Missing Authentication for Critical Function in Phoenix Contact GmbH products - CVE-2026-44090
Published: July 31, 2026
Vulnerability identifier: #VU140624
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-44090
CWE-ID: CWE-306
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to bypass authentication process.
The vulnerability exists due to missing authentication for critical function within the CharxModbusServer. A remote attacker can bypass authentication process and gain unauthorized access to the application.
Affected software
CHARX SEC-3000
CHARX SEC-3050
CHARX SEC-3100
CHARX SEC-3150
CHARX SEC-3050
CHARX SEC-3100
CHARX SEC-3150
How to mitigate CVE-2026-44090
Install updates from vendor's website.
CHARX SEC-3000 - update to 1.9.1
CHARX SEC-3050 - update to 1.9.1
CHARX SEC-3100 - update to 1.9.1
CHARX SEC-3150 - update to 1.9.1
CHARX SEC-3050 - update to 1.9.1
CHARX SEC-3100 - update to 1.9.1
CHARX SEC-3150 - update to 1.9.1