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CVE-2018-8440: Microsoft Windows Privilege Escalation Vulnerability

criticalknown exploitedpublic exploitCVE-2018-8440
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
An elevation of privilege vulnerability exists when Windows improperly handles calls to Advanced Local Procedure Call (ALPC).

CSIRTS triage

vendor: Microsoftproduct: WindowsPrivilege escalation
What
An elevation of privilege vulnerability exists when Windows improperly handles calls to Advanced Local Procedure Call (ALPC).
Who is affected
Local users of Microsoft Windows with affected versions.
Urgency
Remediation is critical as this vulnerability is actively exploited and rated critical.
Action
Install the latest security patch for Windows.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2022-03-28
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2018-8440

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2018-8440coverage & exploitation statusNVD · CVE.org

Recent advisories for Microsoft Windows Privilege

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

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