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Critical · 9.8 CVE-2026-44090 EUVD-2026-51025GHSA-9h9r-3q9w-h7vj

Missing authentication for MQTT Broker

Published Jul 30, 2026 · Updated Jul 30, 2026 · Assigned by CERTVDE

Description

Due to missing authentication, an unauthenticated remote attacker may access the MQTT broker, which is only protected from external access by a firewall. This may lead to the device being fully compromised.

Affected products

VendorProductAffectedFixed
Phoenix Contact CHARX SEC-3150 1.0.0 – < 1.9.1 1.9.1
Phoenix Contact CHARX SEC-3100 1.0.0 – < 1.9.1 1.9.1
Phoenix Contact CHARX SEC-3050 1.0.0 – < 1.9.1 1.9.1
Phoenix Contact CHARX SEC-3000 1.0.0 – < 1.9.1 1.9.1

Advisories 1

References