CVE-2017-8682

HIGH

Microsoft Office 2007 - Improper Input Validation

Title source: rule
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2017-8682. PoCs published by Google Security Research.

AI-analyzed exploit summary The exploit demonstrates a memory corruption vulnerability in win32k.sys triggered by malformed TTF font files, leading to arbitrary code execution. The issue is rooted in the 'fpgm' table mutations, specifically the 'FLIPPT' instruction, causing crashes in various Windows 7 kernel functions.

Description

Windows graphics on Microsoft Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT 8.1, Windows 10 Gold, 1511, 1607, and 1703, Windows Server 2016, Microsoft Office Word Viewer, Microsoft Office 2007 Service Pack 3 , and Microsoft Office 2010 Service Pack 2 allows an attacker to execute remote code by the way it handles embedded fonts, aka "Win32k Graphics Remote Code Execution Vulnerability". This CVE ID is unique from CVE-2017-8683.

Exploits (1)

exploitdb WORKING POC VERIFIED
by Google Security Research · textdoswindows
https://www.exploit-db.com/exploits/42744

The exploit demonstrates a memory corruption vulnerability in win32k.sys triggered by malformed TTF font files, leading to arbitrary code execution. The issue is rooted in the 'fpgm' table mutations, specifically the 'FLIPPT' instruction, causing crashes in various Windows 7 kernel functions.

Classification
Working Poc 90%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: Microsoft Windows 7 (win32k.sys)
No auth needed
Prerequisites: Custom program to call GetGlyphOutline() API · Malformed TTF font files
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/1039352
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/100772
Exploit, Third Party Advisory, VDB Entry exploit x_refsource_exploit-db
https://www.exploit-db.com/exploits/42744/

Scores

CVSS v3 8.8
EPSS 0.4976
EPSS Percentile 98.8%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Details

CWE
CWE-20
Status published
Products (16)
microsoft/office_2007
microsoft/office_2010
microsoft/office_word_viewer
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
... and 6 more
Published Sep 13, 2017
Tracked Since Feb 18, 2026