CVE-2019-6556 Use after free in CX-Programmer within CX-One
An attacker can execute arbitrary code by tricking a user into opening a specially crafted project file in Omron CX-Programmer.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2019-6556?
CVE-2019-6556 is a medium-severity use after free vulnerability in Omron CX-Programmer within CX-One, published on 10 Apr 2019. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
When processing project files, the application (Omron CX-Programmer v9.70 and prior and Common Components January 2019 and prior) fails to check if it is referencing freed memory. An attacker could use a specially crafted project file to exploit and execute code under the privileges of the application.
Weakness: CWE-416
Which versions are affected by CVE-2019-6556?
It affects 2 products.
Products include Omron Common Components, Omron Cx-Programmer.
How do I fix CVE-2019-6556?
No fix has been published for CVE-2019-6556 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2019-6556 being exploited?
There is no known exploitation of CVE-2019-6556 in the wild and no public exploit code.
Sources
Also known as GHSA-vv73-vf82-3769.