CVE-2021-34462: (Pwn2Own) Microsoft Windows AppX Deployment Service Race Condition Privilege Escalation Vulnerability
First published: Tue Jul 13 2021(Updated: )
Windows AppX Deployment Extensions Elevation of Privilege Vulnerability
Credit: secure@microsoft.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Microsoft Windows Server | =20H2 | |
| Microsoft Windows Server | =2004 | |
| Microsoft Windows Server 2016 | ||
| Microsoft Windows Server 2016 | ||
| Microsoft Windows Server 2019 | ||
| Microsoft Windows Server 2019 | ||
| Windows 10 | =20H2 | |
| Windows 10 | =20H2 | |
| Windows 10 | =20H2 | |
| Windows 10 | =1809 | |
| Windows 10 | =1809 | |
| Windows 10 | =1809 | |
| Windows 10 | =1607 | |
| Windows 10 | =1607 | |
| Windows 10 | =21H1 | |
| Windows 10 | =21H1 | |
| Windows 10 | =21H1 | |
| Windows 10 | =1909 | |
| Windows 10 | =1909 | |
| Windows 10 | =1909 | |
| Windows 10 | ||
| Windows 10 | ||
| Windows 10 | =2004 | |
| Windows 10 | =2004 | |
| Windows 10 | =2004 | |
| Windows 10 | ||
| Windows 10 | =20h2 | |
| Windows 10 | =21h1 | |
| Windows 10 | =1607 | |
| Windows 10 | =1809 | |
| Windows 10 | =1909 | |
| Windows 10 | =2004 | |
| Microsoft Windows Server 2016 | ||
| Microsoft Windows Server 2016 | =20h2 | |
| Microsoft Windows Server 2016 | =2004 | |
| Microsoft Windows Server 2019 | ||
| Microsoft Windows Operating System |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
Frequently Asked Questions
What is the severity of CVE-2021-34462?
CVE-2021-34462 is rated as important in severity and allows local attackers to escalate privileges.
How do I fix CVE-2021-34462?
To fix CVE-2021-34462, apply the latest security updates released by Microsoft for your affected Windows version.
Which versions of Windows are affected by CVE-2021-34462?
CVE-2021-34462 affects multiple versions of Windows 10 and Windows Server, particularly those as recent as 20H2.
Can CVE-2021-34462 be exploited remotely?
No, CVE-2021-34462 requires local access to the system for exploitation.
What type of vulnerability is CVE-2021-34462?
CVE-2021-34462 is categorized as an elevation of privilege vulnerability.
- agent/type
- agent/first-publish-date
- collector/msrc-cve
- source/Microsoft
- agent/software-canonical-lookup
- agent/title
- agent/remedy
- agent/references
- agent/weakness
- agent/severity
- agent/description
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/trending
- agent/source
- agent/software-canonical-lookup-request
- agent/author
- agent/event
- collector/nvd-api
- source/NVD
- collector/nvd-index
- agent/softwarecombine
- agent/tags
- collector/zdi-advisory
- source/ZDI
- alias/ZDI-21-823
- alias/ZDI-CAN-13600
- alias/CVE-2021-34462
- vendor/microsoft
- canonical/microsoft windows server
- version/microsoft windows server/20h2
- version/microsoft windows server/2004
- canonical/microsoft windows server 2016
- canonical/microsoft windows server 2019
- canonical/windows 10
- version/windows 10/20h2
- version/windows 10/1809
- version/windows 10/1607
- version/windows 10/21h1
- version/windows 10/1909
- version/windows 10/2004
- version/microsoft windows server 2016/20h2
- version/microsoft windows server 2016/2004
- canonical/microsoft windows operating system