Windows Server 1909 vulnerabilitiesAnd the versions its exploited flaws hit.

Product15 known exploited0 versions
The short answer

Windows Server 1909 is made by Microsoft. We track 15 published vulnerabilities in it, across 0 versions. 15 of them are on the list of flaws known to be exploited, the newest added on 23 May 2022. If you run Windows Server 1909, check your version against the exploited flaws below and patch those first.

Check your version

The most recent Windows Server 1909 flaw added to the known-exploited list is CVE-2020-1027, on 23 May 2022. We keep watching the known-exploited list.

Versions

Which versions of Windows Server 1909 do the exploited flaws hit?

Each exploited flaw lists the versions it affects, as published by the vendor. Find your version, then patch.

  • CVE-2020-1472Exploited list, 3 Nov 2021

    Microsoft Netlogon Privilege Escalation Vulnerability

    all versions

14 more exploited flaws name Windows Server 1909 without a version of its own, for example as the system other affected software runs on. They are in the list below.

Known exploited

Which Windows Server 1909 vulnerabilities are being exploited?

15 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.

  1. 7.8
    CVE-2020-1027HighKnown exploited
    Microsoft Windows Kernel Privilege Escalation Vulnerability

    An elevation of privilege vulnerability exists in the way that the Windows Kernel handles objects in memory.

    Chance of use4.5%Known exploited since23 May 2022
  2. 7.8
    CVE-2020-0638HighKnown exploited
    Microsoft Update Notification Manager Privilege Escalation Vulnerability

    Microsoft Update Notification Manager contains an unspecified vulnerability that allows for privilege escalation.

    Chance of use2.4%Known exploited since23 May 2022
  3. 10.0
    CVE-2020-0796CriticalKnown exploited
    Microsoft SMBv3 Remote Code Execution Vulnerability

    A remote code execution vulnerability exists in the way that the Microsoft Server Message Block 3.1.1 (SMBv3) protocol handles certain requests.

    Chance of use>99%Known exploited since10 Feb 2022
  4. 7.8
    CVE-2020-0787HighKnown exploited
    Microsoft Windows Background Intelligent Transfer Service (BITS) Improper Privilege Management Vulnerability

    Microsoft Windows BITS is vulnerable to to a privilege elevation vulnerability if it improperly handles symbolic links.

    Chance of use43%Known exploited since28 Jan 2022
  5. 8.8
    CVE-2020-1020HighKnown exploited
    Microsoft Windows Adobe Font Manager Library Remote Code Execution Vulnerability

    Microsoft Windows Adobe Font Manager Library contains an unspecified vulnerability when handling specially crafted multi-master fonts (Adobe Type 1 PostScript format) that allows for remote code execution for all...

    Chance of use65%Known exploited since3 Nov 2021
  6. 7.8
    CVE-2020-1054HighKnown exploited
    Microsoft Win32k Privilege Escalation Vulnerability

    Microsoft Win32k contains a privilege escalation vulnerability when the Windows kernel-mode driver fails to properly handle objects in memory.

    Chance of use54%Known exploited since3 Nov 2021
  7. 7.8
    CVE-2020-1464HighKnown exploited
    Microsoft Windows Spoofing Vulnerability

    Microsoft Windows contains a spoofing vulnerability when Windows incorrectly validates file signatures, allowing an attacker to bypass security features and load improperly signed files.

    Chance of use39%Known exploited since3 Nov 2021
  8. 5.5
    CVE-2020-1472MediumKnown exploited
    Microsoft Netlogon Privilege Escalation Vulnerability

    Microsoft's Netlogon Remote Protocol (MS-NRPC) contains a privilege escalation vulnerability when an attacker establishes a vulnerable Netlogon secure channel connection to a domain controller.

    Chance of use>99%Known exploited since3 Nov 2021
Exploit likelihood

Which Windows Server 1909 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.

50% or more10% to 49%Under 10%
  1. >99%
    CVE-2020-0796CriticalKnown exploited

    A remote code execution vulnerability exists in the way that the Microsoft Server Message Block 3.1.1 (SMBv3) protocol handles certain requests, aka 'Windows SMBv3 Client/Server Remote Code Execution Vulnerability'.

    CVSS10.0Published12 Mar 2020
  2. >99%
    CVE-2020-1472MediumKnown exploited

    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).

    CVSS5.5Published17 Aug 2020
  3. 89%
    CVE-2020-0601HighKnown exploited

    A spoofing vulnerability exists in the way Windows CryptoAPI (Crypt32.dll) validates Elliptic Curve Cryptography (ECC) certificates.An attacker could exploit the vulnerability by using a spoofed code-signing...

    CVSS8.1Published14 Jan 2020
  4. 78%
    CVE-2021-1732HighKnown exploited

    Windows Win32k Elevation of Privilege Vulnerability

    CVSS7.8Published25 Feb 2021
  5. 69%
    CVE-2020-0938HighKnown exploited

    A remote code execution vulnerability exists in Microsoft Windows when the Windows Adobe Type Manager Library improperly handles a specially-crafted multi-master font - Adobe Type 1 PostScript format.For all systems...

    CVSS7.8Published15 Apr 2020
  6. 65%
    CVE-2020-1020HighKnown exploited

    A remote code execution vulnerability exists in Microsoft Windows when the Windows Adobe Type Manager Library improperly handles a specially-crafted multi-master font - Adobe Type 1 PostScript format.For all systems...

    CVSS8.8Published15 Apr 2020
  7. 54%
    CVE-2020-1054HighKnown exploited

    An elevation of privilege vulnerability exists in Windows when the Windows kernel-mode driver fails to properly handle objects in memory, aka 'Win32k Elevation of Privilege Vulnerability'.

    CVSS7.8Published21 May 2020
  8. 43%
    CVE-2020-0787HighKnown exploited

    An elevation of privilege vulnerability exists when the Windows Background Intelligent Transfer Service (BITS) improperly handles symbolic links, aka 'Windows Background Intelligent Transfer Service Elevation of...

    CVSS7.8Published12 Mar 2020
  9. 39%
    CVE-2021-1647HighKnown exploited

    Microsoft Defender Remote Code Execution Vulnerability

    CVSS7.8Published12 Jan 2021
  10. 39%
    CVE-2020-1464HighKnown exploited

    A spoofing vulnerability exists when Windows incorrectly validates file signatures.

    CVSS7.8Published17 Aug 2020
Precursor Intelligence

Running Windows Server 1909? We'll keep checking.

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We track 15 published vulnerabilities listed under the name Windows Server 1909, across 0 versions. The most recent Windows Server 1909 flaw added to the known-exploited list is CVE-2020-1027, on 23 May 2022.

15 are on the list of flaws known to be exploited. The most recently added are CVE-2020-1027, CVE-2020-0638 and CVE-2020-0796.

Each flaw names its own versions, usually as ranges. The newest, CVE-2020-1472, affects all versions. The versions for every exploited flaw are listed on this page.

Create a Precursor Intelligence account and track Windows Server 1909. 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.