CVE-2025-27727: Windows Installer Elevation of Privilege Vulnerability
First published: Tue Apr 08 2025(Updated: )
<p>Improper link resolution before file access ('link following') in Windows Installer allows an authorized attacker to elevate privileges locally.</p>
Credit: secure@microsoft.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Microsoft Windows Server | ||
| Microsoft Windows Server 2012 R2 | ||
| Windows 10 | =21H2 | |
| Windows 11 | =22H2 | |
| Microsoft Windows Server 2019 | ||
| Windows 10 | =1809 | |
| Microsoft Windows Server 2016 | ||
| Windows 11 | =22H2 | |
| Windows 10 | =21H2 | |
| Microsoft Windows Server 2008 R2 | ||
| Microsoft Windows Server | ||
| Windows 10 | =1607 | |
| Microsoft Windows Server | ||
| Windows 10 | =1607 | |
| Windows 10 | =22H2 | |
| Windows 11 | =23H2 | |
| Microsoft Windows Server 2022 | ||
| Microsoft Windows Server 2008 R2 | ||
| Windows 10 | =1809 | |
| Microsoft Windows Server 2019 | ||
| Microsoft Windows Server | ||
| Microsoft Windows Server 2022 | ||
| Windows 11 | =24H2 | |
| Microsoft Windows Server 2025 | ||
| Microsoft Windows Server 2012 R2 | ||
| Microsoft Windows Server | ||
| Microsoft Windows Server 2016 | ||
| Windows 10 | =21H2 | |
| Windows 11 | =24H2 | |
| Windows 10 | =22H2 | |
| Windows 11 | =23H2 | |
| Microsoft Windows Server 2025 | ||
| Windows 10 | =22H2 | |
| Microsoft Windows Server | ||
| Microsoft Windows Server 2022 23H2 | ||
| Windows 10 | ||
| Windows 10 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2025-27727?
CVE-2025-27727 has a critical severity rating due to its potential to allow local privilege escalation for authorized users.
How do I fix CVE-2025-27727?
To fix CVE-2025-27727, apply the Microsoft security updates recommended for your affected version of Windows.
Which versions of Windows are affected by CVE-2025-27727?
CVE-2025-27727 affects multiple versions of Windows, including Windows 10, Windows 11, and various Windows Server editions.
Can CVE-2025-27727 be exploited remotely?
No, CVE-2025-27727 requires local access to exploit, meaning an attacker must be physically present on the system.
What type of attacks does CVE-2025-27727 facilitate?
CVE-2025-27727 facilitates local privilege escalation attacks, allowing unauthorized actions at a higher privilege level on affected systems.
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- collector/msrc-cve
- source/Microsoft
- agent/title
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- agent/software-canonical-lookup
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- collector/msrc
- agent/softwarecombine
- collector/nvd-api
- source/NVD
- agent/author
- agent/weakness
- agent/last-modified-date
- agent/severity
- agent/source
- agent/description
- agent/tags
- agent/event
- vendor/microsoft
- canonical/microsoft windows server
- canonical/microsoft windows server 2012 r2
- canonical/windows 10
- version/windows 10/21h2
- canonical/windows 11
- version/windows 11/22h2
- canonical/microsoft windows server 2019
- version/windows 10/1809
- canonical/microsoft windows server 2016
- canonical/microsoft windows server 2008 r2
- version/windows 10/1607
- version/windows 10/22h2
- version/windows 11/23h2
- canonical/microsoft windows server 2022
- version/windows 11/24h2
- canonical/microsoft windows server 2025
- canonical/microsoft windows server 2022 23h2