CVE-2022-3378 Memory corruption in Cscape

High 7.8 Published 27 Oct 2022 Updated 16 Apr 2025

Attackers can execute arbitrary code by tricking users into opening malicious FNT files in Horner Cscape, requiring vendor patches.

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-2022-3378?

CVE-2022-3378 is a high-severity memory corruption vulnerability in Horner Automation Cscape, published on 27 Oct 2022. 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

Horner Automation's Cscape version 9.90 SP 7 and prior does not properly validate user-supplied data. If a user opens a maliciously formed FNT file, then an attacker could execute arbitrary code within the current process by accessing an uninitialized pointer, leading to an out-of-bounds memory write.

Weakness: CWE-824

Which versions are affected by CVE-2022-3378?

It affects 1 product.

Products include Hornerautomation Cscape.

How do I fix CVE-2022-3378?

No fix has been published for CVE-2022-3378 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-2022-3378 being exploited?

There is no known exploitation of CVE-2022-3378 in the wild and no public exploit code.

Sources

Also known as GHSA-7fxv-pr9h-f54r.