CVE-2018-8434 Information disclosure in Windows 10
An authenticated guest user can exploit improper input validation in Windows Hyper-V to disclose sensitive information from the host operating system.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2018-8434?
CVE-2018-8434 is a medium-severity vulnerability in Microsoft Windows 10, published on 13 Sep 2018. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
An information disclosure vulnerability exists when Windows Hyper-V on a host operating system fails to properly validate input from an authenticated user on a guest operating system, aka "Windows Hyper-V Information Disclosure Vulnerability." This affects Windows 7, Windows Server 2012 R2, Windows RT 8.1, Windows Server 2008, Windows Server 2012, Windows 8.1, Windows Server 2016, Windows Server 2008 R2, Windows 10, Windows 10 Servers.
Which versions are affected by CVE-2018-8434?
It affects 6 products.
Products include Microsoft Windows 10, Microsoft Windows 7, Microsoft Windows 8.1, Microsoft Windows Server 2008, Microsoft Windows Server 2012, Microsoft Windows Server 2016.
How do I fix CVE-2018-8434?
No fix has been published for CVE-2018-8434 yet. Limit exposure of the affected software until one is available.
Is CVE-2018-8434 being exploited?
There is no known exploitation of CVE-2018-8434 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-v4r5-4mf7-8q28.