Known Exploited Vulnerabilities

Focus on What Matters

There are 349,949 vulnerabilities in the CVE database.
Whilst only 1.1% are ever actively exploited.

This list contains the vulnerabilities that are actively exploited by malware and threat actors that you should prioritize first.

This table displays known exploited vulnerabilities (KEVs) that have been cataloged from over 60 public sources, including CISA, and our own private sensors. Each entry links to a CVE identifier, where the CVE details are enriched with EPSS scores, online mentions, scanner inclusion, exploitation, tags, and other metadata. The goal is to be an early warning system, even before being published by CISA. More data and features coming soon!

Aware of a KEV not on the list? Let us know!

CVE ID	Title	Vendor	Product	Added	Source
CVE-2018-8653	A remote code execution vulnerability exists in the way that the scripting engine handles objects in memory in Internet Explorer, aka "Scripting...	Microsoft	Internet Explorer 9, Internet Explorer 11, Internet Explorer 10	2021-11-03 00:00:00 UTC	CISA
CVE-2017-8759	Microsoft .NET Framework 2.0, 3.5, 3.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2 and 4.7 allow an attacker to execute code remotely via a malicious document or...	Microsoft Corporation	Microsoft .NET Framework	2021-11-03 00:00:00 UTC	CISA
CVE-2021-40444	Microsoft MSHTML Remote Code Execution Vulnerability	Microsoft	Windows 10 Version 1809, Windows Server 2019, Windows Server 2019 (Server Core installation), Windows 10 Version 1909, Windows 10 Version 21H1, Windows Server 2022, Windows 10 Version 2004, Windows Server version 2004, Windows 10 Version 20H2, Windows Server version 20H2, Windows 10 Version 1507, Windows 10 Version 1607, Windows Server 2016, Windows Server 2016 (Server Core installation), Windows 7, Windows 7 Service Pack 1, Windows 8.1, Windows Server 2008 Service Pack 2, Windows Server 2008 Service Pack 2 (Server Core installation), Windows Server 2008 Service Pack 2, Windows Server 2008 R2 Service Pack 1, Windows Server 2008 R2 Service Pack 1 (Server Core installation), Windows Server 2012, Windows Server 2012 (Server Core installation), Windows Server 2012 R2, Windows Server 2012 R2 (Server Core installation)	2021-11-03 00:00:00 UTC	CISA
CVE-2019-0859	An elevation of privilege vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory, aka 'Win32k...	Microsoft	Windows, Windows Server	2021-11-03 00:00:00 UTC	CISA
CVE-2021-26411	Internet Explorer Memory Corruption Vulnerability	Microsoft	Internet Explorer 9, Internet Explorer 11, Microsoft Edge (EdgeHTML-based)	2021-11-03 00:00:00 UTC	CISA
CVE-2020-1350	A remote code execution vulnerability exists in Windows Domain Name System servers when they fail to properly handle requests, aka 'Windows DNS...	Microsoft	Windows Server, Windows Server, version 1909 (Server Core installation), Windows Server, version 1903 (Server Core installation), Windows Server, version 2004 (Server Core installation)	2021-11-03 00:00:00 UTC	CISA
CVE-2021-28310	Win32k Elevation of Privilege Vulnerability	Microsoft	Windows 10 Version 1803, Windows 10 Version 1809, Windows Server 2019, Windows Server 2019 (Server Core installation), Windows 10 Version 1909, Windows Server, version 1909 (Server Core installation), Windows 10 Version 2004, Windows Server version 2004, Windows 10 Version 20H2, Windows Server version 20H2	2021-11-03 00:00:00 UTC	CISA
CVE-2020-1040	A remote code execution vulnerability exists when Hyper-V RemoteFX vGPU on a host server fails to properly validate input from an authenticated...	Microsoft	Windows Server	2021-11-03 00:00:00 UTC	CISA
CVE-2019-0803	An elevation of privilege vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory, aka 'Win32k...	Microsoft	Windows, Windows Server	2021-11-03 00:00:00 UTC	CISA
