CVE-2026-71345
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Out-of-bounds Write in Windows Spaceport.sys
Vulnerability report for CVE-2026-71345, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.
Publication date: 2026-09-08
Last updated on: 2026-09-09
Assigner: Microsoft Corporation
Description
Description
Out-of-bounds write in Windows Spaceport.sys allows an authorized attacker to execute code locally.
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| microsoft | windows_spaceport | *-*-*-*-*-*-* |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-787 | The product writes data past the end, or before the beginning, of the intended buffer. |
