CVE-2026-25174
Out-of-Bounds Read in Windows Extensible File Allocation Elevates Privileges
Publication date: 2026-03-10
Last updated on: 2026-03-13
Assigner: Microsoft Corporation
Description
Description
CVSS Scores
EPSS Scores
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| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| microsoft | windows_server_2012 | r2 |
| microsoft | windows_server_2012 | * |
| microsoft | windows_10_1809 | to 10.0.17763.8511 (exc) |
| microsoft | windows_10_1809 | to 10.0.17763.8511 (exc) |
| microsoft | windows_10_21h2 | to 10.0.19044.7058 (exc) |
| microsoft | windows_10_21h2 | to 10.0.19044.7058 (exc) |
| microsoft | windows_10_21h2 | to 10.0.19044.7058 (exc) |
| microsoft | windows_10_22h2 | to 10.0.19045.7058 (exc) |
| microsoft | windows_10_22h2 | to 10.0.19045.7058 (exc) |
| microsoft | windows_10_22h2 | to 10.0.19045.7058 (exc) |
| microsoft | windows_11_23h2 | to 10.0.22631.6783 (exc) |
| microsoft | windows_11_23h2 | to 10.0.22631.6783 (exc) |
| microsoft | windows_11_24h2 | to 10.0.26100.7979 (exc) |
| microsoft | windows_11_24h2 | to 10.0.26100.7979 (exc) |
| microsoft | windows_11_25h2 | to 10.0.26200.7979 (exc) |
| microsoft | windows_11_25h2 | to 10.0.26200.7979 (exc) |
| microsoft | windows_11_26h1 | to 10.0.28000.1719 (exc) |
| microsoft | windows_11_26h1 | to 10.0.28000.1719 (exc) |
| microsoft | windows_server_2016 | to 10.0.14393.8957 (exc) |
| microsoft | windows_server_2019 | to 10.0.17763.8511 (exc) |
| microsoft | windows_server_2022 | to 10.0.20348.4830 (exc) |
| microsoft | windows_server_2022_23h2 | to 10.0.25398.2207 (exc) |
| microsoft | windows_10_1607 | to 10.0.14393.8957 (exc) |
| microsoft | windows_10_1607 | to 10.0.14393.8957 (exc) |
| microsoft | windows_server_2025 | to 10.0.26100.32463 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-125 | The product reads data past the end, or before the beginning, of the intended buffer. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is an out-of-bounds read in the Windows Extensible File Allocation component. It allows an authorized attacker to read memory outside the intended bounds, which can lead to an elevation of privileges on the local system.
How can this vulnerability impact me? :
The impact of this vulnerability is that an attacker who already has some level of access to the system can exploit it to elevate their privileges. This means they could gain higher-level permissions, potentially allowing them to execute unauthorized actions, access sensitive data, or compromise system integrity.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know
What immediate steps should I take to mitigate this vulnerability?
This vulnerability allows an authorized attacker to elevate privileges locally via an out-of-bounds read in Windows Extensible File Allocation.
To mitigate this vulnerability, it is recommended to apply the security updates provided by Microsoft as soon as they become available.