CVE-2021-31207	Microsoft Exchange Server Security Feature Bypass Vulnerability	Microsoft	Microsoft Exchange Server 2013 Cumulative Update 23, Microsoft Exchange Server 2019 Cumulative Update 9, Microsoft Exchange Server 2016 Cumulative Update 20, Microsoft Exchange Server 2016 Cumulative Update 19, Microsoft Exchange Server 2019 Cumulative Update 8	2021-11-03 00:00:00 UTC	CISA
CVE-2021-34527	Windows Print Spooler Remote Code Execution Vulnerability	Microsoft	Windows 10 Version 1809, Windows Server 2019, Windows Server 2019 (Server Core installation), Windows Server 2022, Windows 10 Version 20H2, Windows Server version 20H2, Windows 11 version 21H2, Windows 10 Version 21H2, Windows 11 version 22H2, Windows 10 Version 22H2, Windows 10 Version 1507, Windows 10 Version 1607, Windows Server 2016, Windows Server 2016 (Server Core installation), Windows 8.1, Windows Server 2008 Service Pack 2, Windows Server 2008 Service Pack 2 (Server Core installation), Windows Server 2008 Service Pack 2, Windows Server 2008 R2 Service Pack 1, Windows Server 2008 R2 Service Pack 1 (Server Core installation), Windows Server 2012, Windows Server 2012 (Server Core installation), Windows Server 2012 R2, Windows Server 2012 R2 (Server Core installation)	2021-11-03 00:00:00 UTC	CISA
CVE-2021-1732	Windows Win32k Elevation of Privilege Vulnerability	Microsoft	Windows 10 Version 1803, Windows 10 Version 1809, Windows Server 2019, Windows Server 2019 (Server Core installation), Windows 10 Version 1909, Windows Server, version 1909 (Server Core installation), Windows 10 Version 2004, Windows Server version 2004, Windows 10 Version 20H2, Windows Server version 20H2	2021-11-03 00:00:00 UTC	CISA
CVE-2020-1464	Windows Spoofing Vulnerability	Microsoft	Windows 10 Version 1803, Windows 10 Version 1809, Windows Server 2019, Windows Server 2019 (Server Core installation), Windows 10 Version 1909, Windows Server, version 1909 (Server Core installation), Windows 10 Version 1709 for 32-bit Systems, Windows 10 Version 1709, Windows 10 Version 1903 for 32-bit Systems, Windows 10 Version 1903 for x64-based Systems, Windows 10 Version 1903 for ARM64-based Systems, Windows Server, version 1903 (Server Core installation), Windows 10 Version 2004, Windows Server version 2004, Windows 10 Version 1507, Windows 10 Version 1607, Windows Server 2016, Windows Server 2016 (Server Core installation), Windows 7, Windows 7 Service Pack 1, Windows 8.1, Windows Server 2008 Service Pack 2, Windows Server 2008 Service Pack 2 (Server Core installation), Windows Server 2008 Service Pack 2, Windows Server 2008 R2 Service Pack 1, Windows Server 2008 R2 Service Pack 1 (Server Core installation), Windows Server 2012, Windows Server 2012 (Server Core installation), Windows Server 2012 R2, Windows Server 2012 R2 (Server Core installation)	2021-11-03 00:00:00 UTC	CISA
CVE-2021-34473	Microsoft Exchange Server Remote Code Execution Vulnerability	Microsoft	Microsoft Exchange Server 2013 Cumulative Update 23, Microsoft Exchange Server 2019 Cumulative Update 9, Microsoft Exchange Server 2016 Cumulative Update 20, Microsoft Exchange Server 2016 Cumulative Update 19, Microsoft Exchange Server 2019 Cumulative Update 8	2021-11-03 00:00:00 UTC	CISA
CVE-2019-0708	A remote code execution vulnerability exists in Remote Desktop Services formerly known as Terminal Services when an unauthenticated attacker...	Microsoft	Windows, Windows Server	2021-11-03 00:00:00 UTC	CISA
CVE-2016-7255	The kernel-mode drivers in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows Server 2012 Gold...	Microsoft	Windows	2021-11-03 00:00:00 UTC	CISA
CVE-2017-0143	The SMBv1 server in Microsoft Windows Vista SP2; Windows Server 2008 SP2 and R2 SP1; Windows 7 SP1; Windows 8.1; Windows Server 2012 Gold and R2;...	Microsoft Corporation	Windows SMB	2021-11-03 00:00:00 UTC	CISA
