Advisory Details

April 15th, 2026

Malwarebytes Anti-Malware Uncontrolled Search Path Element Local Privilege Escalation Vulnerability

ZDI-26-267
ZDI-CAN-22936

CVE ID
CVSS SCORE 7.8, AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
AFFECTED VENDORS Malwarebytes
AFFECTED PRODUCTS Anti-Malware
VULNERABILITY DETAILS

This vulnerability allows local attackers to escalate privileges on affected installations of Malwarebytes Anti-Malware. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.

The specific flaw exists within the Malwarebytes service. The issue results from loading a file from an unsecured location. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM.

ADDITIONAL DETAILS

Fixed in version 1.0.6.31


DISCLOSURE TIMELINE
  • 2024-02-29 - Vulnerability reported to vendor
  • 2026-04-15 - Coordinated public release of advisory
  • 2026-04-15 - Advisory Updated
CREDIT Malcolm Stagg (@malcolmst) of SODIUM-24, LLC
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