Microsoft Security Response Center guidance
Vendor revision: Sep 8, 2026Install KB5122876. Install KB5122882. Install KB5122878. Install KB5122871. Install KB5124008. Install KB5122880. Install KB5124012. Install KB5123099.
Vulnerability intelligence
CVE-2026-69478 and is rated High severity with a CVSS score of 7.8. It is not in the current CISA KEV record we collected. That does not prove exploitation has not occurred.
Install KB5122876. Install KB5122882. Install KB5122878. Install KB5122871. Install KB5124008. Install KB5122880. Install KB5124012. Install KB5123099.
Heap-based buffer overflow in Windows Device Association Service allows an authorized attacker to elevate privileges locally.
Source: NVD