CVE-2018-8420 XML external entity in Windows 10
Remote code execution via MSXML parser processing user input in Windows operating systems.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2018-8420?
CVE-2018-8420 is a high-severity vulnerability in Microsoft Windows 10, published on 13 Sep 2018. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
A remote code execution vulnerability exists when the Microsoft XML Core Services MSXML parser processes user input, aka "MS XML Remote Code Execution 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.
Weakness: CWE-611
Which versions are affected by CVE-2018-8420?
It affects 4 products.
Products include Microsoft Windows 10, Microsoft Windows 7, Microsoft Windows 8.1, Microsoft Windows Server.
How do I fix CVE-2018-8420?
No fix has been published for CVE-2018-8420 yet. Limit exposure of the affected software until one is available.
Is CVE-2018-8420 being exploited?
There is no known exploitation of CVE-2018-8420 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
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-43x2-2pcr-g799.