CVE-2023-43686
Medium
Description
An issue was discovered in Malwarebytes 4.x and 5.x (and Nebula 2020-10-21 and later). A large number of Firefox preference files can cause the parser to ignore other browser configuration files, leading to a denial of service.
SeverityMedium
CVSS6.2
Exploit probability—
ProductMalwarebytes
PublishedJun 9, 2026
First seenJun 9, 2026
Weakness typeCWE-755CWE-755
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Malwarebytes Malwarebytes | 4.x ≤ v ≤ 5.x | — |
| Malwarebytes Nebula | 2020-10-21 ≤ v | — |
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