CVE-2021-34493: Windows Partition Management Driver Elevation of Privilege Vulnerability

Published Jul 13, 2021
·
Updated

Windows Partition Management Driver Elevation of Privilege Vulnerability

Affected Software

35 affected componentsFixes available
Microsoft Windows 10
Microsoft Windows 10=20h2
Microsoft Windows 10=21h1
Microsoft Windows 10=1607
Microsoft Windows 10=1809
Microsoft Windows 10=1909
Microsoft Windows 10=2004
Microsoft Windows Server 2016
Microsoft Windows Server 2016=20h2
Microsoft Windows Server 2016=2004
Microsoft Windows Server 2019
Microsoft Windows 10=1607
10.0.14393.4530
Microsoft Windows Server 2016<10.0.14393.4530
10.0.14393.4530
Microsoft Windows 10=1607
10.0.14393.4530
Microsoft Windows 10<10.0.10240.19003
10.0.10240.19003
Microsoft Windows 10<10.0.10240.19003
10.0.10240.19003
Microsoft Windows 10=2004
10.0.19041.1110
Microsoft Windows 10=20H2
10.0.19042.1110
Microsoft Windows Server 2016<10.0.14393.4530
10.0.14393.4530
Microsoft Windows Server=2004
10.0.19041.1110
Microsoft Windows Server=20H2
10.0.19042.1110
Microsoft Windows 10=20H2
10.0.19042.1110
Microsoft Windows 10=2004
10.0.19041.1110
Microsoft Windows 10=21H1
10.0.19043.1110
Microsoft Windows 10=1909
10.0.18363.1679
Microsoft Windows 10=1909
10.0.18363.1679
Microsoft Windows 10=21H1
10.0.19043.1110
Microsoft Windows 10=1909
10.0.18363.1679
Microsoft Windows Server 2019<10.0.17763.2061
10.0.17763.2061
Microsoft Windows 10=21H1
10.0.19043.1110
Microsoft Windows 10=2004
10.0.19041.1110
Microsoft Windows Server 2019<10.0.17763.2061
10.0.17763.2061
Microsoft Windows 10=1809
10.0.17763.2061
Microsoft Windows 10=1809
10.0.17763.2061
Microsoft Windows 10=1809
10.0.17763.2061

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.14393.4530Patch KB5004238
  2. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.10240.19003Patch KB5004249
  3. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.19041.1110Patch KB5004237
  4. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.19042.1110Patch KB5004237
  5. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.18363.1679Patch KB5004245
  6. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.19043.1110Patch KB5004237
  7. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.17763.2061Patch KB5004244

Event History

Jul 13, 2021
CVE Published
via Microsoft·02:00 PM
Data Sourced
via Microsoft·02:00 PM
DescriptionSeverityWeakness
Data Sourced
via Microsoft·02:00 PM
Affected Software
Updated
via Microsoft·02:00 PM
Description
Jul 14, 2021
CVE Published
via MITRE·05:54 PM
Data Sourced
via MITRE·05:54 PM
DescriptionSeverity
Data Sourced
via NVD·06:15 PM
RemedyDescriptionSeverityWeaknessAffected Software

Frequently Asked Questions

1

What is the severity of CVE-2021-34493?

CVE-2021-34493 is rated as a high-severity vulnerability.

2

What impact does CVE-2021-34493 have?

CVE-2021-34493 can lead to an elevation of privilege on affected Windows systems.

3

How do I fix CVE-2021-34493?

The recommended fix for CVE-2021-34493 is to apply the latest security updates provided by Microsoft.

4

Which software versions are affected by CVE-2021-34493?

CVE-2021-34493 affects multiple versions of Microsoft Windows 10 and Windows Server 2016 and 2019.

5

Is CVE-2021-34493 publicly known?

Yes, CVE-2021-34493 is publicly disclosed and detailed in Microsoft security advisories.

Contact

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