CVE-2022-22518: A bug in the CODESYS V3 CmpUserMgr component fails to correctly apply a security policy.

Severity: medium (CVSS 6.4 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2022-04-07 · updated 2026-06-17
Weakness: CWE-276

Description

A bug in CmpUserMgr component can lead to only partially applied security policies. This can result in enabled, anonymous access to components part of the applied security policy.

Affected products

CODESYS Control for BeagleBone SL: from 4.4.0.0 before 4.5.0.0 — fixed in 4.5.0.0
CODESYS Control For Beckhoff Cx9020: from 4.4.0.0 before 4.5.0.0 — fixed in 4.5.0.0
CODESYS Control For Empc-A/Imx6 Sl: from 4.4.0.0 before 4.5.0.0 — fixed in 4.5.0.0
CODESYS Control for IOT2000 SL: from 4.4.0.0 before 4.5.0.0 — fixed in 4.5.0.0
CODESYS Control for Linux SL: from 4.4.0.0 before 4.5.0.0 — fixed in 4.5.0.0
CODESYS Control for PFC100 SL: from 4.4.0.0 before 4.5.0.0 — fixed in 4.5.0.0
CODESYS Control for PFC200 SL: from 4.4.0.0 before 4.5.0.0 — fixed in 4.5.0.0
CODESYS Control for Raspberry Pi SL: from 4.4.0.0 before 4.5.0.0 — fixed in 4.5.0.0
CODESYS Control for WAGO Touch Panels 600 SL: from 4.4.0.0 before 4.5.0.0 — fixed in 4.5.0.0
CODESYS Control Runtime System Toolkit: from 3.5.17.0 before 3.5.18.0 — fixed in 3.5.18.0

How to fix

Upgrade to a fixed version: CODESYS Control for BeagleBone SL 4.5.0.0; CODESYS Control For Beckhoff Cx9020 4.5.0.0; CODESYS Control For Empc-A/Imx6 Sl 4.5.0.0; CODESYS Control for IOT2000 SL 4.5.0.0; CODESYS Control for Linux SL 4.5.0.0; CODESYS Control for PFC100 SL 4.5.0.0; CODESYS Control for PFC200 SL 4.5.0.0; CODESYS Control for Raspberry Pi SL 4.5.0.0; CODESYS Control for WAGO Touch Panels 600 SL 4.5.0.0; CODESYS Control Runtime System Toolkit 3.5.18.0. Check the vendor advisory for mitigations.

References

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