CVE-2026-44092: Missing input validation / stripping of CRLF characters in SystemConfigManager

Severity: critical (CVSS 9.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-07-30 · updated 2026-07-30
Weakness: CWE-93

Description

An unauthenticated remote attacker can inject malicious input into the ModbusServer application because it does not validate the input it fetches from MQTT. 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

How to fix

Upgrade to a fixed version: Phoenix Contact CHARX SEC-3000 1.9.1; Phoenix Contact CHARX SEC-3050 1.9.1; Phoenix Contact CHARX SEC-3100 1.9.1; Phoenix Contact CHARX SEC-3150 1.9.1. Check the vendor advisory for mitigations.

References

https://www.certvde.com/en/advisories/VDE-2026-008/

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