SEPTEMBER 15, 2026
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Case File

CVE-2026-51717

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 devices running firmware version 4.1.5cu.748_B20211015 are vulnerable due to improper access control in the setOpModeCfg function, allowing unauthenticated attackers to modify the device's operating mode through a specially crafted POST request to /cgi-bin/cstecgi.cgi. This vulnerability could lead to unauthorized changes in device configuration, potentially compromising network security. Users of affected TOTOLINK devices should prioritize patching or mitigating this issue 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-2026-51717
Severity
CRITICAL
CVSS
9.1
EPSS
0.29%

Original NVD Description

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