CVE-2017-8471

MEDIUM

Microsoft Windows - Information Disclosure via Improper Memory Initialization

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2017-8471. PoCs published by Google Security Research.

AI-analyzed exploit summary This exploit demonstrates an information leak vulnerability in Windows 7-10 via the win32k!NtGdiGetOutlineTextMetricsInternalW system call, which discloses uninitialized kernel stack memory. The PoC sprays the kernel stack with known values to confirm the leak.

Description

Microsoft Windows 7 SP1, Windows Server 2008 SP2 and R2 SP1, Windows 8.1 and Windows RT 8.1, Windows Server 2012 and R2, Windows 10 Gold, 1511, 1607, and 1703, and Windows Server 2016 allow an authenticated attacker to run a specially crafted application when the Windows kernel improperly initializes objects in memory, aka "Win32k Information Disclosure Vulnerability". This CVE ID is unique from CVE-2017-8470, CVE-2017-8472, CVE-2017-8473, CVE-2017-8475, CVE-2017-8477, and CVE-2017-8484.

Exploits (1)

exploitdb WORKING POC VERIFIED
by Google Security Research · c++doswindows
https://www.exploit-db.com/exploits/42224

This exploit demonstrates an information leak vulnerability in Windows 7-10 via the win32k!NtGdiGetOutlineTextMetricsInternalW system call, which discloses uninitialized kernel stack memory. The PoC sprays the kernel stack with known values to confirm the leak.

Classification
Working Poc 100%
Attack Type
Info Leak
Complexity
Moderate
Reliability
Reliable
Target: Microsoft Windows 7-10 (win32k.sys)
Auth required
Prerequisites: Local authenticated access · Windows 7-10 system
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (4)

Core 4
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1038659
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/98849
Exploit, Third Party Advisory, VDB Entry exploit x_refsource_exploit-db
https://www.exploit-db.com/exploits/42224/

Scores

CVSS v3 5.0
EPSS 0.0773
EPSS Percentile 92.0%
Attack Vector LOCAL
CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N

Details

CWE
CWE-200
Status published
Products (13)
microsoft/windows_10
microsoft/windows_10 1511
microsoft/windows_10 1607
microsoft/windows_10 1703
microsoft/windows_7
microsoft/windows_8.1
microsoft/windows_rt_8.1
microsoft/windows_server_2008
microsoft/windows_server_2008 r2 sp1 (2 CPE variants)
microsoft/windows_server_2012
... and 3 more
Published Jun 15, 2017
Tracked Since Feb 18, 2026