CVE-2015-6128

Windows Vista SP2, Windows Server 2008 SP2/R2 SP1, Windows 7 SP1 - Privilege Escalation via Library Loading

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 2 public exploits for CVE-2015-6128. PoCs published by Google Security Research.

AI-analyzed exploit summary This exploit demonstrates a DLL planting attack in Microsoft Office via a crafted OLE object. By modifying the CLSID in a document, an attacker can force the loading of a malicious DLL (elsext.dll) from the current directory, achieving arbitrary code execution.

Description

Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, and Windows 7 SP1 mishandle library loading, which allows local users to gain privileges via a crafted application, aka "Windows Library Loading Remote Code Execution Vulnerability."

Exploits (2)

exploitdb WORKING POC VERIFIED
by Google Security Research · textremotewindows
https://www.exploit-db.com/exploits/38918

This exploit demonstrates a DLL planting attack in Microsoft Office via a crafted OLE object. By modifying the CLSID in a document, an attacker can force the loading of a malicious DLL (elsext.dll) from the current directory, achieving arbitrary code execution.

Classification
Working Poc 90%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: Microsoft Office 2013 (Windows 7 x64)
No auth needed
Prerequisites: Victim opens a malicious document · Malicious DLL placed in the same directory as the document
devstral-2 · analyzed Feb 16, 2026 Full analysis →
exploitdb WORKING POC
rubylocalwindows
https://www.exploit-db.com/exploits/41706

This Metasploit module exploits multiple DLL side-loading vulnerabilities in various COM components by embedding a malicious OLE object in a PPSX file. When opened, the file triggers the loading of a malicious DLL from the current directory, leading to arbitrary code execution.

Classification
Working Poc 100%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: Microsoft Office (2007-2016) and various Windows components (Vista-10)
No auth needed
Prerequisites: Victim must open the malicious PPSX file from a directory containing the attacker's DLL
devstral-2 · analyzed Feb 19, 2026 Full analysis →

References (4)

Core 4
Core References
Exploit, Third Party Advisory exploit x_refsource_exploit-db
https://www.exploit-db.com/exploits/38918/
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1034338
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/78612

Scores

EPSS 0.4158
EPSS Percentile 97.5%

Details

CWE
CWE-20
Status published
Products (4)
microsoft/windows_7 (2 CPE variants)
microsoft/windows_server_2008
microsoft/windows_server_2008 r2 sp1
microsoft/windows_vista
Published Dec 09, 2015
Tracked Since Feb 18, 2026