TippingPoint Zero Day Initiative

Trend Micro Maximum Security tmnciesc Kernel Driver Memory Corruption Privilege Escalation Vulnerability

ZDI-16-530: October 6th, 2016

CVSS Score

Affected Vendors

Affected Products

    Maximum Security

Vulnerability Details

This vulnerability allows local attackers to escalate privileges on vulnerable installations of Trend Micro Maximum Security. 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 processing of IOCTL 0x0022205c by the tmnciesc kernel driver. The issue lies in the failure to properly validate user-supplied data which can result in a memory corruption condition. An attacker can leverage this vulnerability to execute arbitrary code under the context of kernel.

Vendor Response

Trend Micro has issued an update to correct this vulnerability. More details can be found at:

Disclosure Timeline

    2016-06-21 - Vulnerability reported to vendor
    2016-10-06 - Coordinated public release of advisory


This vulnerability was discovered by:
    bee13oy of CloverSec Labs