Overview
The vulnerability dubbed CVE-2025-30418 is a serious threat that affects users of the NI Circuit Design Suite, specifically version 14.3.0 and prior. This vulnerability is caused by an out-of-bounds write issue in the CheckPins() function within the SymbolEditor. If successfully exploited, this memory corruption vulnerability can lead to information disclosure or arbitrary code execution, potentially compromising user data or the entire system. Given the severity of the potential impact, it is critical for users and administrators of the affected software to understand the vulnerability and apply appropriate mitigation measures.
Vulnerability Summary
CVE ID: CVE-2025-30418
Severity: High (7.8 CVSS Score)
Attack Vector: .sym File
Privileges Required: None
User Interaction: Required
Impact: System compromise or data leakage
Affected Products
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Product | Affected Versions
NI Circuit Design Suite | 14.3.0 and prior versions
How the Exploit Works
The exploit works by tricking a user into opening a specially crafted .sym file. This malicious file triggers an out-of-bounds write in the CheckPins() function when using the SymbolEditor. This causes memory corruption which can lead to unwanted information disclosure or even arbitrary code execution. The attacker can then leverage this to compromise the user’s system or access confidential data.
Conceptual Example Code
While there’s no specific code that can illustrate this vulnerability due to its nature, the conceptual idea involves creating a malicious .sym file. This file would contain data intended to overflow a memory buffer when it’s opened in the SymbolEditor, triggering the vulnerability. The .sym file could look something like this in a very simple, conceptual form:
SYMBOL
{
NAME malicious_symbol
PINS
{
PIN[100000] // Out-of-bounds write vulnerability trigger
{
...
}
}
}Users are advised to avoid opening .sym files from untrusted sources and to apply the vendor patch as soon as it becomes available to mitigate this vulnerability. In the meantime, a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can serve as a temporary mitigation measure.