SEPTEMBER 18, 2026
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Case File

CVE-2026-51668

HIGH · CVSS 7.5 EPSS 0.33% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-08-31 · Last synced 2026-09-18

CyberRota Analysis

AI-Generated

The TOTOLINK T6 firmware version 4.1.5cu.748_B20211015 is vulnerable due to improper access control in the setLanguageCfg function, allowing unauthenticated attackers to alter language settings by sending a specially crafted POST request to the CGI endpoint. This vulnerability could lead to unauthorized configuration changes, potentially impacting the device's functionality and user experience. Organizations using this firmware should prioritize remediation to prevent exploitation and maintain security integrity.

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-2026-51668
Severity
HIGH
CVSS
7.5
EPSS
0.33%

Original NVD Description

Incorrect access control in the setLanguageCfg function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to modify language configuration via sending a crafted POST request to /cgi-bin/cstecgi.cgi.