CVE-2023-5407 Denial of service in C300
An attacker can cause a denial of service on Honeywell C300 controllers by sending a specially crafted message.
- 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-2023-5407?
CVE-2023-5407 is a medium-severity denial of service vulnerability in Honeywell C300, published on 17 Apr 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Controller denial of service due to improper handling of a specially crafted message received by the controller.
See Honeywell Security Notification for recommendations on upgrading and versioning.
Weakness: CWE-121
Which versions are affected by CVE-2023-5407?
How do I fix CVE-2023-5407?
No fix has been published for CVE-2023-5407 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2023-5407 being exploited?
There is no known exploitation of CVE-2023-5407 in the wild and no public exploit code.
Sources
Also known as GHSA-qppc-rv3c-f6g6.