Windows 10 vulnerabilitiesAnd the versions its exploited flaws hit.
Windows 10 is made by Microsoft. We track 4,066 published vulnerabilities listed under that exact name, across 15 versions. 20 of them are on the list of flaws known to be exploited, the newest added on 6 October 2025. Microsoft lists newer releases under their own names, such as Windows 10 1809, so check those pages too.
The most recent Windows 10 flaw added to the known-exploited list is CVE-2021-43226, on 6 October 2025. We keep watching the known-exploited list.
Is Windows 10 listed under other names? Yes.
Microsoft also lists Windows 10 under more specific names, such as Windows 10 1809 and Windows 10 21H2. Flaws listed only under those names are counted on their own pages, not here. If you run one of these, open its page for its own exploited flaws.
- Windows 10 18091,465 published vulnerabilities
- Windows 10 21H21,430 published vulnerabilities
- Windows 10 22H21,425 published vulnerabilities
- Windows 10 16071,294 published vulnerabilities
- Windows 10 15071,131 published vulnerabilities
- Windows 10 20H2293 published vulnerabilities
- Windows 10 21H189 published vulnerabilities
- Windows 10 180364 published vulnerabilities
- Windows 10 170958 published vulnerabilities
- Windows 10 190958 published vulnerabilities
- Windows 10 170347 published vulnerabilities
- Windows 10 151140 published vulnerabilities
Which versions of Windows 10 do the exploited flaws hit?
Each exploited flaw lists the versions it affects, as published by the vendor. Find your version, then patch.
- CVE-2021-43226Exploited list, 6 Oct 2025
Microsoft Windows Privilege Escalation Vulnerability
20h221h11607180919092004 - CVE-2019-0803Exploited list, 3 Nov 2021
Microsoft Win32k Privilege Escalation Vulnerability
16071703170918031809 - CVE-2020-0646Exploited list, 3 Nov 2021
Microsoft .NET Framework Remote Code Execution Vulnerability
160717091803180919031909 - CVE-2020-0878Exploited list, 3 Nov 2021
Microsoft Edge and Internet Explorer Memory Corruption Vulnerability
1909 - CVE-2018-4878Exploited list, 3 Nov 2021
Adobe Flash Player Use-After-Free Vulnerability
all versions - CVE-2020-17087Exploited list, 3 Nov 2021
Microsoft Windows Kernel Privilege Escalation Vulnerability
20h2160718031809190319092004 - CVE-2021-31956Exploited list, 3 Nov 2021
Microsoft Windows NTFS Privilege Escalation Vulnerability
1809 - CVE-2021-31979Exploited list, 3 Nov 2021
Microsoft Windows Kernel Privilege Escalation Vulnerability
1809 - CVE-2020-1147Exploited list, 3 Nov 2021
Microsoft .NET Framework, SharePoint, and Visual Studio Remote Code Execution Vulnerability
1607170918031809190319092004
11 more exploited flaws name Windows 10 without a version of its own, for example as the system other affected software runs on. They are in the list below.
Which Windows 10 vulnerabilities are being exploited?
20 flaws are on the government list of vulnerabilities known to be exploited. These are the ones criminals are using now, so they go first, whatever their severity score says.
- 7.8Microsoft Windows Privilege Escalation Vulnerability
Microsoft Windows Common Log File System Driver contains a privilege escalation vulnerability that could allow a local, privileged attacker to bypass certain security mechanisms.
- 8.8Adobe Flash Player and AIR Use-After-Free Vulnerability
Use-after-free vulnerability in Adobe Flash Player and Adobe AIR allows attackers to execute code.
- 8.8Adobe Flash Player and AIR Integer Overflow Vulnerability
Integer overflow vulnerability in Adobe Flash Player and AIR allows attackers to execute code.
- 6.6Microsoft Windows Mount Manager Privilege Escalation Vulnerability
A privilege escalation vulnerability exists when the Windows Mount Manager component improperly processes symbolic links.
