SEPTEMBER 15, 2026
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Case File

CVE-2026-51764

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 recvSlaveCloudCheckStatus function, enabling unauthenticated attackers to overwrite cloud-result tracking files by sending specially crafted MQTT messages to the cs_broker component. This vulnerability poses a significant risk as it could lead to unauthorized data manipulation and potential service disruption. Organizations using this device should prioritize addressing this issue to safeguard their cloud services and data integrity.

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-2026-51764
Severity
CRITICAL
CVSS
9.8
EPSS
0.44%

Original NVD Description

Incorrect access control in the recvSlaveCloudCheckStatus function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to overwrite cloud-result tracking files via sending a crafted MQTT message to the cs_broker component.