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.

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Fixes

Solution

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Workaround

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History

Wed, 02 Sep 2026 06:45:00 +0000

Type Values Removed Values Added
Title Unauthenticated access to VPN pass-through and WAN ping filter settings via POST /cgi-bin/cstecgi.cgi in TOTOLINK T6 firmware

Tue, 01 Sep 2026 22:00:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 28 Aug 2026 23:15:00 +0000

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

Fri, 28 Aug 2026 21:30:00 +0000

Type Values Removed Values Added
Title Unauthenticated access to VPN pass-through and WAN ping filter settings via POST /cgi-bin/cstecgi.cgi in TOTOLINK T6 firmware
Weaknesses CWE-284

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

Type Values Removed Values Added
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.
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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-09-01T16:53:25.503Z

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

Link: CVE-2026-51656

cve-icon Vulnrichment

Updated: 2026-09-01T16:53:20.581Z

cve-icon NVD

Status : Deferred

Published: 2026-08-28T20:18:09.090

Modified: 2026-09-01T17:17:29.510

Link: CVE-2026-51656

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-02T06:30:07Z

Weaknesses