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Windows 10 21H2 / 22H2 Windows 10 21H2 / 22H2 Security update
Patch Tuesday Zero-day

KB5060533

KB5060533: Cumulative update for Windows 10, versions 21H2 and 22H2, June 2025. Exploited shortcut-file flaw patched; Netlogon flaw rated critical

In short

The update fixes 34 vulnerabilities, including an exploited flaw in Internet Shortcut Files and a critical Netlogon flaw. It also carries an open issue that can delay delivery when organizations use quality-update deferral policies.

Does it affect you? Applies to: Windows 10, version 22H2, all editions, and version 21H2 Enterprise LTSC 2021 and IoT Enterprise LTSC 2021.

Builds
19044.5965 · 19045.5965
Security
34 fixed · 1 critical · 1 exploited
Restart
Required

What changes

Improvements 3 changes

Internal Windows OS

2 items
  • Windows 10, version 21H2, gets miscellaneous security improvements to internal Windows functions; no specific issues are documented.1
    Applies to Windows 10 Enterprise LTSC 2021 and Windows 10 IoT Enterprise LTSC 2021.
  • Windows 10, version 22H2, gets miscellaneous security improvements to internal Windows functions; no specific issues are documented.1
    Applies to Windows 10, version 22H2, all editions.

Servicing stack

  • The component that installs Windows updates gets quality improvements.2
    The cumulative update includes servicing stack update KB5059504.

Known issues

  1. Open Affects: Everyone

    Noto fonts

    CJK text can look blurry or unclear at 96 DPI (100% scaling) in Chromium-based browsers such as Microsoft Edge and Google Chrome. Increasing display scaling improves clarity.3

    How to apply the workaround Workaround

    Increase display scaling to improve text clarity. Users can also report Noto CJK font issues through the official Google Noto Fonts GitHub repository.3

  2. Resolved Affects: Everyone Resolved by KB5063159

    Surface Hub v1

    After installing this update on Windows 10, version 22H2, Surface Hub v1 devices might fail to start with a Secure Boot Violation error. Surface Hub 2S and Surface Hub 3 are not affected. This issue is fixed by KB5063159; Surface Hub v1 users should install that update instead.4

    Resolution Fixed in KB5063159

    Install KB5063159 (or a later cumulative update) on affected devices. No manual workaround is required after updating.

  3. Open Affects: Organizations and IT administrators

    Update delay with deferral policies

    Some devices in organizations using quality-update deferral policies might receive the June 2025 security update later than expected because its metadata timestamp is June 20, 2025, although it was released on June 10. This affects update timing, not quality or applicability.5

    How to apply the workaround Workaround

    Organizations using Windows Autopatch can create an expedite policy; otherwise, admins can adjust deployment rings or deferral settings to reduce the delay.5

    Step-by-step workaround instructions
    2 steps
    Show steps Hide steps
    Step-by-step procedure
    1. If the organization uses Windows Autopatch, create an expedite policy to bypass deferral settings and deliver the update immediately.
    2. Alternatively, adjust deployment rings or deferral configurations to reduce the delay window.

Technical details

Data sheet · Security · Downloads · Components Click to collapse or expand

Data sheet

Released
2025-06-10
Classification
Security Updates
Type
Cumulative update
Restart
Required
Replaces
KB5061979, KB5061768
Replaced by
KB5062554
VersionBuildChannel
21H2 19044.5965 General availability
22H2 19045.5965 General availability

Security

34 vulnerabilities fixed
1 exploited 1 critical 33 important
VulnerabilitySeverityCVSS
CVE-2025-33053 Exploited
Internet Shortcut Files Remote Code Execution Vulnerability
Important 8.8
Windows Netlogon Elevation of Privilege Vulnerability
Critical 8.1
Windows SMB Client Elevation of Privilege Vulnerability
Important 8.8

The table lists the 3 exploited, publicly disclosed or critical vulnerabilities. See all 34 vulnerabilities →

Updated components

503 files changed since the previous update for the same versions.

Top changed componentsFiles
Remote Desktop43
Graphics and display14
Kernel10
Hyper-V and virtualization7
File Explorer and shell6
Secure Boot6
Storage and file systems5
Security and sign-in4
Networking3
Emoji and input2
Search1

Sources

Updated
Cited passages from Microsoft's official notes (5)
  1. 1. This update contains miscellaneous security improvements to internal Windows OS functionality. No specific issues are documented for this release. support.microsoft.com
  2. 2. This update makes quality improvements to the servicing stack, which is the component that installs Windows updates. support.microsoft.com
  3. 3. There are reports of blurry or unclear CJK (Chinese, Japanese, Korean) text when displayed at 96 DPI (100% scaling) in Chromium-based browsers such as Microsoft Edge and Google Chrome. support.microsoft.com
  4. 4. This issue is fixed in update KB5063159. support.microsoft.com
  5. 5. To accelerate deployment of the June 2025 updates, admins can take one of the following actions: support.microsoft.com
Checked automatically: 7 of 8 checks passed, 5 quoted passages · compared with Microsoft's page on Oct 20, 2026
  • Quotes found in the official pages: passed
  • Numbers found in the sources: passed
  • Vulnerabilities from the dossier only: passed
  • Links to allowed domains only: passed
  • Every official change covered: passed
  • Readable plain text: passed
  • Changes confirmed by the file list: passed
  • Sources agree: not passed

A second AI read the text against the sources: correctness 5/5, clarity 4/5, completeness 5/5. How we work

Published by The Update Bureau. Written with AI from Microsoft's own documents, checked by rules and a second AI. How we work · Report a mistake