Windows Installer Elevation of Privilege Vulnerability in Microsoft Products
CVE-2025-27727

7.8HIGH

Key Information:

Vendor
Microsoft
Status
Windows 10 Version 1809
Windows Server 2019
Windows Server 2019 (server Core Installation)
Windows Server 2022
Vendor
CVE Published:
8 April 2025

Summary

A vulnerability exists in Windows Installer that allows attackers to improperly resolve links prior to file access. This flaw can be exploited by authenticated users to elevate their privileges locally, potentially leading to unauthorized access to system resources and sensitive data. Organizations utilizing affected versions of Windows should implement mitigations and prioritize updates to safeguard against potential exploitation.

Affected Version(s)

Windows 10 Version 1507 32-bit Systems 10.0.10240.0 < 10.0.10240.20978

Windows 10 Version 1607 32-bit Systems 10.0.14393.0 < 10.0.14393.7970

Windows 10 Version 1809 32-bit Systems 10.0.17763.0 < 10.0.17763.7137

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE...
vendor-advisory

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.