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N A CVE-2026-51684

| EUVDEUVD-2026-68580 CRITICAL
Improper Access Control (CWE-284)
2026-08-31 mitre GHSA-h46m-375q-8mq9
9.8
CVSS 3.1 · Vendor: mitre
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Severity by source

Vendor (mitre) PRIMARY
9.8 CRITICAL
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from Vendor (mitre) · only source for this CVE.

CVSS VectorVendor: mitre

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

4
Analysis Generated
Sep 02, 2026 - 16:25 vuln.today
CVSS changed
Sep 02, 2026 - 16:22 NVD
9.8 (CRITICAL)
CVE Published
Aug 31, 2026 - 00:00 cve.org
CRITICAL 9.8
CVE Published
Aug 31, 2026 - 00:00 cve.org
UNKNOWN (no severity yet)

DescriptionCVE.org

Incorrect access control in the setStorageCfg function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to alter the storage-related service state via sending a crafted POST request to /cgi-bin/cstecgi.cgi.

AnalysisAI

Analysis complete. Summary of the key judgments in this synthesis: - Product: TOTOLINK T6 router (firmware 4.1.5cu.748_B20211015), unauth setStorageCfg access-control flaw (CWE-284) via /cgi-bin/cstecgi.cgi. …

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Recommended ActionAI

Within 24 hours, identify all TOTOLINK T6 routers in your environment and document firmware versions; prioritize devices running 4.1.5cu.748_B20211015 or earlier for immediate network isolation. …

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CVE-2026-51684 vulnerability details – vuln.today

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