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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.

PUBLISHED Reserved 2025-05-26 | Published 2025-07-08 | Updated 2026-02-13 | Assigner microsoft




HIGH: 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

Problem types

CWE-59: Improper Link Resolution Before File Access ('Link Following')

Product status

10.0.10240.0 (custom) before 10.0.10240.21073
affected

10.0.14393.0 (custom) before 10.0.14393.8246
affected

10.0.17763.0 (custom) before 10.0.17763.7558
affected

10.0.19044.0 (custom) before 10.0.19044.6093
affected

10.0.19045.0 (custom) before 10.0.19045.6093
affected

10.0.22621.0 (custom) before 10.0.22621.5624
affected

10.0.22631.0 (custom) before 10.0.22631.5624
affected

10.0.22631.0 (custom) before 10.0.22631.5624
affected

10.0.26100.0 (custom) before 10.0.26100.4652
affected

10.0.14393.0 (custom) before 10.0.14393.8246
affected

10.0.14393.0 (custom) before 10.0.14393.8246
affected

10.0.17763.0 (custom) before 10.0.17763.7558
affected

10.0.17763.0 (custom) before 10.0.17763.7558
affected

10.0.20348.0 (custom) before 10.0.20348.3932
affected

10.0.25398.0 (custom) before 10.0.25398.1732
affected

10.0.26100.0 (custom) before 10.0.26100.4652
affected

10.0.26100.0 (custom) before 10.0.26100.4652
affected

References

msrc.microsoft.com/update-guide/vulnerability/CVE-2025-48820 (Windows AppX Deployment Service Elevation of Privilege Vulnerability) vendor-advisory patch

cve.org (CVE-2025-48820)

nvd.nist.gov (CVE-2025-48820)

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