ZDI-21-041: Delta Industrial Automation CNCSoft-B DOPSoft XLS File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Delta Industrial Automation CNCSoft-B. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of XLS files in the DOPSoft application. The issue results from the lack of proper validation of user-supplied data, which can result in a write before the start of an allocated data structure. An attacker can leverage this vulnerability to execute code in the context of the current process.

Affected Software

1 affected component
Delta Industrial Automation CNCSoft-B

Event History

Mar 26, 2025
Advisory Published
via ZDI·12:52 AM
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Frequently Asked Questions

1

What is the severity of ZDI-21-041?

The severity of ZDI-21-041 is high, as it allows remote code execution with user interaction.

2

How do I fix ZDI-21-041?

To fix ZDI-21-041, ensure that you apply the latest security patches provided by Delta Industrial Automation for CNCSoft-B.

3

What types of attacks can ZDI-21-041 enable?

ZDI-21-041 can enable remote attackers to execute arbitrary code, potentially compromising system integrity.

4

What is required to exploit ZDI-21-041?

Exploitation of ZDI-21-041 requires user interaction, such as visiting a malicious page or opening a malicious file.

5

Which software is affected by ZDI-21-041?

ZDI-21-041 affects Delta Industrial Automation's CNCSoft-B software.

Contact

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