CVE-2026-22535

HIGH

FRAIL SECURITY IN MQTT PROTOCOL ALLOWS AN ATTACKER MODIFY CRITICAL PARAMETERS

Title source: CVE List
STIX 2.1 vulnerability

Record summary

CVE-2026-22535 has a selected CVSS score of 8.9 (high).

Description

An attacker with the ability to interact through the network and with access credentials, could, thanks to the unsecured (unencrypted) MQTT communications protocol, write on the server topics of the board that controls the MQTT communications

Description source: CVE List

Exploitation context

CISA SSVC decision

ExploitationNone
AutomatableNo
Technical impactTotal

CISA Coordinator · SSVC 2.0.3 · Evaluated Jan 7, 2026 · Source: CVE List

Affected products and versions

1
ProductSourceVersion range

QC 60/90/120

Browse EFACEC / QC 60/90/120

Default status: unaffected

CVE List8affected

References

2