CVE-2017-8685

MEDIUM

Windows GDI+ on Windows 7 SP1 and Windows Server 2008 SP2/R2 SP1 - Kernel Memory Address Disclosure

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2017-8685. PoCs published by Google Security Research.

AI-analyzed exploit summary This exploit demonstrates an information leak vulnerability in Windows 7 and earlier via the `nt!NtGdiEngCreatePalette` system call, which discloses uninitialized kernel stack memory. The PoC sprays the kernel stack with marker bytes and reads them back using `GetPaletteEntries()`.

Description

Windows GDI+ on Microsoft Windows Server 2008 SP2 and R2 SP1, and Windows 7 SP1 allows information disclosure by the way it discloses kernel memory addresses, aka "Windows GDI+ Information Disclosure Vulnerability". This CVE ID is unique from CVE-2017-8684 and CVE-2017-8688.

Exploits (1)

exploitdb WORKING POC VERIFIED
by Google Security Research · c++doswindows
https://www.exploit-db.com/exploits/42748

This exploit demonstrates an information leak vulnerability in Windows 7 and earlier via the `nt!NtGdiEngCreatePalette` system call, which discloses uninitialized kernel stack memory. The PoC sprays the kernel stack with marker bytes and reads them back using `GetPaletteEntries()`.

Classification
Working Poc 100%
Attack Type
Info Leak
Complexity
Moderate
Reliability
Reliable
Target: Microsoft Windows (pre-Windows 8)
Auth required
Prerequisites: Local access to a vulnerable Windows system · Authenticated user privileges
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (4)

Core 4
Core References
Exploit, Third Party Advisory, VDB Entry exploit x_refsource_exploit-db
https://www.exploit-db.com/exploits/42748/
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1039338
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/100724

Scores

CVSS v3 5.5
EPSS 0.0304
EPSS Percentile 85.8%
Attack Vector LOCAL
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Details

CWE
CWE-200
Status published
Products (4)
microsoft/windows_7
microsoft/windows_server_2008
microsoft/windows_server_2008 r2 sp1 (2 CPE variants)
Microsoft Corporation/Windows GDI+ Microsoft Windows Server 2008 SP2 and R2 SP1, and Windows 7 SP1
Published Sep 13, 2017
Tracked Since Feb 18, 2026