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CVE-2025-6034: Memory Corruption Vulnerability in NI Circuit Design Suite

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Overview

A severe cybersecurity vulnerability has been identified in the NI Circuit Design Suite. The vulnerability, known as CVE-2025-6034, affects the SymbolEditor component due to an out-of-bounds read in the DefaultFontOptions() function. This vulnerability has significant implications for users of the software as it may lead to unauthorized information disclosure or even enable an attacker to execute arbitrary code on the victim’s system.

Vulnerability Summary

CVE ID: CVE-2025-6034
Severity: High (7.8 CVSS Score)
Attack Vector: Local file
Privileges Required: None
User Interaction: Required
Impact: Potential system compromise or data leakage

Affected Products

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Product | Affected Versions

NI Circuit Design Suite | 14.3.1 and prior versions

How the Exploit Works

The vulnerability is exploited when a user opens a specially crafted .sym file in the SymbolEditor component of the NI Circuit Design Suite. Upon opening of the malicious file, an out-of-bounds read occurs in the DefaultFontOptions() function, leading to memory corruption. This corruption potentially allows the attacker to disclose sensitive information or execute arbitrary code on the user’s system.

Conceptual Example Code

Below is a conceptual representation of how the vulnerability might be exploited. This pseudocode demonstrates the loading of a malicious .sym file leading to an out-of-bounds read.

load_sym_file('malicious.sym') {
read_file('malicious.sym');
corrupt_memory(DefaultFontOptions());
execute_arbitrary_code();
}

Mitigation Guidance

Users are advised to apply the vendor-supplied patch as soon as possible to fix this vulnerability. In the interim, using Web Application Firewalls (WAF) or Intrusion Detection Systems (IDS) can provide temporary mitigation. Always be cautious when opening .sym files, especially those received from unknown sources.

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Disclaimer:

The information and code presented in this article are provided for educational and defensive cybersecurity purposes only. Any conceptual or pseudocode examples are simplified representations intended to raise awareness and promote secure development and system configuration practices.

Do not use this information to attempt unauthorized access or exploit vulnerabilities on systems that you do not own or have explicit permission to test.

Ameeba and its authors do not endorse or condone malicious behavior and are not responsible for misuse of the content. Always follow ethical hacking guidelines, responsible disclosure practices, and local laws.

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