Windows 10 Version 21H2 vulnerability

What happened

Use after free in Windows Push Notifications allows an authorized attacker to elevate privileges locally.

Affected versions

Windows 10 Version 21H2: 10.0.19044.0 through before 10.0.19044.7725 (custom); 10.0.19045.0 through before 10.0.19045.7725 (custom); 10.0.22631.0 through before 10.0.22631.7582 (custom); 10.0.26100.0 through before 10.0.26100.9445 (custom); 10.0.26200.0 through before 10.0.26200.9445 (custom); 10.0.28000.0 through before 10.0.28000.2954 (custom); 10.0.20348.0 through before 10.0.20348.5622 (custom); 10.0.26100.0 through before 10.0.26100.33438 (custom) Fixed: See vendor advisory.

Why it matters

Review the vendor advisory and exposure of the affected product to determine operational impact.

Detection & mitigation

• Apply vendor-provided updates or mitigations.
• Review affected product exposure and access logs.