CVE-2022-21876: Microsoft Windows DirectComposition Out-Of-Bounds Read Information Disclosure Vulnerability
First published: Tue Jan 11 2022(Updated: )
This vulnerability allows local attackers to disclose sensitive information on affected installations of Microsoft Windows. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within DirectComposition. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of the kernel.
Credit: secure@microsoft.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Microsoft Windows Server | =20H2 | |
| Microsoft Windows Server | ||
| Microsoft Windows Server | ||
| Microsoft Windows Server 2016 | ||
| Microsoft Windows Server 2016 | ||
| Microsoft Windows Server 2019 | ||
| Microsoft Windows Server 2019 | ||
| Windows 11 | =21H2 | |
| Windows 11 | =21H2 | |
| Microsoft Windows Server 2022 | ||
| Microsoft Windows Server 2022 | ||
| 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 | =21H2 | |
| Windows 10 | =21H2 | |
| Windows 10 | =21H2 | |
| Windows 10 | =1909 | |
| Windows 10 | =1909 | |
| Windows 10 | =1909 | |
| Windows 10 | ||
| Windows 10 | ||
| Windows 10 | ||
| Windows 10 | ||
| Windows 10 | =20h2 | |
| Windows 10 | =20h2 | |
| Windows 10 | =20h2 | |
| Windows 10 | =21h1 | |
| Windows 10 | =21h1 | |
| Windows 10 | =21h1 | |
| Windows 10 | =21h2 | |
| Windows 10 | =21h2 | |
| Windows 10 | =21h2 | |
| Windows 10 | =1607 | |
| Windows 10 | =1607 | |
| Windows 10 | =1809 | |
| Windows 10 | =1809 | |
| Windows 10 | =1809 | |
| Windows 10 | =1909 | |
| Windows 10 | =1909 | |
| Windows 10 | =1909 | |
| Windows 11 | ||
| Windows 11 | ||
| Microsoft Windows Server | =20h2 | |
| Microsoft Windows Server | =2022 | |
| Microsoft Windows Server | ||
| Microsoft Windows Server 2016 | ||
| Microsoft Windows Server 2019 | ||
| Microsoft Windows Operating System |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2022-21876?
CVE-2022-21876 has a severity rating of important as it may allow local attackers to disclose sensitive information.
How do I fix CVE-2022-21876?
To mitigate CVE-2022-21876, apply the latest patches provided by Microsoft for affected Windows versions.
Which versions of Windows are affected by CVE-2022-21876?
CVE-2022-21876 affects various versions of Microsoft Windows, including Windows 10, Windows 11, and Windows Server editions.
What type of attack can exploit CVE-2022-21876?
CVE-2022-21876 can be exploited by local attackers with low-privileged code execution capabilities.
What kind of sensitive information can be disclosed due to CVE-2022-21876?
CVE-2022-21876 can potentially allow the disclosure of sensitive information stored on affected Windows installations.
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