CVE-2024-8419 Improper Access Control vulnerability in AC4xxS devices
An unauthorized remote attacker can put ifm Smart PLC devices into a fail-safe state due to missing authentication on a network endpoint.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2024-8419?
CVE-2024-8419 is a high-severity missing authorization vulnerability in ifm Smart PLC AC402s, published on 30 Jun 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-306
Which versions are affected by CVE-2024-8419?
How do I fix CVE-2024-8419?
No fix has been published for CVE-2024-8419 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2024-8419 being exploited?
There is no known exploitation of CVE-2024-8419 in the wild and no public exploit code.
Sources
Also known as GHSA-24gf-3vg7-m9fh.