CVE-2026-83853: Windows Hello Elevation of Privilege Vulnerability
Use after free 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 10.0.22631.7652Patch KB5126653 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26300.9711Patch KB5127648 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.19044.7807Patch KB5126657 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26100.9711Patch KB5127648 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.28000.3231Patch KB5127646 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26200.9711Patch KB5127648
Event History
Frequently Asked Questions
Who is exposed to this vulnerability?
Systems running Microsoft Windows 10 or Microsoft Windows 11 are listed as affected. Exploitation is local, so the attacker must be able to execute or interact on the target system rather than attack it solely over the network.
What access does an attacker need to exploit it?
The attacker must already be authorized and have low-level privileges on the affected Windows system. No user interaction is required, but the attack complexity is rated high.
What is the potential impact of successful exploitation?
A successful exploit can elevate the attacker's privileges locally. The supplied metrics indicate high potential impact to confidentiality, integrity, and availability.