CVE-2023-43683: Medium severity Malwarebytes Malwarebytes vulnerability

Published Aug 14, 2025
·
Updated

An issue was discovered in Malwarebytes 4.6.14.326 and before 5.1.5.116 (and Nebula 2020-10-21 and later). A Stack buffer out-of-bounds access exists because of an integer underflow when handling newline characters.

Affected Software

2 affected components
Malwarebytes Malwarebytes>=4.6.14.326<5.1.5.116
Malwarebytes Nebula>=2020-10-21

Event History

Aug 14, 2025
CVE Published
via MITRE·12:00 AM
Data Sourced
via MITRE·12:00 AM
Description
Data Sourced
via NVD·05:15 PM
DescriptionSeverityWeakness
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Frequently Asked Questions

1

What is the severity of CVE-2023-43683?

CVE-2023-43683 is classified as a critical vulnerability due to potential exploitation leading to arbitrary code execution.

2

How do I fix CVE-2023-43683?

To fix CVE-2023-43683, update Malwarebytes to version 5.1.5.116 or later, or ensure that Nebula is updated past version 2020-10-21.

3

What are the potential impacts of CVE-2023-43683?

The potential impacts of CVE-2023-43683 include system instability and unauthorized access to system resources.

4

Which products are affected by CVE-2023-43683?

CVE-2023-43683 affects Malwarebytes versions 4.6.14.326 and earlier, as well as Nebula versions from 2020-10-21.

5

How does CVE-2023-43683 exploit the system?

CVE-2023-43683 exploits the system through a stack buffer out-of-bounds access resulting from an integer underflow during the processing of newline characters.

Contact

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