CVE-2015-0004
HighSummary
The User Profile Service in Windows allows local users to gain elevated privileges by conducting a junction attack to load another user's UsrClass.dat registry hive.
Risk Assessment
An attacker could gain access to data and resources that should be restricted to other users, posing a serious security threat to the system.
Recommendation
It is recommended to update systems to the latest versions and implement appropriate security measures to minimize the risk of junction attacks.
Related vulnerabilities
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Improper neutralization of special elements in output used by a downstream component ('injection') in Azure Cosmos DB allows an authorized attacker to elevate privileges over a network.
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Missing authentication for a critical function in Azure AI Foundry allows an unauthorized attacker to elevate privileges over a network.
- CVE-2026-85885Critical
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- CVE-2026-83944Critical
Improper access control in Azure Logic Apps allows an unauthorized attacker to elevate privileges over a network.
- CVE-2026-77903Critical
Authentication bypass by spoofing in Microsoft Dataverse allows an unauthorized attacker to elevate privileges over a network.
- CVE-2026-70200Critical
Improper limitation of a pathname to a restricted directory ('path traversal') in Azure Logic Apps allows an unauthorized attacker to elevate privileges over a network.
- CVE-2026-70009Critical
Improper limitation of a pathname to a restricted directory ('path traversal') in Azure Arc allows an unauthorized attacker to elevate privileges over a network.
- CVE-2026-69865Critical
Authorization bypass through a user-controlled key in Microsoft Container Registry allows an unauthorized attacker to elevate privileges over a network.
- CVE-2026-69399Critical
Elevation of Privilege vulnerability in Azure Arc. Technical details were not provided in the description.
Original NVD description (English source)
The User Profile Service (aka ProfSvc) in Microsoft Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, and Windows RT Gold and 8.1 allows local users to gain privileges by conducting a junction attack to load another user's UsrClass.dat registry hive, aka MSRC ID 20674 or "Microsoft User Profile Service Elevation of Privilege Vulnerability."

