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CVE-2025-30417: Memory Corruption Vulnerability in NI Circuit Design Suite

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Overview

The Common Vulnerabilities and Exposures (CVE) system has recently identified a significant cybersecurity flaw labeled as CVE-2025-30417. This flaw, discovered in the National Instruments (NI) Circuit Design Suite, specifically affects the Library!DecodeBase64() function within the SymbolEditor. The vulnerability is concerning due to its potential to lead to memory corruption, which may ultimately result in unauthorized information disclosure or arbitrary code execution. Users of the NI Circuit Design Suite 14.3.0 and prior versions need to pay special attention to this vulnerability. The impact of this flaw is severe and could lead to system compromise or data leakage if not properly addressed.

Vulnerability Summary

CVE ID: CVE-2025-30417
Severity: High (7.8 CVSS score)
Attack Vector: Opening a specially crafted .sym 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 | 14.3.0 and prior versions

How the Exploit Works

The exploit takes advantage of a memory corruption vulnerability in the Library!DecodeBase64() function when using the SymbolEditor in NI Circuit Design Suite. The flaw occurs due to an out of bounds write operation. The attacker crafts a malicious .sym file, which, when opened by a user, triggers the vulnerability and executes the malicious code, potentially leading to information disclosure or arbitrary code execution.

Conceptual Example Code

Below is a conceptual example of how the vulnerability might be exploited using a crafted .sym file. Note that this is a simplified representation and actual malicious files may be more complex.

# Malicious .sym file content
malicious_payload = """
BASE64_ENCODED_PAYLOAD {
exploit: "OUT_OF_BOUNDS_WRITE",
target_function: "Library!DecodeBase64()"
payload: "ARBITRARY_CODE"
}
"""
# Save the malicious payload in a .sym file
with open("exploit.sym", "w") as file:
file.write(malicious_payload)

The ‘exploit.sym’ file is then sent to the target, who unknowingly opens it with the vulnerable application, thereby triggering the exploit.

Mitigation Guidance

Users are recommended to apply the vendor patch as soon as it becomes available in order to mitigate this vulnerability. As a temporary solution, users can employ Web Application Firewalls (WAF) or Intrusion Detection Systems (IDS) to block or alert on any suspicious activities. Furthermore, users should exercise caution when opening .sym files from untrusted sources to avoid falling victim to potential attacks.

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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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