CVE-2022-21882 Win32k Elevation of Privilege Vulnerability. This CVE ID is unique from CVE-2022-21887.

CVE-2022-21882 Win32k Elevation of Privilege Vulnerability. This CVE ID is unique from CVE-2022-21887.

This vulnerability is due to improper handling of privileged instructions (i.e., instructions that cause the processor to perform actions privileged against software with which the processor is running) when operating in Windows 32-bit (but not in 64-bit) mode. An attacker can exploit this vulnerability by enticing a user to open a specially crafted website or malicious file in Internet Explorer. Successful exploitation results in information disclosure and information execution, allowing the attacker to take control of an affected system. Microsoft released security bulletin MS16-037 to address this vulnerability. End users can protect themselves from exploitation of this vulnerability by ensuring that they are running Windows 64-bit (x64) with IE11 or later installed on their systems. CVE-2017-11776: Windows Elevation of Privilege Vulnerability. This CVE ID is unique in that it was previously assigned to another vulnerability that was resolved in a different way. This means that the mitigation for one vulnerability will also mitigate the effects of another vulnerability. This is a common occurrence in the software development industry. This vulnerability is due to improper handling of privileged instructions (i.e., instructions that cause the processor to perform actions privileged against software with which the processor is running) when operating in Windows 32-bit (but not in 64-bit) mode

Windows Elevation of Privilege Vulnerability

Mitigation for this vulnerability is to ensure that systems are running 64-bit and have the latest version of Microsoft Internet Explorer on them.

Summary

This vulnerability is due to improper handling of privileged instructions (i.e., instructions that cause the processor to perform actions privileged against software with which the processor is running) when operating in Windows 32-bit (but not in 64-bit) mode. An attacker can exploit this vulnerability by enticing a user to open a specially crafted website or malicious file in Internet Explorer. Successful exploitation results in information disclosure and information execution, allowing the attacker to take control of an affected system. Microsoft released security bulletin MS16-037 to address this vulnerability. End users can protect themselves from exploitation of this vulnerability by ensuring that they are running Windows 64-bit (x64) with IE11 or later installed on their systems.
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What is an elevation of privilege vulnerability?

Elevation of privilege vulnerabilities are those that occur when an application creates a new process with elevated privileges, then has the ability to isolate or stop that process. The vulnerability can be exploited by an attacker if the user is tricked into opening a specially crafted link or file.
It is critical that you update your systems in order to protect against this vulnerability.

References

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