CVE-2026-69826: Windows Biometric Service Elevation of Privilege Vulnerability
Heap-based buffer overflow in Windows Biometric Service allows an authorized attacker to elevate privileges over a network.
Other sources
Windows Biometric Service Elevation of Privilege Vulnerability
— Microsoft
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- 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 10.0.28000.2954Patch 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
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Fixed in 10.0.19045.7725Patch KB5122878 - 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 is exposed to this vulnerability?
Systems running the affected Microsoft Windows versions or Windows Server versions listed, and Microsoft Windows Biometric Service, are in scope. Exploitation requires an attacker to already be authorized on the target.
What access and interaction does an attacker need?
The vulnerability is network-reachable and has low attack complexity, but requires low-level privileges and user interaction. The available information does not specify what form that interaction takes.
What is the likely impact if exploitation succeeds?
A successful heap-based buffer overflow can allow elevation of privilege. The reported impact includes high confidentiality, integrity, and availability effects.