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CHARX SEC-3100 (< 1.9.1)

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critical advisory

Unauthenticated Remote Access to Phoenix Contact CHARX SEC MQTT Broker

A critical vulnerability (CVE-2026-44090) in Phoenix Contact CHARX SEC controllers allows unauthenticated remote attackers to gain full device control by bypassing authentication on the MQTT broker.

CHARX SEC-3150 +7 industrial-control-systems mqtt cve-2026-44091 ics cve injection authentication-bypass cve-2026-44100 +14
2r 5t 12c