CVE-2018-8440
Microsoft Windows 7, Microsoft Windows Server 2012 R2, Microsoft Windows RT 8.1
Published 13 Sept 2018 · updated 17 Jun 2026 · Analyzed
Exploited in the wild
CISA added this to its Known Exploited Vulnerabilities catalog on 28 Mar 2022, with a remediation deadline of 18 Apr 2022 for US federal agencies. It has been used in ransomware campaigns.
Required action: Apply updates per vendor instructions.
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.
References
- www.securityfocus.com/bid/105153 · Third Party Advisory, VDB Entry
- www.securitytracker.com/id/1041578 · Third Party Advisory, VDB Entry
- blog.0patch.com/2018/08/how-we-micropatched-publicly-dropped.html · Exploit, Patch, Third Party Advisory
- blog.0patch.com/2018/09/comparing-our-micropatch-with.html · Third Party Advisory
- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8440 · Patch, Vendor Advisory
- www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-8440 · US Government Resource