Windows Server 20H2 vulnerabilitiesAnd the versions its exploited flaws hit.
Windows Server 20H2 is made by Microsoft. We track 52 published vulnerabilities in it, across 15 versions. 35 of them are on the list of flaws known to be exploited, the newest added on 18 August 2022. If you run Windows Server 20H2, check your version against the exploited flaws below and patch those first.
The most recent Windows Server 20H2 flaw added to the known-exploited list is CVE-2022-21971, on 18 August 2022. We keep watching the known-exploited list.
Which versions of Windows Server 20H2 do the exploited flaws hit?
Each exploited flaw lists the versions it affects, usually as ranges. "before 10.0.19042.1526" means every version up to, but not including, 10.0.19042.1526. Find your version, then patch.
- CVE-2022-21971Exploited list, 18 Aug 2022
Microsoft Windows Runtime Remote Code Execution Vulnerability
before 10.0.19042.1526 - CVE-2022-34713Exploited list, 9 Aug 2022
Microsoft Windows Support Diagnostic Tool (MSDT) Remote Code Execution Vulnerability
before 10.0.19042.1889 - CVE-2022-22047Exploited list, 12 Jul 2022
Microsoft Windows Client Server Runtime Subsystem (CSRSS) Privilege Escalation Vulnerability
before 10.0.19042.1826 - CVE-2022-26925Exploited list, 1 Jul 2022
Microsoft Windows LSA Spoofing Vulnerability
before 10.0.19042.1706 - CVE-2022-30190Exploited list, 14 Jun 2022
Microsoft Windows Support Diagnostic Tool (MSDT) Remote Code Execution Vulnerability
before 10.0.19042.1766 - CVE-2022-26904Exploited list, 25 Apr 2022
Microsoft Windows User Profile Service Privilege Escalation Vulnerability
before 10.0.19042.1645 - CVE-2021-40450Exploited list, 25 Apr 2022
Microsoft Win32k Privilege Escalation Vulnerability
before 10.0.19042.1288 - CVE-2021-41357Exploited list, 25 Apr 2022
Microsoft Win32k Privilege Escalation Vulnerability
before 10.0.19042.1288 - CVE-2022-21919Exploited list, 25 Apr 2022
Microsoft Windows User Profile Service Privilege Escalation Vulnerability
before 10.0.19042.1466 - CVE-2022-22718Exploited list, 19 Apr 2022
Microsoft Windows Print Spooler Privilege Escalation Vulnerability
before 10.0.19042.1526 - CVE-2022-24521Exploited list, 13 Apr 2022
Microsoft Windows CLFS Driver Privilege Escalation Vulnerability
before 10.0.19042.1645 - CVE-2021-42278Exploited list, 11 Apr 2022
Microsoft Active Directory Domain Services Privilege Escalation Vulnerability
before 10.0.19042.1348 - CVE-2021-31166Exploited list, 6 Apr 2022
Microsoft HTTP Protocol Stack Remote Code Execution Vulnerability
before 10.0.19042.982 - CVE-2021-34484Exploited list, 31 Mar 2022
Microsoft Windows User Profile Service Privilege Escalation Vulnerability
before 10.0.19042.1165 - CVE-2021-34486Exploited list, 28 Mar 2022
Microsoft Windows Event Tracing Privilege Escalation Vulnerability
before 10.0.19042.1165 - CVE-2022-21999Exploited list, 25 Mar 2022
Microsoft Windows Print Spooler Privilege Escalation Vulnerability
before 10.0.19042.1526 - CVE-2021-41379Exploited list, 3 Mar 2022
Microsoft Windows Installer Privilege Escalation Vulnerability
before 10.0.19042.1348 - CVE-2022-21882Exploited list, 4 Feb 2022
Microsoft Win32k Privilege Escalation Vulnerability
before 10.0.19042.1466 - CVE-2021-40449Exploited list, 17 Nov 2021
Microsoft Windows Win32k Privilege Escalation Vulnerability
before 10.0.19042.1288 - CVE-2021-36955Exploited list, 3 Nov 2021
Microsoft Windows Common Log File System (CLFS) Driver Privilege Escalation Vulnerability
before 10.0.19042.1237 - CVE-2021-31199Exploited list, 3 Nov 2021
Microsoft Enhanced Cryptographic Provider Privilege Escalation Vulnerability
before 10.0.19042.1052 - CVE-2021-31201Exploited list, 3 Nov 2021
Microsoft Enhanced Cryptographic Provider Privilege Escalation Vulnerability
before 10.0.19042.1052 - CVE-2021-31955Exploited list, 3 Nov 2021
Microsoft Windows Kernel Information Disclosure Vulnerability
before 10.0.19042.1052 - CVE-2021-31956Exploited list, 3 Nov 2021
Microsoft Windows NTFS Privilege Escalation Vulnerability
before 10.0.19042.1052 - CVE-2021-31979Exploited list, 3 Nov 2021
Microsoft Windows Kernel Privilege Escalation Vulnerability
before 10.0.19042.1110 - CVE-2021-33739Exploited list, 3 Nov 2021
Microsoft Desktop Window Manager (DWM) Core Library Privilege Escalation Vulnerability
before 10.0.19042.1052 - CVE-2021-33771Exploited list, 3 Nov 2021
Microsoft Windows Kernel Privilege Escalation Vulnerability
before 10.0.19042.1110
3 more exploited flaws name Windows Server 20H2 without a version of its own, for example as the system other affected software runs on. They are in the list below.
