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MSRC compact vulnerability detail

CVE-2025-48820 · Windows AppX Deployment Service Elevation of Privilege Vulnerability

Improper link resolution before file access ('link following') in Windows AppX Deployment Service allows an authorized attacker to elevate privileges locally.

Severity
Important
Impact
Elevation of Privilege
CVSS
7.8 base · 6.8 temporal
Release
2025-07-08
Signals
Windows AppX Deployment Service Elevation of Privilege Exploited: No Publicly disclosed: No Exploitability: Exploitation Less Likely
CWE
CWE-59: Improper Link Resolution Before File Access ('Link Following')
Patch Diff
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Resolved binary override
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Description
Improper link resolution before file access ('link following') in Windows AppX Deployment Service allows an authorized attacker to elevate privileges locally.
FAQ / Articles
Windows AppX Deployment Service Elevation of Privilege Vulnerability
Improper link resolution before file access ('link following') in Windows AppX Deployment Service allows an authorized attacker to elevate privileges locally.
FAQ
What privileges could be gained by an attacker who successfully exploited this vulnerability? An authenticated attacker would be able to delete targeted files on a system which could result in them gaining SYSTEM privileges.