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CVE-2018-8440

is CVE-2018-8440real, exploitable, or a false positive? Here's the community ground truth.

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High · CVSS 7.8EPSS 18.5%CISA KEV

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

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

NVD MITRE CVE.org CISA KEV

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Community ground truth

Community verdict

2 verdicts
Not a real issue

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Community real-world severity: Critical (Critical 2) — CVSS base score 7.8

Practitioners rate this higher than its CVSS — treat with extra caution.

Field notes & remediation

Verdicts are the quick signal — notes are the evidence and fixes behind them.

  • 0
    Field note · Waleed AzizCurated

    Microsoft Windows Privilege Escalation Vulnerability — An elevation of privilege vulnerability exists when Windows improperly handles calls to Advanced Local Procedure Call (ALPC). Listed in the CISA KEV catalog (added 2022-03-28) — confirmed exploited in the wild, not theoretical. It is linked to known ransomware campaigns. FIRST EPSS puts the chance of exploitation in the next 30 days at ~19%. Treat it as real and prioritize remediation over triage.

  • 0
    Remediation · Priya NairCurated

    Required action for Microsoft Windows: Apply updates per vendor instructions. CISA set a federal remediation due date of 2022-04-18. After patching, verify the vulnerable path is no longer reachable before closing the finding.