CVE-2026-88224: Windows AppX Deployment Service Elevation of Privilege Vulnerability
Published Nov 10, 2026
·Updated
Improper link resolution before file access ('link following') in Windows AppX Deployment Service allows an authorized attacker to elevate privileges locally.
Other sources
Windows AppX Deployment Service Elevation of Privilege Vulnerability
— Microsoft
Affected Software
8 affected componentsFixes available
Microsoft Windows 10=1809, >=10.0.17763<10.0.17763.9487
10.0.17763.9487
Microsoft Windows Server 2019<10.0.17763.9487
10.0.17763.9487
Microsoft Windows Server 2016<10.0.14393.9688
10.0.14393.9688
Microsoft Windows Server 2016<10.0.14393.9688
10.0.14393.9688
Microsoft Windows 10=1607, >=10.0.14393<10.0.14393.9688
10.0.14393.9688
Microsoft Windows 10=1809, >=10.0.17763<10.0.17763.9487
10.0.17763.9487
Microsoft Windows Server 2019<10.0.17763.9487
10.0.17763.9487
Microsoft Windows 10=1607, >=10.0.14393<10.0.14393.9688
10.0.14393.9688
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 10.0.17763.9487Patch KB5131085 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.14393.9688Patch KB5131291
Event History
Nov 10, 2026
CVE Published
via Microsoft·04:00 PM
Data Sourced
via Microsoft·04:00 PM
DescriptionSeverityWeakness
Data Sourced
via Microsoft·04:00 PM
Affected Software
CVE Published
via MITRE·06:16 PM
Data Sourced
via MITRE·06:16 PM
DescriptionSeverity
Data Sourced
via NVD·07:21 PM
DescriptionSeverityWeakness