SEPTEMBER 15, 2026
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Case File

CVE-2026-51769

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 version 4.1.5cu.748_B20211015 is vulnerable due to improper access control in the remoteCloudUpdateCheck function, enabling unauthenticated attackers to trigger the cloud update check process by sending a specially crafted MQTT message to the cs_broker component. This vulnerability could potentially lead to unauthorized system restarts or disruptions in cloud update operations. Organizations using this device should prioritize remediation to mitigate the risk of 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-2026-51769
Severity
CRITICAL
CVSS
9.8
EPSS
0.44%

Original NVD Description

Incorrect access control in the remoteCloudUpdateCheck function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to restart the cloud update check workflow via sending a crafted MQTT message to the cs_broker component.