SEPTEMBER 15, 2026
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Case File

CVE-2026-51743

CRITICAL · CVSS 9.1 EPSS 0.36% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-09-01 · 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 guest_wifi_sync function, enabling unauthenticated attackers to disable guest virtual AP interfaces by sending specially crafted MQTT messages to the cs_broker component. This vulnerability could lead to unauthorized access and disruption of guest network services. Organizations using this router model should prioritize remediation to protect their guest network from potential exploitation.

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-2026-51743
Severity
CRITICAL
CVSS
9.1
EPSS
0.36%

Original NVD Description

Incorrect access control in the guest_wifi_sync function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to disable guest virtual AP interfaces via sending a crafted MQTT message to the cs_broker component.