SEPTEMBER 15, 2026
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Case File

CVE-2026-51709

CRITICAL · CVSS 9.8 EPSS 0.44% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-08-31 · Last synced 2026-09-15

CyberRota Analysis

AI-Generated

The TOTOLINK T6 firmware version 4.1.5cu.748_B20211015 contains an incorrect access control vulnerability in the setWiFiBasicCfg function, enabling unauthenticated attackers to modify primary Wi-Fi settings by sending a specially crafted POST request to the CGI endpoint. This flaw poses a significant risk as it allows unauthorized changes to network configurations, potentially leading to unauthorized access or network disruption. Organizations using this firmware should prioritize remediation to safeguard their network 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-2026-51709
Severity
CRITICAL
CVSS
9.8
EPSS
0.44%

Original NVD Description

Incorrect access control in the setWiFiBasicCfg function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to reconfigure primary Wi-Fi settings via sending a crafted POST request to /cgi-bin/cstecgi.cgi.