CVE-2024-8419

Improper Access Control vulnerability in AC4xxS devices

State: Published
Severity: 7.5 High
Published: Jun 30, 2025
Updated: Feb 16, 2026
Reserved: Sep 4, 2024

Description

The endpoint hosts a script that allows an unauthorized remote attacker to put the system in a fail-safe state over the network due to missing authentication.

Scores

CVSS	Score	Vector	Source
3.1	7.5 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	CERTVDE

Weaknesses

CWE-306 Missing Authentication for Critical Function

Affected Products

Product	Versions
ifm Smart PLC AC402sifm electronic GmbH	4.04 to before 4.3.17Affected 6.1.8Affected
ifm Smart PLC AC422sifm electronic GmbH	4.04 to before 4.3.17Affected 6.1.8Affected
ifm Smart PLC AC424sifm electronic GmbH	4.04 to before 4.3.17Affected 6.1.8Affected
ifm Smart PLC AC432sifm electronic GmbH	4.04 to before 4.3.17Affected 6.1.8Affected
ifm Smart PLC AC434sifm electronic GmbH	4.04 to before 4.3.17Affected 6.1.8Affected

References

https://cert.vde.com/en/advisories/VDE-2024-061

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