CVE-2020-0688	A remote code execution vulnerability exists in Microsoft Exchange software when the software fails to properly handle objects in memory, aka...	Microsoft	Microsoft Exchange Server 2013, Microsoft Exchange Server 2019 Cumulative Update 3, Microsoft Exchange Server 2016 Cumulative Update 14, Microsoft Exchange Server 2016 Cumulative Update 15, Microsoft Exchange Server 2019 Cumulative Update 4, Microsoft Exchange Server 2010 Service Pack 3 Update Rollup 30	2021-11-03 00:00:00 UTC	CISA
CVE-2021-38649	Open Management Infrastructure Elevation of Privilege Vulnerability	Microsoft	Open Management Infrastructure, System Center Operations Manager (SCOM), Azure Automation State Configuration, DSC Extension, Azure Automation Update Management, Log Analytics Agent, Azure Diagnostics (LAD), Container Monitoring Solution, Azure Security Center, Azure Sentinel, Azure Stack Hub	2021-11-03 00:00:00 UTC	CISA
CVE-2021-36948	Windows Update Medic Service Elevation of Privilege Vulnerability	Microsoft	Windows 10 Version 1809, Windows Server 2019, Windows Server 2019 (Server Core installation), Windows 10 Version 1909, Windows 10 Version 21H1, Windows 10 Version 2004, Windows Server version 2004, Windows 10 Version 20H2, Windows Server version 20H2	2021-11-03 00:00:00 UTC	CISA
CVE-2017-7269	Buffer overflow in the ScStoragePathFromUrl function in the WebDAV service in Internet Information Services (IIS) 6.0 in Microsoft Windows Server...	Microsoft	Internet Information Services (IIS)	2021-11-03 00:00:00 UTC	CISA
CVE-2021-34523	Microsoft Exchange Server Elevation of Privilege Vulnerability	Microsoft	Microsoft Exchange Server 2013 Cumulative Update 23, Microsoft Exchange Server 2019 Cumulative Update 9, Microsoft Exchange Server 2016 Cumulative Update 20, Microsoft Exchange Server 2016 Cumulative Update 19, Microsoft Exchange Server 2019 Cumulative Update 8	2021-11-03 00:00:00 UTC	CISA
CVE-2021-38645	Open Management Infrastructure Elevation of Privilege Vulnerability	Microsoft	Open Management Infrastructure, System Center Operations Manager (SCOM), Azure Automation State Configuration, DSC Extension, Azure Automation Update Management, Log Analytics Agent, Azure Diagnostics (LAD), Container Monitoring Solution, Azure Security Center, Azure Sentinel, Azure Stack Hub	2021-11-03 00:00:00 UTC	CISA
CVE-2020-1020	A remote code execution vulnerability exists in Microsoft Windows when the Windows Adobe Type Manager Library improperly handles a...	Microsoft	Windows, Windows Server, Windows 10 Version 1909 for 32-bit Systems, Windows 10 Version 1909 for x64-based Systems, Windows 10 Version 1909 for ARM64-based Systems, Windows Server, version 1909 (Server Core installation), Windows 10 Version 1903 for 32-bit Systems, Windows 10 Version 1903 for x64-based Systems, Windows 10 Version 1903 for ARM64-based Systems, Windows Server, version 1903 (Server Core installation)	2021-11-03 00:00:00 UTC	CISA
CVE-2020-0986	An elevation of privilege vulnerability exists when the Windows kernel fails to properly handle objects in memory, aka 'Windows Kernel Elevation of...	Microsoft	Windows, Windows Server, Windows 10 Version 1909 for 32-bit Systems, Windows 10 Version 1909 for x64-based Systems, Windows 10 Version 1909 for ARM64-based Systems, Windows Server, version 1909 (Server Core installation), Windows 10 Version 1903 for 32-bit Systems, Windows 10 Version 1903 for x64-based Systems, Windows 10 Version 1903 for ARM64-based Systems, Windows Server, version 1903 (Server Core installation), Windows 10 Version 2004 for 32-bit Systems, Windows Server, version 2004 (Server Core installation), Windows 10 Version 2004 for ARM64-based Systems, Windows 10 Version 2004 for x64-based Systems	2021-11-03 00:00:00 UTC	CISA

Displaying vulnerabilities 3451 - 3475 of 3822 in total