Windows Server 2019 vulnerabilitiesAnd the versions its exploited flaws hit.
Windows Server 2019 is made by Microsoft. We track 4,111 published vulnerabilities in it, across 56 versions. 160 of them are on the list of flaws known to be exploited, the newest added on 13 April 2026. If you run Windows Server 2019, check your version against the exploited flaws below and patch those first.
The most recent Windows Server 2019 flaw added to the known-exploited list is CVE-2023-36424, on 13 April 2026. We keep watching the known-exploited list.
Which versions of Windows Server 2019 do the exploited flaws hit?
Each exploited flaw lists the versions it affects, usually as ranges. "before 10.0.17763.7922" means every version up to, but not including, 10.0.17763.7922. Find your version, then patch.
- CVE-2025-59287Exploited list, 24 Oct 2025
Microsoft Windows Server Update Service (WSUS) Deserialization of Untrusted Data Vulnerability
before 10.0.17763.7922 - CVE-2025-33073Exploited list, 20 Oct 2025
Microsoft Windows SMB Client Improper Access Control Vulnerability
before 10.0.17763.7434 - CVE-2025-59230Exploited list, 14 Oct 2025
Microsoft Windows Improper Access Control Vulnerability
before 10.0.17763.7919 - CVE-2025-47827Exploited list, 14 Oct 2025
IGEL OS Use of a Key Past its Expiration Date Vulnerability
before 10.0.17763.7919 - CVE-2025-24990Exploited list, 14 Oct 2025
Microsoft Windows Untrusted Pointer Dereference Vulnerability
before 10.0.17763.7919 - CVE-2025-33053Exploited list, 10 Jun 2025
Microsoft Windows External Control of File Name or Path Vulnerability
before 10.0.17763.7434 - CVE-2025-30397Exploited list, 13 May 2025
Microsoft Windows Scripting Engine Type Confusion Vulnerability
before 10.0.17763.7314 - CVE-2025-32706Exploited list, 13 May 2025
Microsoft Windows Common Log File System (CLFS) Driver Heap-Based Buffer Overflow Vulnerability
before 10.0.17763.7314 - CVE-2025-30400Exploited list, 13 May 2025
Microsoft Windows DWM Core Library Use-After-Free Vulnerability
before 10.0.17763.7314 - CVE-2025-32709Exploited list, 13 May 2025
Microsoft Windows Ancillary Function Driver for WinSock Use-After-Free Vulnerability
before 10.0.17763.7314 - CVE-2025-32701Exploited list, 13 May 2025
Microsoft Windows Common Log File System (CLFS) Driver Use-After-Free Vulnerability
before 10.0.17763.7314 - CVE-2025-24054Exploited list, 17 Apr 2025
Microsoft Windows NTLM Hash Disclosure Spoofing Vulnerability
before 10.0.17763.7009 - CVE-2025-29824Exploited list, 8 Apr 2025
Microsoft Windows Common Log File System (CLFS) Driver Use-After-Free Vulnerability
before 10.0.17763.7136 - CVE-2025-24985Exploited list, 11 Mar 2025
Microsoft Windows Fast FAT File System Driver Integer Overflow Vulnerability
before 10.0.17763.7009 - CVE-2025-24984Exploited list, 11 Mar 2025
Microsoft Windows NTFS Information Disclosure Vulnerability
before 10.0.17763.7009 - CVE-2025-21391Exploited list, 11 Feb 2025
Microsoft Windows Storage Link Following Vulnerability
before 10.0.17763.6893 - CVE-2025-21418Exploited list, 11 Feb 2025
Microsoft Windows Ancillary Function Driver for WinSock Heap-Based Buffer Overflow Vulnerability
before 10.0.17763.6893 - CVE-2024-35250Exploited list, 16 Dec 2024
Microsoft Windows Kernel-Mode Driver Untrusted Pointer Dereference Vulnerability
before 10.0.17763.5936 - CVE-2024-49138Exploited list, 10 Dec 2024
Microsoft Windows Common Log File System (CLFS) Driver Heap-Based Buffer Overflow Vulnerability
before 10.0.17763.6659 - CVE-2024-43451Exploited list, 12 Nov 2024
Microsoft Windows NTLMv2 Hash Disclosure Spoofing Vulnerability
before 10.0.17763.6532 - CVE-2024-49039Exploited list, 12 Nov 2024
Microsoft Windows Task Scheduler Privilege Escalation Vulnerability
before 10.0.17763.6532 - CVE-2024-30088Exploited list, 15 Oct 2024
Microsoft Windows Kernel TOCTOU Race Condition Vulnerability
before 10.0.17763.5936 - CVE-2024-43572Exploited list, 8 Oct 2024
Microsoft Windows Management Console Remote Code Execution Vulnerability
before 10.0.17763.6414
7 more exploited flaws name Windows Server 2019 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 160 exploited flaws. The full list is below.
