CVE-2021-34498: (Pwn2Own) Microsoft Windows win32kfull Bitmap Use-After-Free Privilege Escalation Vulnerability
First published: Tue Jul 13 2021(Updated: )
Windows GDI Elevation of Privilege Vulnerability
Credit: secure@microsoft.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Microsoft Windows 7 | ||
| Microsoft Windows Server | =20H2 | |
| Microsoft Windows Server 2012 R2 | ||
| Microsoft Windows Server | =2004 | |
| Microsoft Windows Server 2012 R2 | ||
| Microsoft Windows Server 2008 R2 | ||
| Microsoft Windows Server 2008 R2 | ||
| Microsoft Windows 7 | ||
| Microsoft Windows RT | ||
| Microsoft Windows Server | ||
| Microsoft Windows Server | ||
| Microsoft Windows Server | ||
| Microsoft Windows Server | ||
| Microsoft Windows Server | ||
| Microsoft Windows Server | ||
| Microsoft Windows 8.1 | ||
| Microsoft Windows 8.1 | ||
| 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 7 | =sp1 | |
| Microsoft Windows | ||
| Microsoft Windows RT | ||
| Microsoft Windows Server | =sp2 | |
| Microsoft Windows Server | =r2-sp1 | |
| Microsoft Windows Server | ||
| Microsoft Windows Server | =r2 | |
| Microsoft Windows Server 2016 | ||
| Microsoft Windows Server 2016 | =20h2 | |
| Microsoft Windows Server 2016 | =2004 | |
| Microsoft Windows Server 2019 | ||
| Microsoft Windows Operating System |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2021-34498?
CVE-2021-34498 is rated as important, indicating a potential elevation of privileges for local attackers.
How do I fix CVE-2021-34498?
To fix CVE-2021-34498, ensure that your system is updated with the latest security patches provided by Microsoft.
Which versions of Windows are affected by CVE-2021-34498?
CVE-2021-34498 affects multiple Windows versions including Windows 7, Windows 10 (various builds), and Windows Server editions.
Can CVE-2021-34498 be exploited remotely?
No, CVE-2021-34498 requires local access to exploit, making it a local elevation of privilege vulnerability.
What impact does CVE-2021-34498 have on a system?
Exploitation of CVE-2021-34498 could allow an attacker to gain elevated privileges on an affected system.
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