CVE-2026-51761: n/a
Description
Incorrect access control in the updateLanIp function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to refresh the LAN address state via sending a crafted MQTT message to the cs_broker component.
CVSS v3.1
Score 5.3medium
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability arises from improper access control in the updateLanIp function of TOTOLINK T6 4.1.5cu.748_B20211015. An attacker without authentication can send a specially crafted MQTT message to the cs_broker component, which triggers a refresh of the LAN address state. The CVSS 3.1 base score is 5.3, reflecting a network attack vector with low complexity and no privileges or user interaction required. The impact is limited to integrity, with no confidentiality or availability impact reported.
Potential Impact
An unauthenticated attacker can manipulate the LAN address state of the affected device, potentially causing unauthorized changes to network configuration integrity. There is no direct impact on confidentiality or availability according to the CVSS vector. No known exploits are reported in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary mitigation has been documented at this time.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mitre
- Date Reserved
- 2026-06-08T00:00:00.000Z
- State
- PUBLISHED
Threat ID: 6a96dc3eacd9273b49caddb7
Added to database: 09/01/2026, 14:07:58 UTC
Last enriched: 09/07/2026, 14:45:15 UTC
Last updated: 10/17/2026, 18:48:20 UTC
Views: 56
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.