CVE-2026-68838: Windows NTFS Elevation of Privilege Vulnerability
Stack-based buffer overflow in Windows NTFS allows an authorized attacker to elevate privileges over a network.
Other sources
Windows NTFS Elevation of Privilege Vulnerability
— Microsoft
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
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 6.3.9600.23397Patch KB5123066 - Upgrade
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Fixed in 10.0.28000.2954Patch KB5124012 - Upgrade
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Fixed in 10.0.26200.9445Patch KB5124008 - Upgrade
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Fixed in 10.0.26100.33438Patch KB5122871 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26100.9445Patch KB5124008 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.19045.7725Patch KB5122878 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.22631.7582Patch KB5122880 - Upgrade
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Fixed in 10.0.20348.5622Patch KB5122882 - Upgrade
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Fixed in 10.0.17763.9245Patch KB5122876 - Upgrade
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Fixed in 10.0.19044.7725Patch KB5122878
Event History
Frequently Asked Questions
What level of access does an attacker need before exploiting this issue?
The attacker must already be authorized, meaning they need privileges on the target sufficient to interact with NTFS over the network. Exploitation also requires user interaction.
Which systems should be prioritized for remediation?
Prioritize supported Microsoft Windows 10 and Windows 11 endpoints and Windows Server 2012, 2012 R2, 2016, 2019, 2022, and 2025 systems that expose or use NTFS resources over the network. Successful exploitation can result in elevated privileges and high impact to confidentiality, integrity, and availability.