Microsoft Security Response Center guidance
Vendor revision: Nov 10, 2026Install KB5131291. Install KB5131085.
Vendor-listed releases
- 10.0.14393.9688
- 10.0.17763.9487
Vulnerability intelligence
CVE-2026-88224 and is rated High severity with a CVSS score of 7.0. It is not in the current CISA KEV record we collected. That does not prove exploitation has not occurred.
Install KB5131291. Install KB5131085.
Vendor-listed releases
Improper link resolution before file access ('link following') in Windows AppX Deployment Service allows an authorized attacker to elevate privileges locally.
Source: NVD