CVE-2026-88224 json
Windows AppX Deployment Service Elevation of Privilege Vulnerability
published yesterday modified 17h ago also EUVD-2026-121534
- cvss
- 7.0
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 19%
- public exploits
- 0
- none known
Summary
Improper link resolution before file access ('link following') in Windows AppX Deployment Service allows an authorized attacker to elevate privileges locally.
Patch / fix
- Microsoft Windows 10 Version 1607 10.0.14393.9688
- Microsoft Windows 10 Version 1809 10.0.17763.9487
- Microsoft Windows Server 2016 10.0.14393.9688
- Microsoft Windows Server 2016 (Server Core installation) 10.0.14393.9688
- Microsoft Windows Server 2019 10.0.17763.9487
- Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.9487
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Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- yesterday
Exploit prediction
0.27% chance of exploitation in the next 30 days, higher than 19% of all scored CVEs (FIRST EPSS, 2026-11-11).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.0 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C |
| CNA | 3.1 | 7.0 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected products
- Microsoft Windows 10 Version 1607
- Microsoft Windows 10 Version 1809
- Microsoft Windows Server 2016
- Microsoft Windows Server 2016 (Server Core installation)
- Microsoft Windows Server 2019
- Microsoft Windows Server 2019 (Server Core installation)
Classification
- Weakness
-
- CWE-59 Improper Link Resolution Before File Access
References
-
msrc.microsoft.com
/update-guide/vulnerability/CVE-2026-88224
vendor-advisory, patch
Sources
- CVE List CVE-2026-88224
- NVD CVE-2026-88224
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.