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CVE-2021-34481

Windows Print Spooler Remote Code Execution Vulnerability

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 10.0.10240.19022, 10.0.14393.4583, 10.0.17763.2114, 10.0.18363.1734, 10.0.19041.1165, and 6 more
1 proof of concept on GitHub

Summary

A remote code execution vulnerability exists when the Windows Print Spooler service improperly performs privileged file operations. An attacker who successfully exploited this vulnerability could run arbitrary code with SYSTEM privileges. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. UPDATE August 10, 2021: Microsoft has completed the investigation and has released security updates to address this vulnerability. Please see the Security Updates table for the applicable update for your system. We recommend that you install these updates immediately. This security update changes the Point and Print default behavior; please see KB5005652.

Timeline

  1. CVE published
  2. Record last updated
  3. EPSS reached 10%

    FIRST estimates at least a 10% chance of exploitation in the next 30 days

Affected versions

  • Microsoft Windows 10 Version 1507

    From 10.0.10240.0 · fixed in 10.0.10240.19022

  • Microsoft Windows 10 Version 1607

    From 10.0.14393.0 · fixed in 10.0.14393.4583

  • Microsoft Windows 10 Version 1809

    From 10.0.17763.0 · fixed in 10.0.17763.2114

  • Microsoft Windows 10 Version 1809

    From 10.0.0 · fixed in 10.0.17763.2114

  • Microsoft Windows 10 Version 1909

    From 10.0.0 · fixed in 10.0.18363.1734

  • Microsoft Windows 10 Version 2004

    From 10.0.0 · fixed in 10.0.19041.1165

  • Microsoft Windows 10 Version 20H2

    From 10.0.0 · fixed in 10.0.19042.1165

  • Microsoft Windows 10 Version 21H1

    From 10.0.0 · fixed in 10.0.19043.1165

  • Microsoft Windows 7

    From 6.1.0 · fixed in 6.1.7601.25685

  • Microsoft Windows 7 Service Pack 1

    From 6.1.0 · fixed in 6.1.7601.25685

  • Microsoft Windows 8.1

    From 6.3.0 · fixed in 6.3.9600.20094

  • Microsoft Windows Server 2008 R2 Service Pack 1

    From 6.1.7601.0 · fixed in 6.1.7601.25685

  • Microsoft Windows Server 2008 R2 Service Pack 1 (Server Core installation)

    From 6.1.7601.0 · fixed in 6.1.7601.25685

  • Microsoft Windows Server 2008 Service Pack 2

    From 6.0.6003.0 · fixed in 6.0.6003.21192

  • Microsoft Windows Server 2008 Service Pack 2 (Server Core installation)

    From 6.0.6003.0 · fixed in 6.0.6003.21192

  • Microsoft Windows Server 2012

    From 6.2.9200.0 · fixed in 6.2.9200.23435

  • Microsoft Windows Server 2012 (Server Core installation)

    From 6.2.9200.0 · fixed in 6.2.9200.23435

  • Microsoft Windows Server 2012 R2

    From 6.3.9600.0 · fixed in 6.3.9600.20094

  • Microsoft Windows Server 2012 R2 (Server Core installation)

    From 6.3.9600.0 · fixed in 6.3.9600.20094

  • Microsoft Windows Server 2016

    From 10.0.14393.0 · fixed in 10.0.14393.4583

  • Microsoft Windows Server 2016 (Server Core installation)

    From 10.0.14393.0 · fixed in 10.0.14393.4583

  • Microsoft Windows Server 2019

    From 10.0.17763.0 · fixed in 10.0.17763.2114

  • Microsoft Windows Server 2019 (Server Core installation)

    From 10.0.17763.0 · fixed in 10.0.17763.2114

  • Microsoft Windows Server version 2004

    From 10.0.0 · fixed in 10.0.19041.1165

  • Microsoft Windows Server version 20H2

    From 10.0.0 · fixed in 10.0.19042.1165

References 2

msrc.microsoft.com

GitHub · vpn28/CVE-2021-34481