CVE-2023-43687 Race condition in n/a
A race condition in Malwarebytes allows attackers to execute arbitrary code by exploiting a lack of locks between file verification and execution.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2023-43687?
CVE-2023-43687 is a medium-severity vulnerability in n/a, published on 14 Aug 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An issue was discovered in Malwarebytes before 4.6.14.326 and before 5.1.5.116 (and Nebula 2020-10-21 and later). There is a Race condition that leads to code execution because of a lack of locks between file verification and execution.
Weakness: CWE-421
Which versions are affected by CVE-2023-43687?
How do I fix CVE-2023-43687?
No fix has been published for CVE-2023-43687 yet. Limit exposure of the affected software until one is available.
Is CVE-2023-43687 being exploited?
There is no known exploitation of CVE-2023-43687 in the wild and no public exploit code.
Sources
Also known as GHSA-9qvx-9g6p-7vfw.