CVE-2026-83911: Windows Storage Elevation of Privilege Vulnerability
Heap-based buffer overflow in Windows Storage allows an authorized attacker to elevate privileges locally.
Other sources
Windows Storage 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 10.0.28000.3231Patch KB5127646 - Upgrade
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Fixed in 10.0.26300.9711Patch KB5127648 - Upgrade
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Fixed in 10.0.26100.9711Patch KB5127648 - Upgrade
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Fixed in 6.3.9600.23470Patch KB5126836 - Upgrade
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Fixed in 10.0.14393.9612Patch KB5126868 - Upgrade
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Fixed in 6.2.9200.26434Patch KB5126835 - Upgrade
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Fixed in 10.0.26100.33650Patch KB5126646 - Upgrade
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Fixed in 10.0.17763.9376Patch KB5126651 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26200.9711Patch KB5127648 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.22631.7652Patch KB5126653 - Upgrade
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Fixed in 10.0.19044.7807Patch KB5126657 - Upgrade
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Fixed in 10.0.20348.5761Patch KB5126655
Event History
Frequently Asked Questions
Who can exploit this vulnerability?
An attacker must already be authorized to access the affected system and must be able to execute an attack locally. The vulnerability affects the listed Windows 10, Windows 11, and Windows Server versions.
What level of access could an attacker gain?
Successful exploitation can elevate the attacker's privileges on the local system. The provided severity vector indicates potential high impact to confidentiality, integrity, and availability.
Does exploitation require user interaction or network access?
No user interaction is required. The attack vector is local, so the attacker needs local access rather than remote network-only access.