CVE-2017-8478

MEDIUM

Microsoft Windows - Authenticated Information Disclosure via Specially Crafted Application

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2017-8478. PoCs published by Google Security Research.

AI-analyzed exploit summary This exploit demonstrates an information leak vulnerability in the Windows kernel's `NtQueryInformationJobObject` system call (CVE-2017-8478), where uninitialized kernel stack memory is disclosed to user-mode clients. The PoC sprays the kernel stack with marker bytes and triggers the vulnerability to leak 4 bytes of uninitialized memory.

Description

The kernel in 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, 1703, and Windows Server 2016 allows an authenticated attacker to obtain information via a specially crafted application. aka "Windows Kernel Information Disclosure Vulnerability," a different vulnerability than CVE-2017-8491, CVE-2017-8490, CVE-2017-8489, CVE-2017-8488, CVE-2017-8485, CVE-2017-8483, CVE-2017-8482, CVE-2017-8481, CVE-2017-8480, CVE-2017-8479, CVE-2017-8476, CVE-2017-8474, CVE-2017-8469, CVE-2017-8462, CVE-2017-0300, CVE-2017-0299, and CVE-2017-0297.

Exploits (1)

exploitdb WORKING POC VERIFIED
by Google Security Research · c++doswindows
https://www.exploit-db.com/exploits/42231

This exploit demonstrates an information leak vulnerability in the Windows kernel's `NtQueryInformationJobObject` system call (CVE-2017-8478), where uninitialized kernel stack memory is disclosed to user-mode clients. The PoC sprays the kernel stack with marker bytes and triggers the vulnerability to leak 4 bytes of uninitialized memory.

Classification
Working Poc 100%
Attack Type
Info Leak
Complexity
Moderate
Reliability
Reliable
Target: Microsoft Windows 10 1607 32-bit
Auth required
Prerequisites: Local authenticated access to the target system · Windows 10 1607 32-bit environment
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (3)

Core 3
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/98845
Exploit, Third Party Advisory, VDB Entry exploit x_refsource_exploit-db
https://www.exploit-db.com/exploits/42231/

Scores

CVSS v3 5.0
EPSS 0.1477
EPSS Percentile 94.6%
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