ICSA-21-278-04: Honeywell c200 firmware vulnerability
Affected Software
3 affected components
Honeywell C200
Honeywell C200E
Honeywell C300 and ACE controllers
Event History
Mar 25, 2025
Advisory Published
07:51 AM
Frequently Asked Questions
1
What is the severity of ICSA-21-278-04?
The severity of ICSA-21-278-04 is classified as high, indicating a significant security risk.
2
What vulnerabilities are associated with ICSA-21-278-04?
ICSA-21-278-04 involves multiple vulnerabilities in Honeywell C200, C200E, C300, and ACE controllers that could allow for unauthorized access.
3
How do I fix ICSA-21-278-04?
To fix ICSA-21-278-04, apply the relevant security updates provided by Honeywell for affected controllers.
4
What systems are affected by ICSA-21-278-04?
ICSA-21-278-04 affects Honeywell C200, C200E, C300, and ACE controllers.
5
Are there any mitigations for ICSA-21-278-04?
Yes, implementing network segmentation and access controls can mitigate the risks associated with ICSA-21-278-04.