SEPTEMBER 17, 2026
Live Feed
Back to database
Case File

CVE-2026-51739

MEDIUM · CVSS 5.9 EPSS 0.34% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-08-31 · Last synced 2026-09-17

CyberRota Analysis

AI-Generated

TOTOLINK T6 version 4.1.5cu.748_B20211015 is vulnerable due to incorrect access control in the CloudSrvVersionCheck function, enabling unauthenticated attackers to initiate cloud update checks by sending a specially crafted POST request to /cgi-bin/cstecgi.cgi. This flaw could potentially allow attackers to exploit the device for unauthorized updates or information retrieval. Organizations using this model 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-2026-51739
Severity
MEDIUM
CVSS
5.9
EPSS
0.34%

Original NVD Description

Incorrect access control in the CloudSrvVersionCheck function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to trigger cloud update checks via sending a crafted POST request to /cgi-bin/cstecgi.cgi.