Windows 11 version 23H2 vulnerability

What happened

Use after free in Microsoft QUIC allows an unauthorized attacker to execute code over a network.

Affected versions

Windows 11 version 23H2: 10.0.22631.0 through before 10.0.22631.7652 (custom); 10.0.26100.0 through before 10.0.26100.9711 (custom); 10.0.26200.0 through before 10.0.26200.9711 (custom); 10.0.28000.0 through before 10.0.28000.3231 (custom); 10.0.26300.0 through before 10.0.26300.9711 (custom); 10.0.20348.0 through before 10.0.20348.5761 (custom); 10.0.26100.0 through before 10.0.26100.33650 (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.