SEPTEMBER 15, 2026
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Case File

CVE-2026-51681

CRITICAL · CVSS 9.1 EPSS 0.29% Public Exploit

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

CyberRota Analysis

AI-Generated

TOTOLINK T6 version 4.1.5cu.748_B20211015 is vulnerable due to incorrect access control in the setRemoteCfg function, allowing unauthenticated attackers to gain unauthorized access to WAN-side administration by sending a specially crafted POST request to /cgi-bin/cstecgi.cgi. This vulnerability could lead to significant security risks, including unauthorized configuration changes and potential system compromise. Organizations using this router model should prioritize patching or mitigating this vulnerability to safeguard their network infrastructure.

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-2026-51681
Severity
CRITICAL
CVSS
9.1
EPSS
0.29%

Original NVD Description

Incorrect access control in the setRemoteCfg function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to expose WAN-side administration via sending a crafted POST request to /cgi-bin/cstecgi.cgi.