CVE-2023-43686

6.2 mediumEPSS 0.1%

Medium (6.2). EPSS 0.1% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

6.2 medium

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.1% chance of exploitation in the next 30 days; higher than 1% of CVEs (scores of 2026-10-31)
CWE: CWE-755
Published: 2026-06-09
Modified: 2026-07-23
Record from: the NVD, synced 2026-10-19

References

https://www.malwarebytes.com/secure/cves/cve-2023-43686

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