Assessment
Why it matters
CISA lists this vulnerability as known to be exploited; exploitation is confirmed; EPSS is 88.5%; technical severity is CVSS 7.5.
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.
Who should care
- Teams operating Windows, Windows 10 1607, Windows 10 1703 +8 more
- Vulnerability and exposure management teams
- Security operations teams monitoring exploitation activity
Response plan
What I would do
- Confirm whether Windows, Windows 10 1607, Windows 10 1703 +8 more is present in the environment.
- Identify affected versions and establish whether vulnerable services are exposed or reachable.
- Apply updates per vendor instructions.
- Review relevant security telemetry for evidence of attempted or successful exploitation.
- Document the remediation decision and track it to verified completion.
Vendor remediation
Patch and remediation links
Use the vendor source below to confirm the correct fixed version, package or mitigation for your affected product.
Technical details
- CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
- CWE
- CWE-787
- Affected versions
- Microsoft Windows; Microsoft Windows 10 1607 (Version: -); Microsoft Windows 10 1703 (Version: -); Microsoft Windows 10 1709 (Version: -); Microsoft Windows 10 1803 (Version: -); Microsoft Windows 7 (Version: -); Microsoft Windows 8.1 (Version: -); Microsoft Windows Rt 8.1 (Version: -)
- Published
- 9 May 2018
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
Signal timeline
- CVE published
- Added to CISA KEV
- Latest EPSS score: 88.5%
- Signal calculated at 84