Showing the 30 most recently added of 35 exploited flaws. The full list is below.
Which Windows Server 20H2 vulnerabilities are being exploited?
35 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 Runtime Remote Code Execution Vulnerability
Microsoft Windows Runtime contains an unspecified vulnerability that allows for remote code execution.
- 7.8Microsoft Windows Support Diagnostic Tool (MSDT) Remote Code Execution Vulnerability
A remote code execution vulnerability exists when Microsoft Windows MSDT is called using the URL protocol from a calling application.
- 7.8Microsoft Windows Client Server Runtime Subsystem (CSRSS) Privilege Escalation Vulnerability
Microsoft Windows CSRSS contains an unspecified vulnerability that allows for privilege escalation to SYSTEM privileges.
- 8.1Microsoft Windows LSA Spoofing Vulnerability
Microsoft Windows Local Security Authority (LSA) contains a spoofing vulnerability where an attacker can coerce the domain controller to authenticate to the attacker using NTLM.
- 7.8Microsoft Windows Support Diagnostic Tool (MSDT) Remote Code Execution Vulnerability
A remote code execution vulnerability exists when MSDT is called using the URL protocol from a calling application such as Word.
- 7.0Microsoft Windows User Profile Service Privilege Escalation Vulnerability
Microsoft Windows User Profile Service contains an unspecified vulnerability that allows for privilege escalation.
- 7.8Microsoft Win32k Privilege Escalation Vulnerability
Microsoft Win32k contains an unspecified vulnerability that allows for privilege escalation.
- 7.8Microsoft Win32k Privilege Escalation Vulnerability
Microsoft Win32k contains an unspecified vulnerability that allows for privilege escalation.
Which Windows Server 20H2 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.
- >99%
HTTP Protocol Stack Remote Code Execution Vulnerability
- >99%
<p>A remote code execution vulnerability exists when the Windows Print Spooler service improperly performs privileged file operations.
- >99%
An elevation of privilege vulnerability exists when an attacker establishes a vulnerable Netlogon secure channel connection to a domain controller, using the Netlogon Remote Protocol (MS-NRPC).
- >99%
A remote code execution vulnerability exists when MSDT is called using the URL protocol from a calling application such as Word.
- 98%
<p>Microsoft is investigating reports of a remote code execution vulnerability in MSHTML that affects Microsoft Windows.
- 81%
Windows Kernel Information Disclosure Vulnerability
- 78%
Windows Win32k Elevation of Privilege Vulnerability
- 74%
Win32k Elevation of Privilege Vulnerability
- 73%
Active Directory Domain Services Elevation of Privilege Vulnerability
- 68%
Microsoft Windows Support Diagnostic Tool (MSDT) Remote Code Execution Vulnerability
Running Windows Server 20H2? We'll keep checking.
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1 flaw being exploited affects software Acme tracks
Microsoft Windows Runtime contains an unspecified vulnerability that allows for remote code execution.
- Matched to
- Windows Server 20H2 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 52 published vulnerabilities listed under the name Windows Server 20H2, across 15 versions. The most recent Windows Server 20H2 flaw added to the known-exploited list is CVE-2022-21971, on 18 August 2022.
35 are on the list of flaws known to be exploited. The most recently added are CVE-2022-21971, CVE-2022-34713 and CVE-2022-22047.
Each flaw names its own versions, usually as ranges. The newest, CVE-2022-21971, affects before 10.0.19042.1526. The versions for every exploited flaw are listed on this page.
Create a Precursor Intelligence account and track Windows Server 20H2. 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.