SEPTEMBER 15, 2026
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Case File

CVE-2026-51728

CRITICAL · CVSS 9.8 EPSS 0.35% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-08-31 · Last synced 2026-09-15

CyberRota Analysis

AI-Generated

TOTOLINK T6 version 4.1.5cu.748_B20211015 is vulnerable due to incorrect access control in the UploadFirmwareFile function, enabling unauthenticated attackers to upload malicious firmware images through a crafted POST request to /cgi-bin/cstecgi.cgi. This could lead to unauthorized modifications of the device's firmware, potentially compromising its integrity and security. Organizations using this device should prioritize patching or mitigating this vulnerability to prevent 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-2026-51728
Severity
CRITICAL
CVSS
9.8
EPSS
0.35%

Original NVD Description

Incorrect access control in the UploadFirmwareFile function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to upload a crafted firmware image via sending a crafted POST request to /cgi-bin/cstecgi.cgi.