Author: Ameeba

Overview

CVE-2025-30420 is a serious vulnerability that affects users of the NI Circuit Design Suite, specifically version 14.3.0 and prior. This vulnerability is due to a memory corruption issue that could lead to an out of bounds read in the Bitmap::InternalDraw() function when interacting with the SymbolEditor of the suite. The exploitation of this vulnerability could result in unauthorized information disclosure or arbitrary code execution.
This vulnerability is significant as the NI Circuit Design Suite is widely used in the electronics industry for designing, testing, and troubleshooting electrical circuits. Successful exploitation could lead to a potential system compromise or data leakage, which could have severe consequences for the affected organization.

Vulnerability Summary

CVE ID: CVE-2025-30420
Severity: High (CVSS: 7.8)
Attack Vector: Local File
Privileges Required: None
User Interaction: Required
Impact: Potential system compromise or data leakage

Affected Products

Product | Affected Versions

NI Circuit Design Suite | 14.3.0 and prior versions

How the Exploit Works

The exploitation of this vulnerability requires a user to open a specially crafted .sym file. The memory corruption occurs due to an out of bounds read in the Bitmap::InternalDraw() function when using the SymbolEditor of the NI Circuit Design Suite. This corruption leads to the potential for information disclosure or arbitrary code execution.

Conceptual Example Code

Here’s a hypothetical example of how an attacker might use this vulnerability. Note that this is a conceptual illustration and not actual exploit code:

// Assumed .sym file structure
SymFile maliciousSymFile = new SymFile();
// Crafting the malicious bitmap data
Bitmap maliciousBitmapData = new Bitmap();
maliciousBitmapData.overflowData("arbitrary data to trigger out of bounds read");
// Embedding the malicious bitmap data into the .sym file
maliciousSymFile.embedBitmap(maliciousBitmapData);
// The .sym file is then saved and sent to the victim
maliciousSymFile.save("malicious.sym");

In this scenario, the attacker creates a .sym file with embedded malicious bitmap data designed to trigger an out of bounds read. The crafted file is then sent to the victim, who opens it with the SymbolEditor, triggering the exploit.

Mitigation

Users of the affected versions of NI Circuit Design Suite are advised to apply the vendor-supplied patch as soon as possible. As a temporary mitigation, Web Application Firewalls (WAFs) or Intrusion Detection Systems (IDS) can be used to detect and block attempts to exploit this vulnerability. However, this is only a stop-gap measure and does not remove the vulnerability from the system. For full remediation, the patch should be applied.

Overview

The cybersecurity community has recently identified a new vulnerability, termed CVE-2025-30419, that affects the NI Circuit Design Suite. This vulnerability is particularly concerning due to its memory corruption capabilities, which may result in information disclosure or arbitrary code execution. Specifically, the vulnerability is associated with an out of bounds read in GetSymbolBorderRectSize() when using the SymbolEditor. It affects versions 14.3.0 and prior of the NI Circuit Design Suite, a software widely used for the design of complex electronic circuits.
Given the extensive usage of this software suite in the electronics industry, this vulnerability carries significant potential for system compromise or data leakage. Successful exploitation requires user interaction, specifically the opening of a maliciously crafted .sym file.

Vulnerability Summary

CVE ID: CVE-2025-30419
Severity: High (CVSS 7.8)
Attack Vector: Local File Inclusion
Privileges Required: Low
User Interaction: Required
Impact: Potential system compromise or data leakage

Affected Products

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 due to an out of bounds read in the GetSymbolBorderRectSize() function when using the SymbolEditor in the NI Circuit Design Suite. An attacker crafts a .sym file containing malicious code, which when opened by a user, triggers the vulnerability. The memory corruption then allows for arbitrary code execution or information disclosure, leading to potential system compromise or data leakage.

Conceptual Example Code

For illustrative purposes, the below pseudocode demonstrates a general idea of how an attacker may craft a malicious .sym file that exploits the vulnerability:

create sym_file
function craft_malicious_code() {
// Code that triggers the memory corruption in GetSymbolBorderRectSize()
// and executes arbitrary malicious actions
}
write craft_malicious_code() to sym_file
save sym_file

The saved .sym file is then sent to the victim. Upon opening the file in the vulnerable application, the vulnerability is triggered, leading to potential system compromise or data leakage.
It is imperative for users to apply the vendor-supplied patch for this vulnerability or to use a Web Application Firewall (WAF) or Intrusion Detection System (IDS) as a temporary mitigation measure.

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

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.