Which Windows Server 2019 vulnerabilities are being exploited?
50 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 Out-of-Bounds Read Vulnerability
Microsoft Windows Common Log File System Driver contains an out-of-bounds read vulnerability that could allow a threat actor for privileges escalation
- 9.8Microsoft Windows Server Update Service (WSUS) Deserialization of Untrusted Data Vulnerability
Microsoft Windows Server Update Service (WSUS) contains a deserialization of untrusted data vulnerability that allows for remote code execution.
- 8.8Microsoft Windows SMB Client Improper Access Control Vulnerability
Microsoft Windows SMB Client contains an improper access control vulnerability that could allow for privilege escalation.
- 7.8Microsoft Windows Improper Access Control Vulnerability
Microsoft Windows contains an improper access control vulnerability in Windows Remote Access Connection Manager which could allow an authorized attacker to elevate privileges locally.
- 4.6IGEL OS Use of a Key Past its Expiration Date Vulnerability
IGEL OS contains a use of a key past its expiration date vulnerability that allows for Secure Boot bypass.
- 7.8Microsoft Windows Untrusted Pointer Dereference Vulnerability
Microsoft Windows Agere Modem Driver contains an untrusted pointer dereference vulnerability that allows for privilege escalation.
- 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.
- 8.8Microsoft Windows External Control of File Name or Path Vulnerability
Microsoft Windows contains an external control of file name or path vulnerability that could allow an attacker to execute code from a remote WebDAV location specified by the WorkingDirectory attribute of Internet...
Which Windows Server 2019 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%
A remote code execution vulnerability exists when the Microsoft .NET Framework fails to validate input properly, aka '.NET Framework Remote Code Execution Injection Vulnerability'.
- 89%
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...
- 83%CVE-2019-0539High
A remote code execution vulnerability exists in the way that the Chakra scripting engine handles objects in memory in Microsoft Edge, aka "Chakra Scripting Engine Memory Corruption Vulnerability." This affects...
- 80%CVE-2019-0567High
A remote code execution vulnerability exists in the way that the Chakra scripting engine handles objects in memory in Microsoft Edge, aka "Chakra Scripting Engine Memory Corruption Vulnerability." This affects...
- 76%CVE-2019-1358High
A remote code execution vulnerability exists when the Windows Jet Database Engine improperly handles objects in memory, aka 'Jet Database Engine Remote Code Execution Vulnerability'.
- 76%CVE-2019-1439Medium
An information disclosure vulnerability exists when the Windows GDI component improperly discloses the contents of its memory, aka 'Windows GDI Information Disclosure Vulnerability'.
- 75%CVE-2019-1181Critical
A remote code execution vulnerability exists in Remote Desktop Services – formerly known as Terminal Services – when an unauthenticated attacker connects to the target system using RDP and sends specially crafted...
- 75%CVE-2020-0609Critical
A remote code execution vulnerability exists in Windows Remote Desktop Gateway (RD Gateway) when an unauthenticated attacker connects to the target system using RDP and sends specially crafted requests, aka 'Windows...
Running Windows Server 2019? We'll keep checking.
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1 flaw being exploited affects software Acme tracks
Microsoft Windows Common Log File System Driver contains an out-of-bounds read vulnerability that could allow a threat actor for privileges escalation
- Matched to
- Windows Server 2019 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 4,111 published vulnerabilities listed under the name Windows Server 2019, across 56 versions. The most recent Windows Server 2019 flaw added to the known-exploited list is CVE-2023-36424, on 13 April 2026.
160 are on the list of flaws known to be exploited. The most recently added are CVE-2023-36424, CVE-2025-59287 and CVE-2025-33073.
Each flaw names its own versions, usually as ranges. The newest, CVE-2025-59287, affects before 10.0.17763.7922. The versions for every exploited flaw are listed on this page.
Create a EdgeProtect account and track Windows Server 2019. 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.