Actively exploited in the wild
Microsoft Windows Installer Privilege Escalation Vulnerability
Microsoft - Windows · Listed in the CISA KEV since 2021-11-03. This indicates confirmed attacks in production environments.
Required action: Apply updates per vendor instructions.
CVE-2020-0683
HighCVSS 7.8KEVSummary
An elevation of privilege vulnerability exists in the Windows Installer when MSI packages process symbolic links, known as 'Windows Installer Elevation of Privilege Vulnerability'.
Risk Assessment
A local attacker could elevate their privileges on the system, potentially leading to full machine compromise.
Recommendation
Install the Microsoft security updates for Windows Installer.
Other vulnerabilities in Windows Installer
See all- CVE-2014-1814High
The vulnerability in Windows Installer allows local users to gain elevated privileges via a crafted application that invokes the repair feature for a different application.
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Elevation of privilege vulnerability in Windows Installer. An attacker could exploit it to gain elevated privileges.
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A race condition in Windows Installer due to improper synchronization of shared resources allows an authorized attacker to elevate privileges locally.
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Improper validation of integrity check value in Windows Installer allows an authorized attacker to elevate privileges locally.
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Heap-based buffer overflow in Windows Installer allows an authorized attacker to elevate privileges locally.
- CVE-2026-69441High
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Installer allows an authorized attacker to elevate privileges locally.
- CVE-2026-62694High
Use after free in Windows Installer allows an authorized attacker to elevate privileges locally.
- CVE-2026-70347High
Heap-based buffer overflow in Windows Installer allows an authorized attacker to elevate privileges locally.
- CVE-2026-70346High
Stack-based buffer overflow in Windows Installer allows an authorized attacker to elevate privileges locally.
- CVE-2026-70345High
Heap-based buffer overflow in Windows Installer allows an authorized attacker to elevate privileges locally.
Original NVD description (English source)
An elevation of privilege vulnerability exists in the Windows Installer when MSI packages process symbolic links, aka 'Windows Installer Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2020-0686.

