CVE-2020-16879 Projected Filesystem Information Disclosure Vulnerability

What is CVE-2020-16879?

CVE-2020-16879 is a medium-severity vulnerability in Microsoft Windows 10, published on 11 Sep 2020. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

<p>An information disclosure vulnerability exists when a Windows Projected Filesystem improperly handles file redirections. An attacker who successfully exploited this vulnerability could obtain information to further compromise the user's system</p> <p>To exploit this vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application that could exploit the vulnerability.</p> <p>The security update addresses the vulnerability by correcting how Windows Projected Filesystem handle file redirections.</p>

Which versions are affected by CVE-2020-16879?

It affects 3 products.

Products include Microsoft Windows 10, Microsoft Windows Server 2016, Microsoft Windows Server 2019.

How do I fix CVE-2020-16879?

No fix has been published for CVE-2020-16879 yet. Limit exposure of the affected software until one is available.

Is CVE-2020-16879 being exploited?

There is no known exploitation of CVE-2020-16879 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 Exploited High 8.8
• CVE-2015-1769 Microsoft Windows Mount Manager Privilege Escalation Exploited Medium 6.6
• CVE-2020-1467 Windows Hard Link Elevation of Privilege Vulnerability Critical 10.0
• CVE-2021-26424 Windows TCP/IP Remote Code Execution Vulnerability Critical 9.9
• CVE-2021-28476 Windows Hyper-V Remote Code Execution Vulnerability Critical 9.9

All Microsoft Windows 10 vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-32xq-w4g5-fj4x.