CVE-2018-8440

7.8 HIGH CISA KEV - Actively Exploited
Published: September 13, 2018 Modified: October 28, 2025
View on NVD

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://www.securityfocus.com/bid/105153
Source: secure@microsoft.com
Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1041578
Source: secure@microsoft.com
Third Party Advisory VDB Entry
https://blog.0patch.com/2018/08/how-we-micropatched-publicly-dropped.html
Source: secure@microsoft.com
Exploit Patch Third Party Advisory
https://blog.0patch.com/2018/09/comparing-our-micropatch-with.html
Source: secure@microsoft.com
Third Party Advisory
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8440
Source: secure@microsoft.com
Patch Vendor Advisory
http://www.securityfocus.com/bid/105153
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1041578
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory VDB Entry
https://blog.0patch.com/2018/08/how-we-micropatched-publicly-dropped.html
Source: af854a3a-2127-422b-91ae-364da2661108
Exploit Patch Third Party Advisory
https://blog.0patch.com/2018/09/comparing-our-micropatch-with.html
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8440
Source: af854a3a-2127-422b-91ae-364da2661108
Patch Vendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-8440
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
US Government Resource

11 reference(s) from NVD

Quick Stats

CVSS v3 Score
7.8 / 10.0
EPSS (Exploit Probability)
75.5%
99th percentile
Exploitation Status
Actively Exploited
Remediation due: 2022-04-18

Affected Vendors

microsoft