CVE-2026-58540
HighCVSS 7.8Exploitation Probability (EPSS)
Low risk20th percentile - higher than 20% of all known CVEs
Summary
Vulnerability in Windows Installer due to improper authorization. Allows an authorized attacker to elevate privileges locally.
Risk Assessment
An authorized user can gain higher privileges on the system, potentially leading to full compromise of the Windows system.
Recommendation
Apply the security update released by Microsoft for Windows Installer.
Other vulnerabilities in Windows Installer
See all- CVE-2026-96308High
Use-after-free vulnerability in Windows Installer allows an authorized attacker to elevate privileges locally.
- CVE-2026-96307High
Use-after-free vulnerability in Windows Installer allows an authorized attacker to elevate privileges locally.
- CVE-2026-96305High
Use-after-free vulnerability in Windows Installer allows an authorized attacker to elevate privileges locally.
- CVE-2026-96302High
Use after free in Windows Installer allows an authorized attacker to elevate privileges locally.
- CVE-2026-88124High
Use after free in Windows Installer allows an authorized attacker to elevate privileges locally.
- 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.
- CVE-2024-38014HighActively exploited
Elevation of privilege vulnerability in Windows Installer. An attacker could exploit it to gain elevated privileges.
- CVE-2020-0683HighActively exploited
An elevation of privilege vulnerability exists in the Windows Installer when MSI packages process symbolic links, known as 'Windows Installer Elevation of Privilege Vulnerability'.
- CVE-2026-77894High
A race condition in Windows Installer due to improper synchronization of shared resources allows an authorized attacker to elevate privileges locally.
- CVE-2026-72929High
Improper validation of integrity check value in Windows Installer allows an authorized attacker to elevate privileges locally.
Original NVD description (English source)
Improper authorization in Windows Installer allows an authorized attacker to elevate privileges locally.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS