SEPTEMBER 18, 2026
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Case File

CVE-2026-51768

HIGH · CVSS 7.5 EPSS 0.33% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-09-01 · Last synced 2026-09-18

CyberRota Analysis

AI-Generated

TOTOLINK T6 firmware version 4.1.5cu.748_B20211015 is vulnerable due to incorrect access control in the setElinkQosConfig function, allowing unauthenticated attackers to alter the Quality of Service (QoS) policy on the master device. This could lead to unauthorized network traffic manipulation, potentially impacting network performance and security. Organizations using this firmware should prioritize patching 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-2026-51768
Severity
HIGH
CVSS
7.5
EPSS
0.33%

Original NVD Description

Incorrect access control in the setElinkQosConfig function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to modify privileged QoS policy on the master device via sending a crafted MQTT message to the cs_broker component.