EUVD-2026-67895
GHSA-232c-j76f-6rhp
Severity by source
AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Adjacent-only access required (LAN/Wi-Fi proximity), no authentication needed, read-only DHCP data leak with no integrity or availability impact.
Primary rating from Vendor (mitre).
CVSS VectorVendor: mitre
Lifecycle Timeline
4DescriptionCVE.org
Incorrect access control in the getStaticDhcpRules function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to obtain static DHCP reservation rules via sending a crafted POST request to /cgi-bin/cstecgi.cgi.
AnalysisAI
Incorrect access control in the TOTOLINK T6 router's getStaticDhcpRules CGI handler exposes static DHCP reservation rules to any unauthenticated attacker within adjacent network range, requiring only a crafted POST to /cgi-bin/cstecgi.cgi. Affected firmware is version 4.1.5cu.748_B20211015; the attack vector is limited to adjacent network (LAN or Wi-Fi), narrowing the realistic threat surface considerably. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The attacker must be on the adjacent network - either connected to the TOTOLINK T6's Wi-Fi (within radio range) or on the same wired LAN segment. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 score of 4.3 (Medium) is an accurate reflection of real-world risk. … 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 | Check the TOTOLINK T6 firmware download page (https://www.totolink.net/home/menu/detail/menu_listtpl/download/id/190/ids/36.html) for an updated firmware release; no specific patched version number is confirmed in the available references, so verify with TOTOLINK directly. … Detailed patch versions, workarounds, and compensating controls in full report. |
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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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