SEPTEMBER 15, 2026
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Case File

CVE-2026-51750

CRITICAL · CVSS 9.8 EPSS 0.44% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-09-01 · Last synced 2026-09-15

CyberRota Analysis

AI-Generated

TOTOLINK T6 firmware version 4.1.5cu.748_B20211015 is vulnerable due to improper access control in the updatePriChannel function, allowing unauthenticated attackers to manipulate the primary mesh channel by sending specially crafted MQTT messages to the cs_broker component. This vulnerability could lead to unauthorized network access and potential disruption of mesh network functionality. Network administrators and users of the affected firmware should prioritize addressing this issue to safeguard their systems against 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-2026-51750
Severity
CRITICAL
CVSS
9.8
EPSS
0.44%

Original NVD Description

Incorrect access control in the updatePriChannel function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to rescan and switch the primary mesh channel via sending a crafted MQTT message to the cs_broker component.