CVE-2026-62832

Undergoing Analysis Undergoing Analysis - In Progress

Improper Link Resolution in Windows User Profile Service

Publication date: 2026-08-11

Last updated on: 2026-08-13

Assigner: Microsoft Corporation

Description

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

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-08-11

Last Modified

2026-08-13

Generated

2026-09-01

AI Q&A

2026-08-11

EPSS Evaluated

2026-08-30

NVD

CVE-2026-62832

EUVD

EUVD-2026-56678

Affected Vendors & Products

Vendor	Product	Version / Range
microsoft	windows_10_21h2	to 10.0.19044.7663 (exc)
microsoft	windows_10_21h2	to 10.0.19044.7663 (exc)
microsoft	windows_10_21h2	to 10.0.19044.7663 (exc)
microsoft	windows_10_22h2	to 10.0.19045.7663 (exc)
microsoft	windows_10_22h2	to 10.0.19045.7663 (exc)
microsoft	windows_10_22h2	to 10.0.19045.7663 (exc)
microsoft	windows_11_23h2	to 10.0.22631.7517 (exc)
microsoft	windows_11_23h2	to 10.0.22631.7517 (exc)
microsoft	windows_11_26h1	to 10.0.28000.2704 (exc)
microsoft	windows_11_26h1	to 10.0.28000.2704 (exc)
microsoft	windows_server_2022	to 10.0.20348.5499 (exc)
microsoft	windows_server_2025	to 10.0.26100.33296 (exc)
microsoft	windows_11_24h2	to 10.0.26100.9168 (exc)
microsoft	windows_11_24h2	to 10.0.26100.9168 (exc)
microsoft	windows_11_25h2	to 10.0.26200.9168 (exc)
microsoft	windows_11_25h2	to 10.0.26200.9168 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-59	The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.

Attack-Flow Graph

Executive Summary

This vulnerability is an improper link resolution issue in the Windows User Profile Service. It allows an authorized attacker to elevate their privileges locally by exploiting how the service handles file access through symbolic links.

Detection Guidance

Detection requires checking for unauthorized privilege escalation attempts related to Windows User Profile Service. Monitor for unusual profile creation or modification events in system logs. Use commands like 'wevtutil qe System /q:*[System[EventID=1509]]' to check for User Profile Service errors.

Impact Analysis

An attacker with local access could exploit this to gain higher privileges on your system, potentially allowing them to install programs, view or delete data, or create new accounts with full user rights.

Compliance Impact

This vulnerability allows local privilege escalation, which could lead to unauthorized access to sensitive data. This may impact compliance with standards like GDPR (data protection) and HIPAA (healthcare data) by increasing the risk of data breaches or unauthorized access to protected information.

Mitigation Strategies

Apply the latest security updates from Microsoft to patch the Windows User Profile Service vulnerability. Monitor Microsoft's security advisories for updates and ensure all systems are updated promptly.

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