated network vector (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N), which accurately reflects the ease of exploitation against a reachable device. … 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 specific patched firmware version has been confirmed from available data. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: Identify and inventory all TOTOLINK T6 devices running firmware 4.1.5cu.748_B20211015 in production. …
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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