What’s Vulnerable › Vulnerabilities

CVE-2026-51769

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-01 · updated 2026-09-02
• Weakness: CWE-284

Description

Incorrect access control in the remoteCloudUpdateCheck function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to restart the cloud update check workflow via sending a crafted MQTT message to the cs_broker component.

References

• 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

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