EIP-2026-115778

PRE-CVE

Microsoft Windows - 'win32k!ClientPrinterThunk' Kernel Stack Memory Disclosure

Title source: legacy
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for EIP-2026-115778. PoCs published by Google Security Research.

AI-analyzed exploit summary This exploit demonstrates an uninitialized kernel stack memory disclosure vulnerability in Windows 7 via the win32k!NtGdiOpenDCW system call. It hooks the user32.dll callback dispatch table to leak kernel stack data, potentially bypassing kernel ASLR.

Description

Microsoft Windows - 'win32k!ClientPrinterThunk' Kernel Stack Memory Disclosure

Exploits (1)

exploitdb WORKING POC VERIFIED
by Google Security Research · c++doswindows
https://www.exploit-db.com/exploits/42227

This exploit demonstrates an uninitialized kernel stack memory disclosure vulnerability in Windows 7 via the win32k!NtGdiOpenDCW system call. It hooks the user32.dll callback dispatch table to leak kernel stack data, potentially bypassing kernel ASLR.

Classification
Working Poc 100%
Attack Type
Info Leak
Complexity
Moderate
Reliability
Reliable
Target: Microsoft Windows 7 32-bit
Auth required
Prerequisites: Local authenticated access · Windows 7 32-bit environment
devstral-2 · analyzed Feb 16, 2026 Full analysis →

Details

Status pre_cve
Tracked Since Feb 18, 2026