CVE-2026-69799: Windows Hello Elevation of Privilege Vulnerability
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Hello allows an authorized attacker to elevate privileges locally.
Other sources
Windows Hello 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 10.0.28000.2954Patch KB5124012 - 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 10.0.22631.7582Patch KB5122880 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26200.9445Patch 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 10.0.19044.7725Patch KB5122878
Event History
Frequently Asked Questions
Who can exploit this vulnerability?
An attacker must already be authorized on the affected Windows system and have local access. The issue is described as a local elevation-of-privilege vulnerability, not a remote attack vector.
What level of access could exploitation provide?
Successful exploitation can allow the authorized local attacker to elevate privileges. The supplied severity vector indicates high impacts to confidentiality, integrity, and availability, with a changed scope.
What systems are identified as affected?
The listed affected software is Microsoft Windows 10 and Microsoft Windows 11. No more specific editions, builds, or update levels are provided.
How difficult is exploitation expected to be?
The severity vector identifies attack complexity as high and requires low privileges. No user interaction is required according to the supplied vector.