SEPTEMBER 15, 2026
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Case File

CVE-2026-51676

CRITICAL · CVSS 9.1 EPSS 0.36% 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 improper access control in the setAccessDeviceCfg function, enabling unauthenticated attackers to modify access-device policies by sending a specially crafted POST request to /cgi-bin/cstecgi.cgi. This vulnerability could lead to unauthorized changes in network configurations, potentially compromising the integrity and security of the affected devices. Organizations using this router model should prioritize patching or mitigating this vulnerability to safeguard their network environments.

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-2026-51676
Severity
CRITICAL
CVSS
9.1
EPSS
0.36%

Original NVD Description

Incorrect access control in the setAccessDeviceCfg function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to alter access-device policies via sending a crafted POST request to /cgi-bin/cstecgi.cgi.