CVE-2015-6127

Windows Media Center - Arbitrary File Read via Crafted .mcl File

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 2 public exploits for CVE-2015-6127. PoCs published by Core Security, Francisco Falcon, sinn3r, including Metasploit module auxiliary/server/ms15_134_mcl_leak.

AI-analyzed exploit summary This exploit leverages a vulnerability in Windows Media Center where a crafted .mcl file can trick the application into rendering itself as an HTML file, allowing arbitrary local file reads via JavaScript and exfiltration to a remote server.

Description

Windows Media Center in Microsoft Windows Vista SP2, Windows 7 SP1, Windows 8, and Windows 8.1 allows remote attackers to read arbitrary files via a crafted .mcl file, aka "Windows Media Center Information Disclosure Vulnerability."

Exploits (2)

exploitdb WORKING POC VERIFIED
by Core Security · textremotewindows
https://www.exploit-db.com/exploits/38912

This exploit leverages a vulnerability in Windows Media Center where a crafted .mcl file can trick the application into rendering itself as an HTML file, allowing arbitrary local file reads via JavaScript and exfiltration to a remote server.

Classification
Working Poc 100%
Attack Type
Info Leak
Complexity
Moderate
Reliability
Reliable
Target: Microsoft Windows Media Center (Windows 7 SP1 with IE11)
No auth needed
Prerequisites: Victim must open the malicious .mcl file · Attacker must host a server to receive exfiltrated data
devstral-2 · analyzed Feb 16, 2026 Full analysis →
metasploit WORKING POC
by Francisco Falcon, sinn3r · rubypoc
https://github.com/rapid7/metasploit-framework/blob/master/modules/auxiliary/server/ms15_134_mcl_leak.rb

This exploit leverages a vulnerability in Microsoft Windows Media Center (MS15-134) to render an MCL file as an HTML document in the local machine zone, allowing file leakage via JavaScript. It uses an XMLHttpRequest to exfiltrate specified files to an attacker-controlled server.

Classification
Working Poc 100%
Attack Type
Info Leak
Complexity
Moderate
Reliability
Reliable
Target: Microsoft Windows Media Center (prior to MS15-134 patch)
No auth needed
Prerequisites: Target must open the malicious MCL file · Internet Explorer must be used to render the MCL file
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (4)

Core 4
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/78516
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1034335
Patch, Vendor Advisory vendor-advisory x_refsource_ms
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2015/ms15-134
Exploit, Third Party Advisory, VDB Entry exploit x_refsource_exploit-db
https://www.exploit-db.com/exploits/38912/

Scores

EPSS 0.7202
EPSS Percentile 98.8%

Details

CWE
CWE-200
Status published
Products (4)
microsoft/windows_7
microsoft/windows_8
microsoft/windows_8.1
microsoft/windows_vista
Published Dec 09, 2015
Tracked Since Feb 18, 2026