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.
