CVE-2017-8658: Microsoft ChakraCore

Critical severity, CVSS 9.8. EPSS: 20.1% chance of exploitation in the next 30 days.

A remote code execution vulnerability exists in the way that the Chakra JavaScript engine renders when handling objects in memory, aka "Scripting Engine Memory Corruption Vulnerability".

Affected products

• Microsoft ChakraCore: up to and including 1.7.0

Published 2017-08-11. Last modified 2026-06-17.