CVE-2025-54091
Unknown
Unknown - Not Provided
BaseFortify
Publication date: 2025-09-09
Last updated on: 2025-10-02
Assigner: Microsoft Corporation
Description
Description
Integer overflow or wraparound in Windows Hyper-V allows an authorized 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 10.0.10240.21128 (exc) |
| microsoft | windows_10_1607 | to 10.0.14393.8422 (exc) |
| microsoft | windows_10_1809 | to 10.0.17763.7792 (exc) |
| microsoft | windows_10_21h2 | to 10.0.19044.6332 (exc) |
| microsoft | windows_10_22h2 | to 10.0.19045.6332 (exc) |
| microsoft | windows_11_22h2 | to 10.0.22621.5909 (exc) |
| microsoft | windows_11_23h2 | to 10.0.22631.5909 (exc) |
| microsoft | windows_11_24h2 | to 10.0.26100.6508 (exc) |
| microsoft | windows_server_2012 | * |
| microsoft | windows_server_2012 | r2 |
| microsoft | windows_server_2016 | to 10.0.14393.8422 (exc) |
| microsoft | windows_server_2019 | to 10.0.17763.7792 (exc) |
| microsoft | windows_server_2022 | to 10.0.20348.4106 (exc) |
| microsoft | windows_server_2022_23h2 | to 10.0.25398.1849 (exc) |
| microsoft | windows_server_2025 | to 10.0.26100.6508 (exc) |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-122 | A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). |
| 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. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is an integer overflow or wraparound issue in Windows Hyper-V that allows an authorized attacker to elevate their privileges locally on the affected system.
How can this vulnerability impact me? :
An attacker exploiting this vulnerability could gain higher privileges on the system, potentially leading to full control over the affected Windows Hyper-V environment, which could compromise confidentiality, integrity, and availability of data and services.
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