SEPTEMBER 15, 2026
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Case File

CVE-2026-51733

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 FirmwareUpgrade function in TOTOLINK T6 version 4.1.5cu.748_B20211015 is vulnerable due to improper access control, enabling unauthenticated attackers to manipulate Wi-Fi schedule entries by sending a specially crafted POST request to the device's CGI interface. This flaw could lead to unauthorized changes in network configurations, potentially disrupting service for users. Network administrators and security teams managing affected TOTOLINK devices should prioritize addressing this vulnerability to mitigate risks of unauthorized access and service disruption.

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-2026-51733
Severity
CRITICAL
CVSS
9.8
EPSS
0.44%

Original NVD Description

Incorrect access control in the FirmwareUpgrade function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to remove Wi-Fi schedule entries via sending a crafted POST request to /cgi-bin/cstecgi.cgi.