CVE tracker / CVE-2026-88224
CVE-2026-88224
CVE-2026-88224 is the Windows AppX Deployment Service Elevation of Privilege Vulnerability. Microsoft rates it Important, CVSS 7.0. It is not in CISA's Known Exploited Vulnerabilities catalog. Published November 10, 2026.
Risk summary
Microsoft describes it: “Improper link resolution before file access ('link following') in Windows AppX Deployment Service allows an authorized attacker to elevate privileges locally.”
How to fix it
Microsoft lists 8 affected products and the update that fixes each:
- KB5131085 · fixed build 10.0.17763.9487
Windows Server 2019 (Server Core installation), Windows Server 2019, Windows 10 Version 1809 for x64-based Systems, Windows 10 Version 1809 for 32-bit Systems - KB5131291 · fixed build 10.0.14393.9688
Windows Server 2016 (Server Core installation), Windows Server 2016, Windows 10 Version 1607 for x64-based Systems, Windows 10 Version 1607 for 32-bit Systems
What Microsoft changed
- November 10, 2026: Information published.
Details
- Weakness
- CWE-59: Improper Link Resolution Before File Access ('Link Following')
- Publicly disclosed (Microsoft)
- No
- Exploited (Microsoft)
- No
- Known exploited (CISA KEV)
- Not listed
- Published
- November 10, 2026
- Last revised
- November 10, 2026
Get told when this changes
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References
From Microsoft, CISA, NVD and FIRST data; the Microsoft details were read when this page was opened. Check the references above before you act.