Microsoft Windows up to Vista LoadLibrary untrusted search path

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A vulnerability has been found in Microsoft Windows up to Vista (Operating System) and classified as problematic. This vulnerability affects the function LoadLibrary. The manipulation with an unknown input leads to a untrusted search path vulnerability. The CWE definition for the vulnerability is CWE-426. The product searches for critical resources using an externally-supplied search path that can point to resources that are not under the product's direct control. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Untrusted search path vulnerability in the LoadLibrary function in the kernel in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows Server 2012, and Windows RT allows local users to gain privileges via a Trojan horse DLL in an unspecified directory, aka "Windows LoadLibrary EoP Vulnerability."

The weakness was shared 06/10/2015 with Mitsui Bussan Secure Directions, Inc. as MS15-063 as confirmed bulletin (Technet). The advisory is shared for download at This vulnerability was named CVE-2015-1758 since 02/17/2015. The attack needs to be approached locally. A single authentication is required for exploitation. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1574.

The vulnerability scanner Nessus provides a plugin with the ID 84057 (MS15-063: Vulnerability in Windows Kernel Could Allow Elevation of Privilege (3063858)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows : Microsoft Bulletins.

Applying the patch MS15-063 is able to eliminate this problem. The bugfix is ready for download at A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (84057). The entry 75794 is related to this item.








  • end of life (old version)

CPE 2.3info

CPE 2.2info


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VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
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Class: Untrusted search path
CWE: CWE-426
ATT&CK: T1574

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

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Nessus ID: 84057
Nessus Name: MS15-063: Vulnerability in Windows Kernel Could Allow Elevation of Privilege (3063858)
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Threat Intelligenceinfo

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Recommended: Patch
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Patch: MS15-063


02/17/2015 🔍
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05/20/2022 +2536 days 🔍



Advisory: MS15-063
Organization: Mitsui Bussan Secure Directions, Inc.
Status: Confirmed

CVE: CVE-2015-1758 (🔍)

SecurityTracker: 1032527 - Windows Kernel DLL Path Error Lets Local Users Gain Elevated Privileges
Vulnerability Center: 50484 - [MS15-063] Microsoft Windows Local Privilege Escalation via a Trojan Horse DLL, Medium
SecurityFocus: 75004 - Microsoft Windows LoadLibrary CVE-2015-1758 Remote Privilege Escalation Vulnerability

scip Labs:
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Created: 06/10/2015 10:16 AM
Updated: 05/20/2022 02:36 PM
Changes: 06/10/2015 10:16 AM (66), 04/07/2017 02:25 PM (11), 05/20/2022 02:36 PM (2)
Complete: 🔍


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