Vulnerability identifier: #VU1206

Vulnerability risk: Critical

CVSSv3.1: 8.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:F/RL:O/RC:C]

CVE-ID: CVE-2006-4868

CWE-ID: CWE-119

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
Windows
Operating systems & Components / Operating system
Windows Server
Operating systems & Components / Operating system

Vendor: Microsoft

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to incorrect handling of input data in Vector Markup Language (VML) implementation (VGX.dll) in Microsoft Windows. A remote unauthenticated attacker can trick the victim to open a specially crafted web page or HTML file and execute arbitrary code on the target system with privileges of the current user.

Successful exploitation of this vulnerability may allow an attacker to compromise vulnerable system.

Note: this vulnerability is being actively exploited.

Mitigation
Install updated from vendor's website:
Microsoft Windows 2000 Service Pack 4:
Internet Explorer 5.01 Service Pack 4 on Microsoft Windows 2000 Service Pack 4 — Download the update

Vulnerable software versions

Windows: 2000, XP

Windows Server: 2003

External links
http://technet.microsoft.com/library/security/925568
http://technet.microsoft.com/library/security/ms06-055

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, a fully functional exploit for this vulnerability is available.