CVE-2025-49686
Unknown
Unknown - Not Provided
BaseFortify
Publication date: 2025-07-08
Last updated on: 2025-07-15
Assigner: Microsoft Corporation
Description
Description
Null pointer dereference in Windows TCP/IP 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 10.0.10240.21073 (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-476 | The product dereferences a pointer that it expects to be valid but is NULL. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is a null pointer dereference in the Windows TCP/IP stack that allows an authorized local attacker to elevate their privileges on the affected system.
How can this vulnerability impact me? :
An attacker who already has some level of access to the system could exploit this vulnerability to gain higher privileges, potentially allowing them to execute arbitrary code, access sensitive information, or disrupt system operations.
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