Microsoft releases out-of-band security update to fix IE zero-day & Defender bug
1. IE zero day
The IE zero day is a very critical vulnerability which can be exploited via Remote Code Execution (RCE). Remote code execution is an attack that can be performed by executing malicious codes from remote location. The IE zero day is tracked with CVE-2019-1367identifier.
2.
Microsoft Defender DoS bug
Microsoft also released security patches to fix a DoS bug associated with Microsoft Defender. The good news is, to exploit the bug, the attacker first needs to gain access to the victim's system. Microsoft has released update v1.1.16400.2 to fix this issue.
Windows users are advised to install the following patches for these bugs immediately. The former needs to be patched manually while the latter will be done via silent update.
Updates for windows 10 & server 2016,2019 KB4522009 : 107422 - 2019-09 Cumulative Update for Windows 10 Version 1507 for x64-based Systems (KB4522009) 107423 - 2019-09 Cumulative Update for Windows 10 Version 1507 for x86-based Systems (KB4522009) KB4522010 : 107428 - 2019-09 Cumulative Update for Windows 10 Version 1607 for x64-based Systems (KB4522010) 107427 - 2019-09 Cumulative Update for Windows Server 2016 for x64-based Systems (KB4522010) 107426 - 2019-09 Cumulative Update for Windows 10 Version 1607 for x86-based Systems (KB4522010) KB4522011 : 107425 - 2019-09 Cumulative Update for Windows 10 Version 1703 for x64-based Systems (KB4522011) 107424 - 2019-09 Cumulative Update for Windows 10 Version 1703 for x86-based Systems (KB4522011) KB4522012 : 107438 - 2019-09 Cumulative Update for Windows 10 Version 1709 for x64-based Systems (KB4522012) 107439 - 2019-09 Cumulative Update for Windows 10 Version 1709 for x86-based Systems (KB4522012) KB4522014 : 107429 - 2019-09 Cumulative Update for Windows 10 Version 1803 for x64-based Systems (KB4522014) 107430 - 2019-09 Cumulative Update for Windows Server 2016 (1803) for x64-based Systems (KB4522014) 107431 - 2019-09 Cumulative Update for Windows 10 Version 1803 for x86-based Systems (KB4522014) KB4522015 : 107432 - 2019-09 Cumulative Update for Windows Server 2019 for x64-based Systems (KB4522015) 107433 - 2019-09 Cumulative Update for Windows 10 Version 1809 for x64-based Systems (KB4522015) 107434 - 2019-09 Cumulative Update for Windows 10 Version 1809 for x86-based Systems (KB4522015) KB4522016 : 107435 - 2019-09 Cumulative Update for Windows 10 Version 1903 for x86-based Systems (KB4522016) 107436 - 2019-09 Cumulative Update for Windows 10 Version 1903 for x64-based Systems (KB4522016) 107437 - 2019-09 Cumulative Update for Windows Server, version 1903 for x64-based Systems (KB4522016) Updates for windows 7 , 8.1, server 2008, server 2012, server 2008 R2, server 2012 R2 KB4522007 : 27546 - 2019-09 Cumulative Security Update for Internet Explorer 11 for Windows 7 for x86-based systems (KB4522007) 27544 - 2019-09 Cumulative Security Update for Internet Explorer 11 for Windows 7 for x64-based systems (KB4522007) 27544 - 2019-09 Cumulative Security Update for Internet Explorer 11 for Windows 7 for x64-based systems (KB4522007) 27542 - 2019-09 Cumulative Security Update for Internet Explorer 11 for Windows 8.1 for x64-based systems (KB4522007) 27539 - 2019-09 Cumulative Security Update for Internet Explorer 11 for Windows 8.1 for x86-based systems (KB4522007) 27537 - 2019-09 Cumulative Security Update for Internet Explorer 10 for Windows Server 2012 for x64-based systems (KB4522007) 27540 - 2019-09 Cumulative Security Update for Internet Explorer 11 for Windows Server 2012 for x64-based systems (KB4522007) 27541 - 2019-09 Cumulative Security Update for Internet Explorer 11 for Windows Server 2012 R2 for x64-based systems (KB4522007) 27543 - 2019-09 Cumulative Security Update for Internet Explorer 9 for Windows Server 2008 for x86-based systems (KB4522007) 27545 - 2019-09 Cumulative Security Update for Internet Explorer 9 for Windows Server 2008 for x64-based systems (KB4522007) 27538 - 2019-09 Cumulative Security Update for Internet Explorer 11 for Windows Server 2008 R2 for x64-based systems (KB4522007)