PT-2025-28533 · Microsoft · Windows Update Service +3

Filip Dragović

+1

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Published

2024-09-03

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Updated

2025-08-31

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CVE-2025-48799

CVSS v3.1
7.8
VectorAV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

**Name of the Vulnerable Software and Affected Versions:**

Windows Update Service versions prior to July 8, 2025

**Description:**

An improper link resolution vulnerability exists prior to file access within the Windows Update Service. This allows an authorized attacker to elevate privileges locally. The vulnerability affects Windows 10 and Windows 11 clients with at least two hard drives. Exploitation involves manipulating symbolic links, potentially enabling arbitrary file deletion and privilege escalation. The vulnerability was addressed by Microsoft by adding a check for symbolic links for the user-supplied path.

**Recommendations:**

Update the Windows Update Service to the version released on or after July 8, 2025.

Exploit

Fix

LPE

Link Following

Weakness Enumeration

Related Identifiers

BDU:2025-08180
CVE-2025-48799

Affected Products

Windows
Windows 10
Windows 11
Windows Update Service