CVE-2023-5400 Memory corruption in Experion Server

High 8.1 Published Updated

A heap overflow in Honeywell Experion Server allows remote attackers to execute code or cause a denial of service via malformed messages.

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-2023-5400?

CVE-2023-5400 is a high-severity memory corruption vulnerability in Honeywell Experion Server, published on 17 Apr 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Server receiving a malformed message based on a using the specified key values can cause a heap overflow vulnerability which could lead to an attacker performing remote code execution or causing a failure.  See Honeywell Security Notification for recommendations on upgrading and versioning.

Weakness: CWE-122

Which versions are affected by CVE-2023-5400?

How do I fix CVE-2023-5400?

No fix has been published for CVE-2023-5400 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2023-5400 being exploited?

There is no known exploitation of CVE-2023-5400 in the wild and no public exploit code.

Sources

Also known as GHSA-5ghg-c6h3-83xg.

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