CVE-2018-8174CISA KEV

Microsoft Windows VBScript Engine Out-of-Bounds Write 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 KEV Check MSRC

CISA catalog record

A remote code execution vulnerability exists in the way that the VBScript engine handles objects in memory, aka "Windows VBScript Engine Remote Code Execution"

Product: Windows
Added to KEV: 15 Feb 2022
Federal remediation due: 15 Aug 2022
Known ransomware use: Yes

Page history

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Field-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-2018-8174. The catalog has a separate collection scope from Microsoft release records.

More advisories, affected versions and source history

Related advisories and sources

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CVE-2018-8174 · CVE overview and exploitation status

cve-program · CVE-2018-8174

Related changes

Linked by CVE identifier

Microsoft Windows VBScript Engine Out-of-Bounds Write Vulnerability · CISA KEV deadline · 15 Aug 2022
Microsoft Windows VBScript Engine Out-of-Bounds Write Vulnerability · Added to CISA KEV · 15 Feb 2022