ICSA-21-278-04 - Honeywell c200 firmware vulnerability

Affected Software

3 affected components

Honeywell C200

Honeywell C200E

Honeywell C300 and ACE controllers

Mar 25, 2025

Advisory Published

07:51 AM

1

The severity of ICSA-21-278-04 is classified as high, indicating a significant security risk.

2

ICSA-21-278-04 involves multiple vulnerabilities in Honeywell C200, C200E, C300, and ACE controllers that could allow for unauthorized access.

3

To fix ICSA-21-278-04, apply the relevant security updates provided by Honeywell for affected controllers.

4

ICSA-21-278-04 affects Honeywell C200, C200E, C300, and ACE controllers.

5

Yes, implementing network segmentation and access controls can mitigate the risks associated with ICSA-21-278-04.