CVE-2026-51611 in TOTOLINK

Summary

by MITRE • 08/28/2026

Incorrect access control in the startSlaveReboot function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to arbitrarily force a reboot via sending a crafted MQTT message.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

• Responsible: MITRE
• Reservation: 06/08/2026
• Disclosure: 08/28/2026
• Moderation: accepted
• Entry: VDB-396782
• CPE: ready
• CWE: CWE-284 (confirmed)
• CVSS: 7.5 (VulDB)
• EPSS: 0.00000
• KEV: no
• Activities: very low

Sources

• MITRE: https://www.cve.org/CVERecord?id=CVE-2026-51611
• NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-51611
• CVE Details: https://www.cvedetails.com/cve/CVE-2026-51611/