CVE-2018-8174
Microsoft Windows VBScript Engine Out-of-Bounds Write Vulnerability
IN CISA KEV
A remote code execution vulnerability exists in the way that the VBScript engine handles objects in memory, aka "Windows VBScript Engine Remote Code Execution"
- Vendor
- Microsoft
- Product
- Windows
- CVSS
- No score recorded (no NVD record loaded for this entry)
- CWE
- CWE-787
- Published
- Not recorded
- NVD modified
- Not recorded
CISA KEV
- Date added
- 2022-02-15
- Due date
- 2022-08-15
- Ransomware use
- Known
- Required action
- Apply updates per vendor instructions.
EPSS
88.3% chance of exploitation in the next 30 days (percentile 99th)
FIRST EPSS, updated 17 Oct 2026. About EPSS
CVSS is severity, EPSS is likelihood, KEV means already exploited. EPSS is a statistical probability, not a certainty: a low score does not make a bug safe, and a high one does not prove it is being exploited.
Data last updated 18 Oct 2026. Sources: NVD API 2.0, CISA KEV catalog, FIRST EPSS. Links: NVD, CISA KEV. Metadata only. ThreatWire does not host exploit code.