SEPTEMBER 17, 2026
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Case File

CVE-2026-51666

MEDIUM · CVSS 4.3 EPSS 0.19% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-08-31 · Last synced 2026-09-17

CyberRota Analysis

AI-Generated

TOTOLINK T6 devices running firmware version 4.1.5cu.748_B20211015 are vulnerable due to improper access control in the setWizardCfg function, allowing unauthenticated attackers to modify critical settings such as WAN and Wi-Fi configurations through a crafted POST request. This vulnerability could lead to unauthorized network access and device manipulation. Network administrators and users of affected TOTOLINK devices should prioritize immediate updates or mitigations to safeguard their systems.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links
github.com ↗ github.com ↗

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-51666
Severity
MEDIUM
CVSS
4.3
EPSS
0.19%

Original NVD Description

Incorrect access control in the setWizardCfg function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to reconfigure WAN, Wi-Fi, and device initialization state via sending a crafted POST request to /cgi-bin/cstecgi.cgi.