ACTIVELY EXPLOITED

CVE-2020-0683: Microsoft Windows Installer Privilege Escalation Vulnerability

Facts
VendorMicrosoft
ProductWindows
Actively exploitedYes
Added to CISA KEV3 Nov 2021
CISA federal deadline3 May 2022

Required action (CISA's text)

Apply updates per vendor instructions.

Description (NVD)

Microsoft Windows Installer contains a privilege escalation vulnerability when MSI packages process symbolic links, which allows attackers to bypass access restrictions to add or remove files.

SOURCES

Other Microsoft flaws

Data from NVD, CISA KEV, FIRST EPSS and vendor advisories. Updated 10 Nov 2026.