CVE-2018-8389: Microsoft Internet Explorer

High severity, CVSS 7.5. EPSS: 28.6% chance of exploitation in the next 30 days.

A remote code execution vulnerability exists in the way that the scripting engine handles objects in memory in Internet Explorer, aka "Scripting Engine Memory Corruption Vulnerability." This affects Internet Explorer 9, Internet Explorer 11, Internet Explorer 10. This CVE ID is unique from CVE-2018-8353, CVE-2018-8355, CVE-2018-8359, CVE-2018-8371, CVE-2018-8372, CVE-2018-8373, CVE-2018-8385, CVE-2018-8390.

Affected products

• Microsoft Internet Explorer: version 11 only; version 10 only; version 9 only

Published 2018-08-15. Last modified 2026-06-17.