CVE tracker / CVE-2025-48799

CVE-2025-48799

CVE-2025-48799 is the Windows Update Service Elevation of Privilege Vulnerability. Microsoft rates it Important, CVSS 7.8. It is not in CISA's Known Exploited Vulnerabilities catalog. Published July 8, 2025.

Risk summary

HighElevation of Privilege

7.8

CVSS v3 base

1.3%

EPSS: chance of exploitation in 30 days

High

Severity

Important

Microsoft's rating

More Likely

Microsoft: exploitation

In CISA KEV

Microsoft describes it: “Improper link resolution before file access ('link following') in Windows Update Service allows an authorized attacker to elevate privileges locally.”

How to fix it

Microsoft lists 18 affected products and the update that fixes each:

KB5062552 · fixed build 10.0.22631.5624, 10.0.22621.5624
Windows 11 Version 23H2 for x64-based Systems, Windows 11 Version 23H2 for ARM64-based Systems, Windows 11 Version 22H2 for x64-based Systems, Windows 11 Version 22H2 for ARM64-based Systems
KB5062553 · fixed build 10.0.26100.4652
Windows Server 2025, Windows 11 Version 24H2 for x64-based Systems, Windows 11 Version 24H2 for ARM64-based Systems, Windows Server 2025 (Server Core installation)
KB5062554 · fixed build 10.0.19045.6093, 10.0.19044.6093
Windows 10 Version 22H2 for 32-bit Systems, Windows 10 Version 22H2 for ARM64-based Systems, Windows 10 Version 22H2 for x64-based Systems, Windows 10 Version 21H2 for x64-based Systems, Windows 10 Version 21H2 for ARM64-based Systems, and 1 more
KB5062557 · fixed build 10.0.17763.7558
Windows 10 Version 1809 for x64-based Systems, Windows 10 Version 1809 for 32-bit Systems
KB5062560 · fixed build 10.0.14393.8246
Windows 10 Version 1607 for x64-based Systems, Windows 10 Version 1607 for 32-bit Systems

What Microsoft changed

July 8, 2025: 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: July 8, 2025
Last revised: July 8, 2025

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References

Microsoft Security Update Guide NVD CVE record CWE

From Microsoft, CISA, NVD and FIRST data; the Microsoft details were read when this page was opened. Check the references above before you act.