CVE-2026-44091: Phoenix Contact Charx Sec-3000

Critical severity, CVSS 9.1. EPSS: 0.6% chance of exploitation in the next 30 days.

An unauthenticated remote attacker can post a malicious ID to the MQTT Broker results in the creation of a new configuration entry in the system configuration. This may lead to integrity and availability loss.

Affected products

• Phoenix Contact Charx Sec-3000: from 1.0.0, before 1.9.1 (fixed in 1.9.1)
• Phoenix Contact Charx Sec-3050: from 1.0.0, before 1.9.1 (fixed in 1.9.1)
• Phoenix Contact Charx Sec-3100: from 1.0.0, before 1.9.1 (fixed in 1.9.1)
• Phoenix Contact Charx Sec-3150: from 1.0.0, before 1.9.1 (fixed in 1.9.1)

Published 2026-07-30. Last modified 2026-07-31.