- 9.8Adobe Flash Player Stack-based Buffer Overflow Vulnerability
Adobe Flash Player have a stack-based buffer overflow vulnerability that could lead to remote code execution.
- 8.8Microsoft Windows Adobe Type Manager Library Remote Code Execution Vulnerability
A remote code execution vulnerability exists in Microsoft Windows when the Windows Adobe Type Manager Library improperly handles specially crafted OpenType fonts.
- 9.8Adobe Flash Player Remote Code Execution Vulnerability
Unspecified vulnerability in Adobe Flash Player allows for remote code execution.
- 8.8Adobe Flash Player Use-After-Free Vulnerability
Adobe Flash Player has an exploitable use-after-free vulnerability in the TextField class.
Which Windows 10 flaws are most likely to be used?
Ranked by the latest exploit-likelihood forecast: the chance each flaw is used in an attack in the next 30 days. A high severity score on its own doesn't tell you that. Flaws shared by many other makers' products are left out.
- 87%
Buffer underflow in atmfd.dll in the Windows Adobe Type Manager Library in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, and...
- 85%CVE-2015-6132High
Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT Gold and 8.1, and Windows 10 Gold and 1511 mishandle library...
- 82%CVE-2017-0038Medium
gdi32.dll in Graphics Device Interface (GDI) in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT 8.1, and Windows 10 Gold, 1511,...
- 79%CVE-2017-0070High
A remote code execution vulnerability exists in the way affected Microsoft scripting engines render when handling objects in memory in Microsoft browsers.
- 78%CVE-2016-3236Critical
The Web Proxy Auto Discovery (WPAD) protocol implementation in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT 8.1, and Windows...
- 77%CVE-2017-0290High
The Microsoft Malware Protection Engine running on Microsoft Forefront and Microsoft Defender on Microsoft Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT...
- 73%CVE-2016-0117High
The PDF library in Microsoft Windows 8.1, Windows Server 2012 Gold and R2, Windows RT 8.1, and Windows 10 Gold and 1511 allows remote attackers to execute arbitrary code via a crafted PDF document, aka "Windows...
- 72%CVE-2017-8729High
Microsoft Edge in Microsoft Windows 10 1703 allows an attacker to execute arbitrary code in the context of the current user, due to the way that the Microsoft Edge scripting engine handles objects in memory, aka...
- 72%CVE-2017-8740High
Microsoft Edge in Microsoft Windows 10 1703 allows an attacker to execute arbitrary code in the context of the current user, due to the way that the Microsoft Edge scripting engine handles objects in memory, aka...
Running Windows 10? We'll keep checking.
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1 flaw being exploited affects software Acme tracks
Microsoft Windows Common Log File System Driver contains a privilege escalation vulnerability that could allow a local, privileged attacker to bypass certain security mechanisms.
- Matched to
- Windows 10 on Acme's software list
- What to do
- Patch first, then check for signs of use
Sent to the alert recipients Acme chose. Also in the app and to Acme's webhook.
We track 4,066 published vulnerabilities listed under the name Windows 10, across 15 versions. The most recent Windows 10 flaw added to the known-exploited list is CVE-2021-43226, on 6 October 2025.
20 are on the list of flaws known to be exploited. The most recently added are CVE-2021-43226, CVE-2016-0984 and CVE-2016-1010.
Microsoft also lists Windows 10 under more specific names, such as Windows 10 1809 and Windows 10 21H2. Flaws listed only under those names are counted on their own pages, not here. Open the release you run to see its own list.
Each flaw names its own versions, usually as ranges. The newest, CVE-2021-43226, affects 20h2, 21h1, 1607, 1809 and more. The versions for every exploited flaw are listed on this page.
Create a EdgeProtect account and track Windows 10. We match it against every published flaw, give each one a risk score from 0 to 100 and keep watching, so you hear about new ones as soon as we know, by email, in the app or by webhook.