PT-2018-2031 · Microsoft · Win32K+12

Published 2018-12-11 · Updated 2026-01-30 · CVE-2018-8641

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Windows 7 Windows Server 2012 R2 Windows RT 8.1 Windows Server 2008 Windows Server 2019 Windows Server 2012 Windows 8.1 Windows Server 2016 Windows Server 2008 R2 Windows 10 Windows 10 Servers

Description The issue is caused by the Windows kernel-mode driver's failure to properly handle objects in memory. This can be exploited by attackers to affect the system, potentially allowing them to execute arbitrary code in kernel mode using a specially crafted application.

Recommendations For Windows 7, apply the necessary patch to fix the elevation of privilege vulnerability. For Windows Server 2012 R2, apply the necessary patch to fix the elevation of privilege vulnerability. For Windows RT 8.1, apply the necessary patch to fix the elevation of privilege vulnerability. For Windows Server 2008, apply the necessary patch to fix the elevation of privilege vulnerability. For Windows Server 2019, apply the necessary patch to fix the elevation of privilege vulnerability. For Windows Server 2012, apply the necessary patch to fix the elevation of privilege vulnerability. For Windows 8.1, apply the necessary patch to fix the elevation of privilege vulnerability. For Windows Server 2016, apply the necessary patch to fix the elevation of privilege vulnerability. For Windows Server 2008 R2, apply the necessary patch to fix the elevation of privilege vulnerability. For Windows 10, apply the necessary patch to fix the elevation of privilege vulnerability. For Windows 10 Servers, apply the necessary patch to fix the elevation of privilege vulnerability. As a temporary workaround, consider restricting access to the Win32k component until a patch is available.

Fix

LPE

Improper Privilege Management

Buffer Overflow

Improper Resource Release

Weakness Enumeration

CWE-269

CWE-119

CWE-404

Related Identifiers

BDU:2018-01647

CVE-2018-8641

Affected Products

Win32K

Windows

Windows 10

Windows 10 Servers

Windows 7

Windows 8.1

Windows Rt 8.1

Windows Server 2008

Windows Server 2008 R2

Windows Server 2012

Windows Server 2012 R2

Windows Server 2016

Windows Server 2019

References · 13

• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-8641 · Security Note
• https://bdu.fstec.ru/vul/2018-01647 · Security Note
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8641 · Vendor Advisory
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2018-8641 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2018-8641 · Security Note
• https://osv.dev/vulnerability/CVE-2018-8641 · Vendor Advisory
• https://t.me/cvenotify/124944 · Telegram Post
• https://vuldb.com/?id.127880 · Note
• https://t.me/cvenotify/113138 · Telegram Post
• https://t.me/cvenotify/125161 · Telegram Post
• https://t.me/cvenotify/113282 · Telegram Post
• http://securityfocus.com/bid/106090 · Note
• https://t.me/cveNotify/140809 · Telegram Post