Malwarebytes DS via Firefox Pref Parser (CVE-2023-43686)
CVE-2023-43686 Published on June 9, 2026

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.

NVD

Vulnerability Analysis

CVE-2023-43686 is exploitable with local system access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity, and a high impact on availability.

Attack Vector:
LOCAL
Attack Complexity:
LOW
Privileges Required:
NONE
User Interaction:
NONE
Scope:
UNCHANGED
Confidentiality Impact:
NONE
Integrity Impact:
NONE
Availability Impact:
HIGH

Weakness Type

Improper Handling of Exceptional Conditions

The software does not handle or incorrectly handles an exceptional condition.


Products Associated with CVE-2023-43686

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