CVE-2018-8440

HighCVSS 7.8/10Known exploited (CISA KEV)Last modified Jun 17, 2026

Description

An elevation of privilege vulnerability exists when Windows improperly handles calls to Advanced Local Procedure Call (ALPC), aka "Windows ALPC Elevation of Privilege Vulnerability." This affects Windows 7, Windows Server 2012 R2, Windows RT 8.1, Windows Server 2008, Windows Server 2012, Windows 8.1, Windows Server 2016, Windows Server 2008 R2, Windows 10, Windows 10 Servers.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected software

No affected versions have been published.

Timeline

Published
Sep 13, 2018
Last modified
Jun 17, 2026
Added to CISA KEV
Mar 28, 2022
NVD status
Analyzed

Related CVEs from 2018

CVE-2018-84417.8An elevation of privilege vulnerability exists due to an integer overflow in Windows Subsystem for Linux, aka "Windows Subsystem for Linux ECVE-2018-84425.5An information disclosure vulnerability exists when the Windows kernel improperly handles objects in memory, aka "Windows Kernel InformationCVE-2018-84435.5An information disclosure vulnerability exists when the Windows kernel improperly handles objects in memory, aka "Windows Kernel InformationCVE-2018-84445.9An information disclosure vulnerability exists in the way that the Microsoft Server Message Block 2.0 (SMBv2) server handles certain requestCVE-2018-84455.5An information disclosure vulnerability exists when the Windows kernel improperly handles objects in memory, aka "Windows Kernel InformationCVE-2018-84465.5An information disclosure vulnerability exists when the Windows kernel improperly handles objects in memory, aka "Windows Kernel InformationCVE-2018-84477.5A remote code execution vulnerability exists when Internet Explorer improperly accesses objects in memory, aka "Internet Explorer Memory CorCVE-2018-84485.4An elevation of privilege vulnerability exists when Microsoft Exchange Outlook Web Access (OWA) fails to properly handle web requests, aka "CVE-2018-84493.3A security feature bypass exists when Device Guard incorrectly validates an untrusted file, aka "Device Guard Security Feature Bypass VulnerCVE-2018-84508.8A remote code execution vulnerability exists when Windows Search handles objects in memory, aka "Windows Search Remote Code Execution VulnerCVE-2018-84524.3An information disclosure vulnerability exists when the scripting engine does not properly handle objects in memory in Microsoft browsers, aCVE-2018-84537.8An elevation of privilege vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory, aka "Win32k