CVE-2026-68841: Windows NTFS Elevation of Privilege Vulnerability
Heap-based buffer overflow in Windows NTFS allows an authorized attacker to elevate privileges locally.
Other sources
Windows NTFS Elevation of Privilege Vulnerability
— Microsoft
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
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Fixed in 6.3.9600.23397Patch KB5123066 - Upgrade
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Fixed in 6.2.9200.26349Patch KB5123065 - Upgrade
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Fixed in 10.0.14393.9512Patch KB5123099 - Upgrade
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Fixed in 10.0.28000.2954Patch KB5124012 - Upgrade
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Fixed in 10.0.26100.33438Patch KB5122871 - Upgrade
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Fixed in 10.0.26100.9445Patch KB5124008 - Upgrade
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Fixed in 10.0.22631.7582Patch KB5122880 - Upgrade
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Fixed in 10.0.19045.7725Patch KB5122878 - Upgrade
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Fixed in 10.0.26200.9445Patch KB5124008 - Upgrade
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Fixed in 10.0.19044.7725Patch KB5122878 - Upgrade
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Fixed in 10.0.20348.5622Patch KB5122882 - Upgrade
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Fixed in 10.0.17763.9245Patch KB5122876
Event History
Frequently Asked Questions
Who can exploit this vulnerability?
An attacker must already be authorized to access the affected Windows system and must be able to execute an exploit locally. It is not described as remotely exploitable and does not require user interaction.
What is the likely impact of successful exploitation?
Successful exploitation can elevate an authorized local attacker’s privileges. The supplied severity vector indicates high impact to confidentiality, integrity, and availability.
Which systems should be assessed?
Assess Microsoft Windows 10 and Windows 11, plus Windows Server 2012, 2012 R2, 2016, 2019, 2022, and 2025. The provided data does not identify affected build numbers, update levels, or configuration-specific exclusions.