CVE-2023-35004 Integer overflow in GTKWave

High 7.8 Published 8 Jan 2024 Updated 4 Nov 2025

An attacker can achieve arbitrary code execution by tricking a user into opening a specially crafted VZT file in GTKWave.

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: Available

What is CVE-2023-35004?

CVE-2023-35004 is a high-severity vulnerability in Tonybybell Gtkwave, published on 8 Jan 2024. 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

An integer overflow vulnerability exists in the VZT longest_len value allocation functionality of GTKWave 3.3.115. A specially crafted .vzt file can lead to arbitrary code execution. A victim would need to open a malicious file to trigger this vulnerability.

Weakness: CWE-190

Which versions are affected by CVE-2023-35004?

It affects 1 product.

Products include Tonybybell Gtkwave.

How do I fix CVE-2023-35004?

Upgrade to a fixed version.

Is CVE-2023-35004 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-35004 exists.

All Tonybybell Gtkwave vulnerabilities

Sources

Also known as DEBIAN-CVE-2023-35004, GHSA-4rj9-gmxf-4rcf, UBUNTU-CVE-2023-35004.