CVE-2025-6034 Out of Bounds Read in DefaultFontOptions() in NI Circuit Design Suite

High 8.5 Published 30 Sep 2025 Updated 26 Feb 2026

An out-of-bounds read in NI Circuit Design Suite allows attackers to execute arbitrary code or disclose information via a crafted .sym file.

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-2025-6034?

CVE-2025-6034 is a high-severity memory corruption vulnerability in NI Circuit Design Suite, published on 30 Sep 2025. 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

There is a memory corruption vulnerability due to an out of bounds read in DefaultFontOptions() when using SymbolEditor in NI Circuit Design Suite. This vulnerability may result in information disclosure or arbitrary code execution. Successful exploitation requires an attacker to get a user to open a specially crafted .sym file. This vulnerability affects NI Circuit Design Suite 14.3.1 and prior versions.

Weakness: CWE-125

Which versions are affected by CVE-2025-6034?

It affects 1 product.

Products include Ni Circuit Design Suite.

How do I fix CVE-2025-6034?

No fix has been published for CVE-2025-6034 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-2025-6034 being exploited?

There is no known exploitation of CVE-2025-6034 in the wild and no public exploit code.

Sources

Also known as GHSA-5xq5-7xh5-4jv6.