HIGHCVSS7.8

Actively Exploited

KB5037763: Windows Server 2019 / 2022 / 2016 Security Update (May 2024)

Microsoft DWM Core Library contains a privilege escalation vulnerability that allows an attacker to gain SYSTEM privileges.

Published May 14, 2024 · Updated Jun 10, 2026

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Why patchRisk explained in plain English

Worst-case scenarioIf unpatched

A local attacker, with a low-privilege account, can achieve full data confidentiality loss, arbitrary modification of data, complete denial of service or system unavailability. CISA has confirmed use of this vulnerability in known ransomware campaigns — treat as high priority for remediation. Federal agencies are required to remediate by 2024-06-04 under CISA BOD 22-01.

How the attack worksNo clicks needed

This is a Heap-based Buffer Overflow (CWE-122) vulnerability in Microsoft DWM Core Library. Windows DWM Core Library Elevation of Privilege Vulnerability Exploitation requires local access, low attack complexity, a low-privilege authenticated account, and no user interaction required.

Am I affected?Quick check

Probably yes if any of these apply:

●IT Security

●Running windows 10 1507: v < 10.0.10240.20651; windows 10 1607: v < 10.0.14393.6981; windows 10 1809: v < 10.0.17763.5820; windows 10 21h2: v < 10.0.19044.4412; windows 10 22h2: v < 10.0.19045.4412; windows 11 21h2: v < 10.0.22000.2960; windows 11 22h2: v < 10.0.22621.3593; windows 11 23h2: v < 10.0.22631.3593; windows server 2016: v < 10.0.14393.6981; windows server 2019: v < 10.0.17763.5820; windows server 2022: v < 10.0.20348.2458

Affected OS versions

Windows Server 2019Windows Server 2022Windows Server 2016

Fixed inKB5037763, KB5037765, KB5037768, KB5037770, KB5037771, KB5037782, KB5037788, KB5037848 (applies to 25 product versions) — build 10.0.10240.20651, 10.0.14393.6981+

Real-world incidentsWhat we've seen

CISA confirms this CVE has been used in known ransomware campaigns. Added to the KEV catalog on 2024-05-14; federal agencies required to remediate by 2024-06-04.

How to patch

Manual download

For air-gapped servers or out-of-band deployment. Microsoft Update Catalog returns every OS-version variant of this update.

↗ Microsoft Update CatalogKB5037763

Manual remediation steps

Apply the Microsoft Security Update

Microsoft has released an official security update that fixes this vulnerability.

Required KB Updates

KB5037763 — https://support.microsoft.com/help/5037763

KB5037765 — https://support.microsoft.com/help/5037765

KB5037768 — https://support.microsoft.com/help/5037768

KB5037770 — https://support.microsoft.com/help/5037770

KB5037771 — https://support.microsoft.com/help/5037771

KB5037782 — https://support.microsoft.com/help/5037782

KB5037788 — https://support.microsoft.com/help/5037788

KB5037848 — https://support.microsoft.com/help/5037848

Supersedes: KB5036892, KB5036893, KB5036894, KB5036896, KB5036899, KB5036909, KB5036925

Affected Products

Windows 10 Version 1607 for 32-bit Systems

Windows 10 Version 1607 for x64-based Systems

Windows 10 Version 1809 for 32-bit Systems

Windows 10 Version 1809 for ARM64-based Systems

Windows 10 Version 1809 for x64-based Systems

Windows 10 Version 21H2 for 32-bit Systems

Windows 10 Version 21H2 for ARM64-based Systems

Windows 10 Version 21H2 for x64-based Systems

Windows 10 Version 22H2 for 32-bit Systems

Windows 10 Version 22H2 for ARM64-based Systems

Windows 10 Version 22H2 for x64-based Systems

Windows 10 for 32-bit Systems

Windows 10 for x64-based Systems

Windows 11 Version 22H2 for ARM64-based Systems

Windows 11 Version 22H2 for x64-based Systems

Windows 11 Version 23H2 for ARM64-based Systems

Windows 11 Version 23H2 for x64-based Systems

Windows 11 version 21H2 for ARM64-based Systems

Windows 11 version 21H2 for x64-based Systems

Windows Server 2016

(…5 more product versions)

Fixed Build Numbers

10.0.10240.20651

10.0.14393.6981

10.0.17763.5820

10.0.19044.4412

10.0.19045.4412

10.0.20348.2458

10.0.20348.2461

10.0.22000.2960

10.0.22621.3593

10.0.22631.3593

Installation Methods

Windows Update (recommended)

Settings → Windows Update → Check for updates

The security update is offered if your system is in scope

Restart when prompted — a reboot IS required to complete the install

Microsoft Update Catalog (manual download)

Open https://catalog.update.microsoft.com

Search for KB5037763

Download the package matching your OS architecture and Windows build

Run the .msu installer with administrator privileges

Restart when prompted

WSUS / SCCM / Intune

Approve KB5037763 for the affected products in your update management console.

Microsoft Download Center Links

https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5037763

https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5037765

https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5037768

https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5037770

https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5037771

(…3 more)

Verification

Confirm the update is installed:

Get-HotFix | Where-Object { $_.HotFixID -in @('KB5037763','KB5037765','KB5037768','KB5037770','KB5037771','KB5037782','KB5037788','KB5037848') }

References

Microsoft Security Response Center: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-30051

KB article: https://support.microsoft.com/help/5037763

KB article: https://support.microsoft.com/help/5037765

KB article: https://support.microsoft.com/help/5037768

NVD entry: https://nvd.nist.gov/vuln/detail/CVE-2024-30051

CISA KEV: https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-30051

Discovery Credit

Vlad Stolyarov and Benoit Sevens of Google Threat Analysis Group Bryce Abdo and Adam Brunner of Google Mandiant, Quan Jin with DBAPPSecurity WeBin Lab Guoxian Zhong with DBAPPSecurity WeBin Lab, Mert Degirmenci and Boris Larin with Kaspersky

PowerShell automationComing soon

No tested PowerShell script for this entry yet. We’re prioritising automation based on user demand.

References

↗ CVE-2024-30051 ↗ MSRC Advisory ↗ KBKB5037763