TippingPoint Zero Day Initiative

PTC IsoView ActiveX Control ViewPort Heap Buffer Overflow Remote Code Execution Vulnerability

ZDI-14-399: December 4th, 2014


CVSS Score

Affected Vendors

Affected Products

    IsoView ActiveX Control

TippingPoint™ IPS Customer Protection

TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 13819. For further product information on the TippingPoint IPS:

Vulnerability Details

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of the PTC IsoView ActiveX control. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The specific flaw exists within the ViewPort property of the control. By setting the property to a malicious value, an attacker can overflow a statically allocated heap buffer. This could allow the attacker to execute arbitrary code in the context of the browser.

Vendor Response

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

Disclosure Timeline

    2014-05-20 - Vulnerability reported to vendor
    2014-12-04 - Coordinated public release of advisory


This vulnerability was discovered by:
    Andrea Micalizzi (rgod)