CVE-2024-39883 Delta Electronics CVE debrief

Who should care

Organizations using Delta Electronics CNCSoft-G2 for CNC machine control and programming, particularly in manufacturing and industrial environments. System administrators responsible for industrial control system security and patch management should prioritize this update.

Technical summary

CVE-2024-39883 is a heap-based buffer overflow in Delta Electronics CNCSoft-G2 v2.0.0.5. The application fails to validate the length of user-supplied data before copying it to a fixed-length heap-based buffer. This vulnerability can be triggered when a user visits a malicious webpage or opens a malicious file, allowing an attacker to execute arbitrary code in the context of the current process. The vulnerability has a CVSS 3.1 score of 7.8 (HIGH) with attack vector LOCAL, attack complexity LOW, privileges required NONE, and user interaction REQUIRED. Delta Electronics has released version 2.1.0.20 to remediate this issue.

Defensive priority

HIGH

Recommended defensive actions

• Update Delta Electronics CNCSoft-G2 to version 2.1.0.20 or later as recommended by the vendor.
• Do not click on untrusted Internet links or open unsolicited email attachments.
• Avoid exposing control systems and equipment to the Internet.
• Place control systems and devices behind firewalls and isolate them from business networks.
• Use secure remote access methods such as VPNs when remote access is required.
• Review Delta's security advisory Delta-PCSA-2025-00002 for additional technical details.
• Contact Delta Electronics support through their portal for product-related assistance.

Evidence notes

Vulnerability is a heap-based buffer overflow in CNCSoft-G2 v2.0.0.5. Attack vector requires user interaction (visiting malicious page or opening malicious file). CVSS 3.1 score: 7.8 (HIGH).

Official resources