What is the severity of CVE-2021-1729?

CVE-2021-1729 has been classified as a critical elevation of privilege vulnerability.

How do I fix CVE-2021-1729?

To fix CVE-2021-1729, apply the latest security updates from Microsoft available for affected Windows versions.

Which versions of Windows are affected by CVE-2021-1729?

CVE-2021-1729 affects multiple versions of Windows 10 and Windows Server, specifically those listed in the Microsoft advisory.

Can CVE-2021-1729 be exploited remotely?

No, CVE-2021-1729 requires local access to the device for exploitation.

What type of attack does CVE-2021-1729 enable?

CVE-2021-1729 enables local attackers to elevate privileges and potentially cause a denial-of-service condition.

Vulnerability/
CVE-2021-1729

high

7.8

CWE

269

9/3/2021

11/3/2021

16/1/2024

3/8/2024

CVE-2021-1729: Microsoft Windows Setup Directory Junction Denial-of-Service Vulnerability

First published: Tue Mar 09 2021(Updated: )

Windows Update Stack Setup Elevation of Privilege Vulnerability

Credit: secure@microsoft.com secure@microsoft.com

Affected Software	Affected Version	How to fix
	=20H2	fix available externally
	=20H2	fix available externally
	=20H2	fix available externally
	=20H2	fix available externally
	=1803	fix available externally
	=1809	fix available externally
	=1809	fix available externally
	=1809	fix available externally
		fix available externally
		fix available externally
	=1909	fix available externally
	=1909	fix available externally
	=1909	fix available externally
	=1909	fix available externally
	=1803	fix available externally
	=1803	fix available externally
	=2004	fix available externally
	=2004	fix available externally
	=2004	fix available externally
	=2004	fix available externally
Microsoft Windows 10
Microsoft Windows 10	=20h2
Microsoft Windows 10	=1803
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	=1909
Microsoft Windows Server 2016	=2004
Microsoft Windows Server 2019
Microsoft Windows

Remedy

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-1729

Never miss a vulnerability like this again

Reference Links

Frequently Asked Questions

What is the severity of CVE-2021-1729?
CVE-2021-1729 has been classified as a critical elevation of privilege vulnerability.
How do I fix CVE-2021-1729?
To fix CVE-2021-1729, apply the latest security updates from Microsoft available for affected Windows versions.
Which versions of Windows are affected by CVE-2021-1729?
CVE-2021-1729 affects multiple versions of Windows 10 and Windows Server, specifically those listed in the Microsoft advisory.
Can CVE-2021-1729 be exploited remotely?
No, CVE-2021-1729 requires local access to the device for exploitation.
What type of attack does CVE-2021-1729 enable?
CVE-2021-1729 enables local attackers to elevate privileges and potentially cause a denial-of-service condition.

agent/type
agent/first-publish-date
collector/msrc-cve
source/Microsoft
agent/author
collector/zdi-advisory
source/ZDI
alias/ZDI-21-284
alias/ZDI-CAN-12093
alias/CVE-2021-1729
agent/software-canonical-lookup
agent/title
agent/remedy
agent/references
agent/weakness
agent/severity
agent/softwarecombine
agent/description
collector/nvd-api
source/NVD
agent/software-canonical-lookup-request
collector/nvd-index
collector/mitre-cve
source/MITRE
agent/last-modified-date
agent/event
agent/trending
agent/tags
agent/source
vendor/microsoft
canonical/microsoft windows
canonical/microsoft windows 10
version/microsoft windows 10/1803
version/microsoft windows 10/1809
version/microsoft windows 10/2004
version/microsoft windows 10/1909
canonical/microsoft windows server 2019
version/microsoft windows 10/20h2
canonical/microsoft windows server
version/microsoft windows server/20h2
version/microsoft windows server/1909
version/microsoft windows server/2004
canonical/microsoft windows server 2016
version/microsoft windows server 2016/20h2
version/microsoft windows server 2016/1909
version/microsoft windows server 2016/2004

Frequently Asked Questions

What is the severity of CVE-2021-1729?
CVE-2021-1729 has been classified as a critical elevation of privilege vulnerability.
How do I fix CVE-2021-1729?
To fix CVE-2021-1729, apply the latest security updates from Microsoft available for affected Windows versions.
Which versions of Windows are affected by CVE-2021-1729?
CVE-2021-1729 affects multiple versions of Windows 10 and Windows Server, specifically those listed in the Microsoft advisory.
Can CVE-2021-1729 be exploited remotely?
No, CVE-2021-1729 requires local access to the device for exploitation.
What type of attack does CVE-2021-1729 enable?
CVE-2021-1729 enables local attackers to elevate privileges and potentially cause a denial-of-service condition.

CVE-2021-1729: Microsoft Windows Setup Directory Junction Denial-of-Service Vulnerability

Remedy

Never miss a vulnerability like this again

Reference Links

Frequently Asked Questions

What is the severity of CVE-2021-1729?

How do I fix CVE-2021-1729?

Which versions of Windows are affected by CVE-2021-1729?

Can CVE-2021-1729 be exploited remotely?

What type of attack does CVE-2021-1729 enable?

Company

Resources

Contact

Frequently Asked Questions

What is the severity of CVE-2021-1729?

How do I fix CVE-2021-1729?

Which versions of Windows are affected by CVE-2021-1729?

Can CVE-2021-1729 be exploited remotely?

What type of attack does CVE-2021-1729 enable?