Vulnerability identifier: #VU8295
Vulnerability risk: High
CVSSv3.1: 8.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C]
CVE-ID:
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
Microsoft Office
Client/Desktop applications /
Office applications
Microsoft Word
Client/Desktop applications /
Office applications
Vendor: Microsoft
Description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to boundary error when processing fonts within Win32k.sys driver. A remote unauthenticated attacker can create a specially crafted font, trick the victim into loading it and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
Windows: 8.1 - 8.1 RT, 7, 10
Windows Server: 2008 - 2016
Microsoft Office: 2010 Service Pack 2, 2007
Microsoft Word:
External links
http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8682
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, proof of concept for this vulnerability is available.