CVE-2023-3273 Missing authorization in ICR890-4

High 7.5 Published 10 Jul 2023 Updated 1 Jun 2026

Unauthenticated attackers can modify device settings like IP addresses, causing denial of service on SICK ICR890-4 industrial routers.

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-2023-3273?

CVE-2023-3273 is a high-severity missing authorization vulnerability in SICK AG ICR890-4, published on 10 Jul 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Improper Access Control in the SICK ICR890-4 could allow an unauthenticated remote attacker to affect the availability of the device by changing settings of the device such as the IP address based on missing access control.

Weakness: CWE-284

Which versions are affected by CVE-2023-3273?

It affects 1 product.

Products include Sick Icr890-4 Firmware.

How do I fix CVE-2023-3273?

No fix has been published for CVE-2023-3273 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-2023-3273 being exploited?

There is no known exploitation of CVE-2023-3273 in the wild and no public exploit code.

Sources

Also known as GHSA-29xr-xpp4-5783.