SEPTEMBER 18, 2026
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Case File

CVE-2026-51621

HIGH · CVSS 7.5 EPSS 0.36% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-08-28 · 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 getInitCfg function, enabling unauthenticated attackers to retrieve sensitive device configuration information through a specially crafted POST request to /cgi-bin/cstecgi.cgi. Organizations using this firmware should prioritize remediation to prevent potential data exposure and unauthorized access to device settings. Immediate action is recommended for users managing network devices in environments where security is critical.

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-2026-51621
Severity
HIGH
CVSS
7.5
EPSS
0.36%

Original NVD Description

Incorrect access control in the getInitCfg function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to obtain sensitive device configuration information via sending a crafted POST request to /cgi-bin/cstecgi.cgi.