CVE-2026-51761

Impact

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.

Affected packages

This record carries no package version data, so it cannot be matched against a dependency list automatically. Read the advisory and compare your version by hand.

Weakness classification

References

• NVD record
• CVE.org record
• https://github.com/DarkBoulder/CVE-Vendor-Coordination/blob/main/TOTOLINK/README.md
• https://github.com/ShengWu00/CVE-Vendor-Coordination/blob/main/TOTOLINK/README.md
• https://www.totolink.net/
• https://www.totolink.net/home/menu/detail/menu_listtpl/download/id/190/ids/36.html
• https://github.com/DarkBoulder/CVE-Vendor-Coordination/blob/main/TOTOLINK/README.md