Windows AppX Deployment Service Security Feature Bypass Vulnerability
To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle
describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2026-69979US | medium5.5 | — | ||
Improper protection of alternate path in Windows AppX Deployment Service allows an authorized attacker to bypass a security feature locally. | ||||
references
External citations — patches, advisories, analysis.
- CVE-2026-69979 Windows AppX Deployment Service Security Feature Bypass Vulnerability - CSAFself
- CVE-2026-69979 Windows AppX Deployment Service Security Feature Bypass Vulnerability - HTMLself
- Microsoft Support Lifecycleexternal
- Common Vulnerability Scoring Systemexternal
- Microsoft Exploitability Indexexternal
remediations (20)
- FixedWindows 10 Version 21H2 for 32-bit Systems
10.0.19044.7807:Security Update:https://support.microsoft.com/help/5126657
https://support.microsoft.com/help/5126657 - FixedWindows 10 Version 21H2 for ARM64-based Systems
10.0.19044.7807:Security Update:https://support.microsoft.com/help/5126657
https://support.microsoft.com/help/5126657 - FixedWindows 10 Version 21H2 for x64-based Systems
10.0.19044.7807:Security Update:https://support.microsoft.com/help/5126657
https://support.microsoft.com/help/5126657 - FixedWindows 10 Version 22H2 for 32-bit Systems
10.0.19045.7807:Security Update:https://support.microsoft.com/help/5126657
https://support.microsoft.com/help/5126657 - FixedWindows 10 Version 22H2 for ARM64-based Systems
10.0.19045.7807:Security Update:https://support.microsoft.com/help/5126657
https://support.microsoft.com/help/5126657 - FixedWindows 10 Version 22H2 for x64-based Systems
10.0.19045.7807:Security Update:https://support.microsoft.com/help/5126657
https://support.microsoft.com/help/5126657 - FixedWindows 11 Version 23H2 for ARM64-based Systems
10.0.22631.7652:Security Update:https://support.microsoft.com/help/5126653
https://support.microsoft.com/help/5126653 - FixedWindows 11 Version 23H2 for x64-based Systems
10.0.22631.7652:Security Update:https://support.microsoft.com/help/5126653
https://support.microsoft.com/help/5126653 - FixedWindows 11 Version 24H2 for ARM64-based Systems
10.0.26100.9711:Security Update:https://support.microsoft.com/help/5127648
https://support.microsoft.com/help/5127648 - FixedWindows 11 Version 24H2 for x64-based Systems
10.0.26100.9711:Security Update:https://support.microsoft.com/help/5127648
https://support.microsoft.com/help/5127648 - FixedWindows 11 Version 25H2 for ARM64-based Systems
10.0.26200.9711:Security Update:https://support.microsoft.com/help/5127648
https://support.microsoft.com/help/5127648 - FixedWindows 11 Version 25H2 for x64-based Systems
10.0.26200.9711:Security Update:https://support.microsoft.com/help/5127648
https://support.microsoft.com/help/5127648 - FixedWindows 11 Version 26H1 for ARM64-based Systems
10.0.28000.3231:Security Update:https://support.microsoft.com/help/5127646
https://support.microsoft.com/help/5127646 - FixedWindows 11 Version 26H2 for ARM64-based Systems
10.0.26300.9711:Security Update:https://support.microsoft.com/help/5127648
https://support.microsoft.com/help/5127648 - FixedWindows 11 Version 26H2 for x64-based Systems
10.0.26300.9711:Security Update:https://support.microsoft.com/help/5127648
https://support.microsoft.com/help/5127648 - FixedWindows 11 version 26H1 for x64-based Systems
10.0.28000.3231:Security Update:https://support.microsoft.com/help/5127646
https://support.microsoft.com/help/5127646 - FixedWindows Server 2022
10.0.20348.5761:Security Update:https://support.microsoft.com/help/5126655
https://support.microsoft.com/help/5126655 - FixedWindows Server 2022 (Server Core installation)
10.0.20348.5761:Security Update:https://support.microsoft.com/help/5126655
https://support.microsoft.com/help/5126655 - FixedWindows Server 2025
10.0.26100.33650:Security Update:https://support.microsoft.com/help/5126646
https://support.microsoft.com/help/5126646 - FixedWindows Server 2025 (Server Core installation)
10.0.26100.33650:Security Update:https://support.microsoft.com/help/5126646
https://support.microsoft.com/help/5126646
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