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.
Metrics
Affected Vendors & Products
| Vendors | Products |
|---|---|
| Malwarebytes |
|
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No data.
References
| Link | Providers |
|---|---|
| https://www.malwarebytes.com/secure/cves/cve-2023-43686 |
|
History
Wed, 10 Jun 2026 00:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Malwarebytes
Malwarebytes malwarebytes |
|
| Vendors & Products |
Malwarebytes
Malwarebytes malwarebytes |
Tue, 09 Jun 2026 22:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Title | Denial of Service via Large Firefox Preference Files in Malwarebytes |
Tue, 09 Jun 2026 20:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Weaknesses | CWE-755 | |
| Metrics |
cvssV3_1
|
Tue, 09 Jun 2026 18:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| References |
|
MITRE
Status: PUBLISHED
Assigner: mitre
Published: 2026-06-09T00:00:00.000Z
Updated: 2026-06-09T19:26:47.712Z
Reserved: 2023-09-21T00:00:00.000Z
Link: CVE-2023-43686
Vulnrichment
Updated: 2026-06-09T19:26:34.075Z
NVD
Status : Deferred
Published: 2026-06-09T19:16:41.907
Modified: 2026-06-09T20:16:30.320
Link: CVE-2023-43686
Redhat
No data.