CVE-2025-54895
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 SPNEGO Extended Negotiation 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_1507 | to 10.0.10240.21128 (exc) |
| microsoft | windows_10_1607 | to 10.0.14393.8422 (exc) |
| microsoft | windows_10_1607 | to 10.0.14393.8422 (exc) |
| microsoft | windows_10_1809 | to 10.0.17763.7792 (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_2008 | r2 |
| 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-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-367 | The product checks the state of a resource before using that resource, but the resource's state can change between the check and the use in a way that invalidates the results of the check. |
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 SPNEGO Extended Negotiation. It allows an authorized attacker to locally elevate their privileges on the affected system.
How can this vulnerability impact me? :
The vulnerability can allow an authorized attacker to elevate their privileges locally, potentially gaining higher-level access and control over the affected Windows system, which could lead to unauthorized actions or compromise of system integrity.
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