CVE-2023-27916 Memory corruption in Cscape

High 7.8 Published 6 Jun 2023 Updated 7 Jan 2025

An out-of-bounds read in Horner Automation Cscape allows arbitrary code execution via malicious font files, impacting industrial control systems.

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-2023-27916?

CVE-2023-27916 is a high-severity memory corruption vulnerability in Horner Automation Cscape, published on 6 Jun 2023. 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

The affected application lacks proper validation of user-supplied data when parsing font files (e.g., FNT). This could lead to an out-of-bounds read. An attacker could leverage this vulnerability to potentially execute arbitrary code in the context of the current process.

Weakness: CWE-125

Which versions are affected by CVE-2023-27916?

It affects 2 products.

Products include Hornerautomation Cscape, Hornerautomation Cscape Envisionrv.

How do I fix CVE-2023-27916?

No fix has been published for CVE-2023-27916 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-2023-27916 being exploited?

There is no known exploitation of CVE-2023-27916 in the wild and no public exploit code.

Sources

Also known as GHSA-9qhf-jjcc-w776.