Local information disclosure via Spaceport.sys over-read
Published Sep 8, 2026 · Updated Sep 9, 2026
Out-of-bounds read in Microsoft Windows Spaceport.sys allows local users with low privileges to disclose kernel memory. The driver reads beyond an intended buffer, but Microsoft has not disclosed the responsible code path, input structure, or boundary-check failure. Exploitation requires local low-privilege access and affects confidentiality only; no integrity loss or service interruption is reported.
Summary
What happened
Out-of-bounds read in Microsoft Windows Spaceport.sys allows local users with low privileges to disclose kernel memory. The driver reads beyond an intended buffer, but Microsoft has not disclosed the responsible code path, input structure, or boundary-check failure. Exploitation requires local low-privilege access and affects confidentiality only; no integrity loss or service interruption is reported.
The record
- CVE
- CVE-2026-69741
- Published
- Sep 8, 2026
- Updated
- Sep 9, 2026
- Vendor
- Microsoft
- Product
- Windows Server 2025 (Server Core installation)
- Classifications
- CWE-125, T1005
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Sep 8, 2026CVE publishedPublication date reported by the CVE source.
- Sep 9, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=10.0.26100.0 <10.0.26100.33438
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
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Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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