Vulnerability identifier: #VU965

Vulnerability risk: High

CVSSv3.1: 8.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:U/RL:U/RC:C]

CVE-ID: CVE-2016-3396

CWE-ID: CWE-119

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Microsoft .NET Framework
Server applications / Frameworks for developing and running applications
Microsoft Office
Client/Desktop applications / Office applications
Microsoft Silverlight
Client/Desktop applications / Plugins for browsers, ActiveX components
Windows
Operating systems & Components / Operating system
Windows Server
Operating systems & Components / Operating system
Microsoft Lync
Client/Desktop applications / Messaging software
Lync Attendee
Client/Desktop applications / Messaging software
Microsoft Live Meeting
Client/Desktop applications / Messaging software

Vendor: Microsoft

Description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
 
The weakness exists due to boundary error in the Graphics Device Interface (GDI) component. A remote attacker can create a specially crafted content containing embedded fonts, trick the victim into opening it, trigger memory corruption and execute arbitrary code with privileges of the current user.

Successful exploitation of the vulnerability results in arbitrary code execution on the vulnerable system.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Microsoft .NET Framework: 3.0, 3.5, 3.5.1, 4.6, 4.5.2

Microsoft Office: 2010, 2007

Microsoft Silverlight: 5

Windows: 8, 7, 8.1 RT, Vista

Windows Server: 2008 - 2008 R2

Microsoft Lync:

Lync Attendee: 2010

Microsoft Live Meeting: 2007 Console

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External links
http://technet.microsoft.com/en-us/library/security/MS16-120

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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.