CVE-2021-34491 Win32k Information Disclosure Vulnerability
An attacker can exploit a flaw in the Win32k component to disclose sensitive information on affected Windows systems.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-34491?
CVE-2021-34491 is a medium-severity vulnerability in Microsoft Windows 10, published on 14 Jul 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Win32k Information Disclosure Vulnerability
Which versions are affected by CVE-2021-34491?
It affects 6 products.
Products include Microsoft Windows 10, Microsoft Windows 8.1, Microsoft Windows Rt 8.1, Microsoft Windows Server 2012, Microsoft Windows Server 2016, Microsoft Windows Server 2019.
How do I fix CVE-2021-34491?
No fix has been published for CVE-2021-34491 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-34491 being exploited?
There is no known exploitation of CVE-2021-34491 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Windows 10
- CVE-2015-2426 Microsoft Windows Adobe Type Manager Library Remote Code Execution
- CVE-2015-1769 Microsoft Windows Mount Manager Privilege Escalation
- CVE-2020-1467 Windows Hard Link Elevation of Privilege Vulnerability
- CVE-2021-26424 Windows TCP/IP Remote Code Execution Vulnerability
- CVE-2021-28476 Windows Hyper-V Remote Code Execution Vulnerability
Sources
Also known as GHSA-wqmc-2xfh-g827.