CVE-2020-1078 Windows Installer Elevation of Privilege Vulnerability

High 7.8 Published Updated

An attacker with local access can exploit Windows Installer filesystem handling to execute arbitrary code with elevated privileges.

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-2020-1078?

CVE-2020-1078 is a high-severity vulnerability in Microsoft Windows 10, published on 21 May 2020. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

An elevation of privilege vulnerability exists in Windows Installer because of the way Windows Installer handles certain filesystem operations. To exploit the vulnerability, an attacker would require unprivileged execution on the victim system. After successfully exploiting the vulnerability, an attacker could run arbitrary code with elevated privileges. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. The security update addresses the vulnerability by correcting the way Windows Installer handles certain filesystem operations.

Which versions are affected by CVE-2020-1078?

It affects 8 products.

Products include Microsoft Windows 10, Microsoft Windows 7, Microsoft Windows 8.1, Microsoft Windows Rt 8.1, Microsoft Windows Server 2008, Microsoft Windows Server 2012 and 2 more.

How do I fix CVE-2020-1078?

No fix has been published for CVE-2020-1078 yet. Limit exposure of the affected software until one is available.

Is CVE-2020-1078 being exploited?

There is no known exploitation of CVE-2020-1078 in the wild and no public exploit code.

All Microsoft Windows 10 vulnerabilities

Sources

Also known as GHSA-xmmw-q4pv-3gc3.

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