CVE-2013-3881

EXPLOITED

Windows 7 SP1 and Windows Server 2008 R2 SP1 - Local Privilege Escalation via Win32k NULL Page

Title source: llm
STIX 2.1

Exploitation Summary

CVE-2013-3881 has been observed exploited in the wild (reported by VulnCheck KEV). EIP tracks 2 public exploits from researchers including Metasploit, Seth Gibson, Dan Zentner, Matias Soler, Spencer McIntyre, including a Metasploit module exploits/windows/local/ms13_081_track_popup_menu.

AI-analyzed exploit summary This Metasploit module exploits a NULL pointer dereference in win32k.sys via TrackPopupMenuEx, leading to local privilege escalation on Windows 7 SP0/SP1. It injects a reflective DLL into a notepad process to trigger the vulnerability and execute arbitrary payloads.

Description

win32k.sys in the kernel-mode drivers in Microsoft Windows 7 SP1 and Windows Server 2008 R2 SP1 allows local users to gain privileges via a crafted application, aka "Win32k NULL Page Vulnerability."

Exploits (2)

exploitdb WORKING POC VERIFIED
by Metasploit · rubylocalwindows
https://www.exploit-db.com/exploits/31576

This Metasploit module exploits a NULL pointer dereference in win32k.sys via TrackPopupMenuEx, leading to local privilege escalation on Windows 7 SP0/SP1. It injects a reflective DLL into a notepad process to trigger the vulnerability and execute arbitrary payloads.

Classification
Working Poc 100%
Attack Type
Lpe
Complexity
Moderate
Reliability
Reliable
Target: Microsoft Windows 7 SP0/SP1 (win32k.sys)
No auth needed
Prerequisites: Local access to a vulnerable Windows 7 system · Meterpreter session
devstral-2 · analyzed Feb 18, 2026 Full analysis →
metasploit WORKING POC NORMAL
by Seth Gibson, Dan Zentner, Matias Soler, Spencer McIntyre · rubypocwin
https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/windows/local/ms13_081_track_popup_menu.rb

This Metasploit module exploits a NULL pointer dereference vulnerability in win32k.sys via TrackPopupMenuEx, allowing local privilege escalation on Windows 7 SP0/SP1. It reflectively injects a DLL to trigger the exploit and execute a payload.

Classification
Working Poc 100%
Attack Type
Lpe
Complexity
Moderate
Reliability
Racy
Target: Microsoft Windows 7 SP0/SP1 (win32k.sys)
Auth required
Prerequisites: Local access to a vulnerable Windows 7 system · Meterpreter session
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (3)

Core 3
Core References
US Government Resource third-party-advisory x_refsource_cert
http://www.us-cert.gov/ncas/alerts/TA13-288A
Third Party Advisory, VDB Entry vdb-entry signature x_refsource_oval
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18614

Scores

EPSS 0.1770
EPSS Percentile 95.3%

Details

VulnCheck KEV 2022-11-03
CWE
CWE-399
Status published
Products (1)
microsoft/windows_7 (2 CPE variants)
Published Oct 09, 2013
Tracked Since Feb 18, 2026