SEPTEMBER 17, 2026
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Case File

CVE-2026-51656

MEDIUM · CVSS 4.3 EPSS 0.20% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-08-28 · Last synced 2026-09-17

CyberRota Analysis

AI-Generated

TOTOLINK T6 devices running version 4.1.5cu.748_B20211015 are vulnerable due to improper access control in the getVpnPassCfg function, allowing unauthenticated attackers to retrieve sensitive VPN pass-through and WAN ping filter settings through a crafted POST request. This vulnerability could lead to unauthorized access to network configurations, potentially exposing the device to further attacks. Network administrators and security teams managing these devices 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.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-51656
Severity
MEDIUM
CVSS
4.3
EPSS
0.20%

Original NVD Description

Incorrect access control in the getVpnPassCfg function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to obtain VPN pass-through and WAN ping filter settings via sending a crafted POST request to /cgi-bin/cstecgi.cgi.