CVE-2018-8440CISA KEV
Microsoft Windows Privilege Escalation Vulnerability
Severity unknownCVSS unknownCheck the vendor advisory for fixed versions
CISA lists this Microsoft vulnerability as known exploited. Its MSRC release detail is outside this installation's collected history.
CISA catalog record
An elevation of privilege vulnerability exists when Windows improperly handles calls to Advanced Local Procedure Call (ALPC).
- Product
- Windows
- Added to KEV
- 28 Mar 2022
- Federal remediation due
- 18 Apr 2022
- Known ransomware use
- Yes
Page history
Changes are dated when recorded; day views use the last saved version from that UTC day, and citations stay fixed.
Cite this versionField-level log (2)
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- 23 Oct 2026 · 09:33:49 UTC
Source coverage: cisa-kevIncomplete → Current
- 23 Oct 2026 · 08:31:50 UTC
Source coverage: cisa-kevCurrent → Incomplete
Explore global source statements, affected packages and advisory history for CVE-2018-8440. The catalog has a separate collection scope from Microsoft release records.
More advisories, affected versions and source history
cve-program · CVE-2018-8440
PublishedWindows 7
Vendor product
Publisher's version information
Shown as published. These rules are not interpreted as NuGet package version ranges.
{
"product": "Windows 7",
"vendor": "Microsoft",
"versions": [
{
"status": "affected",
"version": "32-bit Systems Service Pack 1"
},
{
"status": "affected",
"version": "x64-based Systems Service Pack 1"
}
]
}Windows Server 2012 R2
Vendor product
Publisher's version information
Shown as published. These rules are not interpreted as NuGet package version ranges.
{
"product": "Windows Server 2012 R2",
"vendor": "Microsoft",
"versions": [
{
"status": "affected",
"version": "(Server Core installation)"
}
]
}Windows RT 8.1
Vendor product
Publisher's version information
Shown as published. These rules are not interpreted as NuGet package version ranges.
{
"product": "Windows RT 8.1",
"vendor": "Microsoft",
"versions": [
{
"status": "affected",
"version": "Windows RT 8.1"
}
]
}Windows Server 2008
Vendor product
Publisher's version information
Shown as published. These rules are not interpreted as NuGet package version ranges.
{
"product": "Windows Server 2008",
"vendor": "Microsoft",
"versions": [
{
"status": "affected",
"version": "32-bit Systems Service Pack 2"
},
{
"status": "affected",
"version": "32-bit Systems Service Pack 2 (Server Core installation)"
},
{
"status": "affected",
"version": "Itanium-Based Systems Service Pack 2"
},
{
"status": "affected",
"version": "x64-based Systems Service Pack 2"
},
{
"status": "affected",
"version": "x64-based Systems Service Pack 2 (Server Core installation)"
}
]
}Windows Server 2012
Vendor product
Publisher's version information
Shown as published. These rules are not interpreted as NuGet package version ranges.
{
"product": "Windows Server 2012",
"vendor": "Microsoft",
"versions": [
{
"status": "affected",
"version": "(Server Core installation)"
}
]
}Windows 8.1
Vendor product
Publisher's version information
Shown as published. These rules are not interpreted as NuGet package version ranges.
{
"product": "Windows 8.1",
"vendor": "Microsoft",
"versions": [
{
"status": "affected",
"version": "32-bit systems"
},
{
"status": "affected",
"version": "x64-based systems"
}
]
}Windows Server 2016
Vendor product
Publisher's version information
Shown as published. These rules are not interpreted as NuGet package version ranges.
{
"product": "Windows Server 2016",
"vendor": "Microsoft",
"versions": [
{
"status": "affected",
"version": "(Server Core installation)"
}
]
}Windows Server 2008 R2
Vendor product
Publisher's version information
Shown as published. These rules are not interpreted as NuGet package version ranges.
{
"product": "Windows Server 2008 R2",
"vendor": "Microsoft",
"versions": [
{
"status": "affected",
"version": "Itanium-Based Systems Service Pack 1"
},
{
"status": "affected",
"version": "x64-based Systems Service Pack 1"
},
{
"status": "affected",
"version": "x64-based Systems Service Pack 1 (Server Core installation)"
}
]
}Windows 10
Vendor product
Publisher's version information
Shown as published. These rules are not interpreted as NuGet package version ranges.
{
"product": "Windows 10",
"vendor": "Microsoft",
"versions": [
{
"status": "affected",
"version": "32-bit Systems"
},
{
"status": "affected",
"version": "Version 1607 for 32-bit Systems"
},
{
"status": "affected",
"version": "Version 1607 for x64-based Systems"
},
{
"status": "affected",
"version": "Version 1703 for 32-bit Systems"
},
{
"status": "affected",
"version": "Version 1703 for x64-based Systems"
},
{
"status": "affected",
"version": "Version 1709 for 32-bit Systems"
},
{
"status": "affected",
"version": "Version 1709 for x64-based Systems"
},
{
"status": "affected",
"version": "Version 1803 for 32-bit Systems"
},
{
"status": "affected",
"version": "Version 1803 for x64-based Systems"
},
{
"status": "affected",
"version": "x64-based Systems"
}
]
}Windows 10 Servers
Vendor product
Publisher's version information
Shown as published. These rules are not interpreted as NuGet package version ranges.
{
"product": "Windows 10 Servers",
"vendor": "Microsoft",
"versions": [
{
"status": "affected",
"version": "version 1709 (Server Core Installation)"
},
{
"status": "affected",
"version": "version 1803 (Server Core Installation)"
}
]
}Original source record · Cite this exact observation · Complete original publisher JSON