CVE-2026-69619: Windows exFAT File System Elevation of Privilege Vulnerability
Out-of-bounds read in Windows exFAT File System allows an authorized attacker to elevate privileges over a network.
Other sources
Windows exFAT File System 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 10.0.19044.7725Patch KB5122878 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.19045.7725Patch KB5122878 - 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 10.0.22631.7582Patch KB5122880 - Upgrade
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Fixed in 10.0.17763.9245Patch KB5122876 - 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 10.0.26200.9445Patch KB5124008 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.20348.5622Patch KB5122882
Event History
Frequently Asked Questions
Which systems should be prioritized for remediation?
Prioritize Microsoft Windows 10 and Windows 11 endpoints, plus Windows Server 2012, 2012 R2, 2016, 2019, 2022, and 2025 systems. The issue is rated high severity and can result in elevated privileges with high impacts to confidentiality, integrity, and availability.
What level of access and interaction does exploitation require?
An attacker must already be authorized and exploitation requires user interaction. The attack vector is network-based and has low attack complexity.
Is this vulnerability remotely exploitable without authentication?
The available data does not indicate unauthenticated exploitation. The vector specifies privileges required, meaning the attacker needs authorized access before attempting exploitation.