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CVE-2026-22535

FRAIL SECURITY IN MQTT PROTOCOL ALLOWS AN ATTACKER MODIFY CRITICAL PARAMETERS

HIGH
8.9
CVSS Score
Published: January 7, 2026 at 04:37 PM UTC
Updated: June 17, 2026 at 10:20 AM UTC
1 product affected across 1 vendorQC 60/90/120

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Severity
HIGH8.9
Exploit prediction
EPSS 0.1%
SSVC
No known exploit

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

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

Source: cverecord
https://cds.thalesgroup.com/en

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.9HIGHS21sec
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-1366

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