CVE-2018-8174
Microsoft Windows VBScript Engine Out-of-Bounds Write Vulnerability
- Published
- May 9, 2018
- Updated
- Aug 13, 2026
- Assigning CNA
- microsoft
- Evidence observed
- May 21, 2018
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:HHigh · next 30 days
- Percentile
- 99.8%
- Model date
- Sep 21, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
CISA Known Exploited
This CVE appears in the CISA Known Exploited Vulnerabilities catalog.
Summary
A remote code execution vulnerability exists in the way that the VBScript engine handles objects in memory, aka "Windows VBScript Engine Remote Code Execution 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.
Sources
10- CVE-2018-8174_EXPExploit
Python-based exploit generator for CVE-2018-8174, producing malicious RTF files delivered via HTML pages with reverse shell callback capability.
- CVE-2018-8174-msfExploit
Metasploit module generating a malicious Word document to exploit CVE-2018-8174, a VBScript memory corruption vulnerability in Microsoft Office 32-bit.
- CVE-2018-8174-expExploit
Python-based exploit for CVE-2018-8174 targeting Internet Explorer via crafted RTF file, enabling remote code execution with netcat reverse shell callback.
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