CVE-2025-49689
Unknown
Unknown - Not Provided
BaseFortify
Publication date: 2025-07-08
Last updated on: 2025-07-15
Assigner: Microsoft Corporation
Description
Description
Integer overflow or wraparound in Virtual Hard Disk (VHDX) allows an unauthorized attacker to elevate privileges locally.
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| microsoft | windows_10_1507 | to 10.0.10240.21073 (exc) |
| microsoft | windows_10_1507 | to 10.0.10240.21073 (exc) |
| microsoft | windows_10_1607 | to 10.0.14393.8246 (exc) |
| microsoft | windows_10_1607 | to 10.0.14393.8246 (exc) |
| microsoft | windows_10_1809 | to 10.0.17763.7558 (exc) |
| microsoft | windows_10_1809 | to 10.0.17763.7558 (exc) |
| microsoft | windows_10_21h2 | to 10.0.19044.6093 (exc) |
| microsoft | windows_10_22h2 | to 10.0.19045.6093 (exc) |
| microsoft | windows_11_22h2 | to 10.0.22621.5624 (exc) |
| microsoft | windows_11_23h2 | to 10.0.22631.5624 (exc) |
| microsoft | windows_11_24h2 | to 10.0.26100.4652 (exc) |
| microsoft | windows_server_2008 | * |
| microsoft | windows_server_2008 | * |
| microsoft | windows_server_2008 | r2 |
| microsoft | windows_server_2012 | * |
| microsoft | windows_server_2012 | r2 |
| microsoft | windows_server_2016 | to 10.0.14393.8246 (exc) |
| microsoft | windows_server_2019 | to 10.0.17763.7558 (exc) |
| microsoft | windows_server_2022 | to 10.0.20348.3932 (exc) |
| microsoft | windows_server_2022_23h2 | to 10.0.25398.1732 (exc) |
| microsoft | windows_server_2025 | to 10.0.26100.4652 (exc) |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-125 | The product reads data past the end, or before the beginning, of the intended buffer. |
| CWE-190 | The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number. |
| CWE-822 | The product obtains a value from an untrusted source, converts this value to a pointer, and dereferences the resulting pointer. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is an integer overflow or wraparound issue in the Virtual Hard Disk (VHDX) format that allows an unauthorized attacker to locally elevate their privileges on the affected system.
How can this vulnerability impact me? :
An attacker exploiting this vulnerability can gain higher privileges on the local system, potentially allowing them to execute unauthorized actions, access sensitive data, or compromise system integrity.
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