Paper/Archive/CVE-2026-51770

CVE-2026-51770

mitre — Incorrect access control in the sendToMasterQosConfig function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to f…

EPSS 0.6%CVSS 9.8

critical.is priorityof 100

CVSS 9.8 (ADP)9.8 / 10 × 3029.4 Not in CISA KEV+300.0 EPSS percentile 50.7.507 × 2010.1 No public exploit+100.0 SSVC exploitation: none+100.0

Description · from the CVE record

Incorrect access control in the sendToMasterQosConfig function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to forward attacker-controlled QoS settings to the master via sending a crafted MQTT message to the cs_broker component..

Affected

ProductAffectedFixed inSource

n/an/a–CNA

Scores by source

CISA ADP9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

reftotolink.net/home/menu/detail/menu_listtpl/download/id/190/ids/36.html reftotolink.net refgithub.com/DarkBoulder/CVE-Vendor-Coordination/blob/main/TOTOLINK/README.md refgithub.com/ShengWu00/CVE-Vendor-Coordination/blob/main/TOTOLINK/README.md