CVE-2022-3377 Memory corruption in Cscape

High 7.8 Published 27 Oct 2022 Updated 16 Apr 2025

An attacker can execute arbitrary code by tricking a user into opening a malicious FNT file in Horner Cscape due to an uninitialized pointer access.

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-2022-3377?

CVE-2022-3377 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 6 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 read.

Weakness: CWE-824

Which versions are affected by CVE-2022-3377?

It affects 1 product.

Products include Hornerautomation Cscape.

How do I fix CVE-2022-3377?

No fix has been published for CVE-2022-3377 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-2022-3377 being exploited?

There is no known exploitation of CVE-2022-3377 in the wild and no public exploit code.

Sources

Also known as GHSA-jgp5-g9cp-mgfw.