CVE-2018-8174: Microsoft Windows VBScript Engine Out-of-Bounds Write Vulnerability

CVE-2018-8174 · Severity: critical · CVSS 7.5 · Exploited in the wild · Published 2022-02-15

A remote code execution vulnerability exists in the Microsoft VBScript engine due to the way it handles objects in memory. An attacker could exploit this out-of-bounds write vulnerability to execute arbitrary code in the context of the current user, typically via a specially crafted website or document.

Technologies: Microsoft Windows. Vendors: Microsoft.

Quick answers

Is CVE-2018-8174 exploited in the wild?
Yes. CVE-2018-8174 is known to be exploited in the wild, first recorded on 15 February 2022. Treat it as urgent.
How severe is CVE-2018-8174?
Critical severity, with a CVSS score of 7.5, published 15 February 2022.
Which products and versions are affected?
Microsoft Windows 7 Service Pack 1; Microsoft Windows 8.1; Microsoft Windows RT 8.1; Microsoft Windows 10 1607, 1703, 1709, 1803; and 3 more.
Is there a fix for CVE-2018-8174?
A patch was published on 2018-05-08: Microsoft released security updates and advisory. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2018-8174 attacked?
It is attacked over the network, in an operating system.
Am I affected by CVE-2018-8174?
Check whether you run Microsoft Windows. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Affected products

  • Microsoft Windows 7 Service Pack 1
  • Microsoft Windows 8.1
  • Microsoft Windows RT 8.1
  • Microsoft Windows 10 1607, 1703, 1709, 1803
  • Microsoft Windows Server 2008 Service Pack 2, R2 Service Pack 1
  • Microsoft Windows Server 2012 R2
  • Microsoft Windows Server 2016 1709, 1803

Timeline

  • 2018-05-08: patched: Microsoft released security updates and advisory.
  • 2022-02-15: kev added: Added to CISA Known Exploited Vulnerabilities Catalog.
  • 2022-02-15: disclosed: NVD publication date.

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