CVE-2026-72942: CWE-125: Out-of-bounds Read in Microsoft Windows 10 Version 1607
Description
CVE-2026-72942 is an out-of-bounds read vulnerability in the Windows Spaceport.sys driver affecting multiple builds of Microsoft Windows 10, including version 1607. This flaw allows an unauthorized attacker to disclose information over a network. The vulnerability has a medium severity rating with a CVSS score of 6.5. Microsoft has released an official fix for this issue.
CVSS v3.1
Score 6.5medium
Affected software
Microsoft
Windows 10 Version 1607
Microsoft
Windows 10 Version 1809
Microsoft
Windows 10 Version 21H2
Microsoft
Windows 10 Version 22H2
Microsoft
Windows 11 version 23H2
Microsoft
Windows 11 Version 23H2
Microsoft
Windows 11 Version 24H2
Microsoft
Windows 11 Version 25H2
Microsoft
Windows 11 version 26H1
Microsoft
Windows Server 2012 R2
Microsoft
Windows Server 2012 R2 (Server Core installation)
Microsoft
Windows Server 2016
Microsoft
Windows Server 2016 (Server Core installation)
Microsoft
Windows Server 2019
Microsoft
Windows Server 2019 (Server Core installation)
Microsoft
Windows Server 2022
Microsoft
Windows Server 2025
Microsoft
Windows Server 2025 (Server Core installation)
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-72942 is a vulnerability classified as CWE-125 (Out-of-bounds Read) found in the Windows Spaceport.sys driver. It affects various builds of Windows 10, including version 1607 and later builds up to specified update versions. The flaw permits an unauthorized attacker to perform an out-of-bounds read, potentially disclosing sensitive information remotely over a network. The vulnerability has been assigned a CVSS v3.1 base score of 6.5, indicating medium severity. Microsoft has published an official security update to address this issue.
Potential Impact
An attacker without privileges can exploit this vulnerability remotely to read memory outside the intended bounds, leading to information disclosure. There is no impact on integrity or availability. The vulnerability requires user interaction and has a low attack complexity. No known exploits are reported in the wild at this time.
Mitigation Recommendations
Microsoft has released an official security update that addresses this vulnerability. Users and administrators should apply the provided patches as soon as possible to remediate the issue. No additional mitigation steps are specified by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-08-10T18:14:23.517Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-72942","vendor":"Microsoft"}]
Threat ID: 6aa04546acd9273b49fa9ce7
Added to database: 09/08/2026, 17:26:30 UTC
Last enriched: 10/16/2026, 21:45:48 UTC
Last updated: 10/23/2026, 15:10:14 UTC
Views: 21
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