Multiple serious vulnerabilities have been found in Microsoft Windows. Malicious users can exploit these vulnerabilities to gain privileges, cause a denial of service, obtain sensitive information, bypass security restrictions and execute arbitrary code.

Below is a complete list of vulnerabilities:

1. An incorrect handling of objects in memory in the Windows Graphics Device Interface (GDI) can be exploited locally to obtain sensitive information;
2. Multiple vulnerabilities in the Windows Kernel can be exploited locally via running a specially designed application to obtain sensitive information;
3. A memory corruption vulnerability in Microsoft Browsers can be exploited remotely via a specially designed website to execute arbitrary code;
4. An incorrect integrity-level validation in Microsoft Windows Storage can be exploited locally to bypass security restrictions;
5. An improper handling of embedded fonts in Microsoft font library can be exploited remotely via a specially designed website (web-based attack scenario) or document (file-sharing attack scenario) to execute arbitrary code;
6. An incorrect handling of DLL loading process in certain Windows components can be exploited locally to execute arbitrary code;
7. Multiple memory corruption vulnerabiltes in Windows Search can be exploited remotely via sending a specially designed messages to obtain sensitive information or execute arbitrary code;
8. An improper handling of DNS responses in Windows Domain Name System (DNS) can be exploited remotely by sending corrupted DNS response to the target to execute arbitrary code;
9. Multiple vulnerabilities in Microsoft Server Message Block server can be exploited remotely by sending a specially designed packet to the host to execute arbitrary code, cause denial of service, obtain sensitive information or gain privileges;
10. An incorrect handling of Advanced Local Procedure calls in Microsoft Windows can be exploited locally by running a specially designed application to gain privileges;
11. An unspecified vulnerability in Device Guard can be exploited locally by injecting malicious code into a script that is trusted by the Code Integrity policy to bypass securuty restrictions;
12. Multiple vulnerabilities in Windows Graphics component can be exploited locally via a specially crafted application to gain privileges or obtain sensitive information;
13. An incorrect enforcing of file sharing permissions in Windows Update Delivery Optimization can be exploited locally via creating a specially configued Delivery Optimization job to gain privileges;
14. An improper handling of objects in memory in Windows kernel-mode driver can be exploited locally via a specially designed application to gain privileges;
15. An incorrect handling of objects in memory in Windows Subsystem for Linux can be exploited locally via a specially designed application to cause denial of service;
16. Buffer overflow vulnerability in Microsoft JET Database Engine can be exploited via a specially designed Excel file to execute arbitrary code;
17. An improper accessing objects in memory in Microsoft Windows Text Services Framework can be exploited remotely via a specially designed website to execute arbitrary code.

Technical details

NB: Not every vulnerability already has CVSS rating, so cumulative CVSS rating can be not representative.

NB: At this moment Microsoft has just reserved CVE numbers for these vulnerabilities. Information can be changed soon.

Windows 7
Windows 8.1
Windows RT 8.1
Windows 10
Windows Server 2008
Windows Server 2008 R2
Windows Server 2012
Windows Server 2012 R2
Windows Server 2016

Install necessary updates from the KB section, that are listed in your Windows Update (Windows Update usually can be accessed from the Control Panel)

4038793
4041689
4041693
4041687
4041676
4041690
4041678
4041681
4041691
4042895
4041679
4042122
4042123
4042120
4042121
4041995
4042007
4042067
4041944
4041671
4050795
4023490
4048955

The following public exploits exists for this vulnerability:

https://www.exploit-db.com/exploits/43001

https://www.exploit-db.com/exploits/42997

Malware exists for this vulnerability. Usually such malware is classified as Exploit. More details.