Description
Incorrect access control in the getSysStatusCfg function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to obtain sensitive information such as operation mode, firmware version, serial number, WAN/LAN IP addresses, WiFi SSID, encryption keys, and connected client statistics via sending a crafted POST request to /cgi-bin/cstecgi.cgi.
Published: 2026-08-28
Score: n/a
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Impact

The vulnerability is an incorrect access control in the getSysStatusCfg function of TOTOLINK T6 firmware version 4.1.5cu.748_B20211015. An unauthenticated attacker can obtain sensitive device information such as operation mode, firmware version, serial number, WAN/LAN IP addresses, WiFi SSID, encryption keys, and connected client statistics by sending a crafted POST request to /cgi-bin/cstecgi.cgi.

Affected Systems

TOTOLINK T6 series devices running firmware 4.1.5cu.748_B20211015 are affected.

Risk and Exploitability

The vulnerability can be exploited without authentication by sending a POST request to /cgi-bin/cstecgi.cgi. EPSS score is not available and the vulnerability is not listed in the CISA KEV catalog. An unauthenticated attacker can read sensitive configuration data; no credentials or special privileges beyond network access to the device are required.

Generated by OpenCVE AI on August 28, 2026 at 21:27 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Update the device firmware to a version that removes the vulnerable getSysStatusCfg function or strengthens access control for the /cgi-bin/cstecgi.cgi endpoint.
  • Configure the device’s network settings or a perimeter firewall so that the HTTP management interface is only reachable from trusted internal networks or disable it entirely if not needed.
  • Block or filter traffic to the /cgi-bin/cstecgi.cgi CGI endpoint using a firewall or router ACL to prevent unauthorized requests from reaching the device.

Generated by OpenCVE AI on August 28, 2026 at 21:27 UTC.

Tracking

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Advisories

No advisories yet.

History

Fri, 28 Aug 2026 21:45:00 +0000

Type Values Removed Values Added
Title Unauthorized Access to Sensitive Device Configuration via getSysStatusCfg in TOTOLINK T6
Weaknesses CWE-200
CWE-284

Fri, 28 Aug 2026 21:15:00 +0000

Type Values Removed Values Added
First Time appeared Totolink
Totolink t6
Vendors & Products Totolink
Totolink t6

Fri, 28 Aug 2026 19:45:00 +0000

Type Values Removed Values Added
Description Incorrect access control in the getSysStatusCfg function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to obtain sensitive information such as operation mode, firmware version, serial number, WAN/LAN IP addresses, WiFi SSID, encryption keys, and connected client statistics via sending a crafted POST request to /cgi-bin/cstecgi.cgi.
References

Subscriptions

Totolink T6
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-08-28T15:43:24.912Z

Reserved: 2026-06-08T00:00:00.000Z

Link: CVE-2026-51617

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2026-08-28T20:18:04.860

Modified: 2026-08-28T21:20:39.190

Link: CVE-2026-51617

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-28T21:30:05Z

Weaknesses
  • CWE-200

    Exposure of Sensitive Information to an Unauthorized Actor

  • CWE-284

    Improper Access Control