CVE-2020-27289: Delta Industrial Automation CNCSoft-B DOPSoft DPA File Parsing Untrusted Pointer Dereference Remote Code Execution Vulnerability

Published Jan 11, 2021
·
Updated

Delta Electronics CNCSoft-B Versions 1.0.0.2 and prior has a null pointer dereference issue while processing project files, which may allow an attacker to execute arbitrary code.

Other sources

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 DPA files in the DOPSoft application. The issue results from the lack of proper validation of a user-supplied value prior to dereferencing it as a pointer. An attacker can leverage this vulnerability to execute code in the context of the current process.

Affected Software

3 affected components
Delta Electronics CNCSoft-B Versions 1.0.0.2 and prior
Deltaww Cncsoft-b<=1.0.0.2
Delta Industrial Automation CNCSoft-B

Event History

Jan 11, 2021
CVE Published
via MITRE·03:27 PM
Data Sourced
via MITRE·03:27 PM
DescriptionWeakness
Mar 26, 2025
Advisory Published
via ZDI·12:52 AM

Parent advisories

This vulnerability appears in the following advisories.

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Frequently Asked Questions

1

What is CVE-2020-27289?

CVE-2020-27289 is a vulnerability in Delta Industrial Automation CNCSoft-B that allows remote attackers to execute arbitrary code.

2

How severe is CVE-2020-27289?

CVE-2020-27289 has a severity rating of 7.8 out of 10, which is classified as high.

3

How does the CVE-2020-27289 vulnerability work?

The specific flaw in CVE-2020-27289 exists within the DOPSoft DPA file parsing, allowing untrusted pointer dereference and remote code execution.

4

What software is affected by CVE-2020-27289?

Delta Industrial Automation CNCSoft-B versions up to and including 1.0.0.2 are affected by CVE-2020-27289.

5

How can CVE-2020-27289 be exploited?

CVE-2020-27289 requires user interaction, such as visiting a malicious page or opening a malicious file, to be exploited.

Contact

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