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CVE-2017-8658

CRITICAL

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".

Published: Aug 11, 2017 Modified: Jun 17, 2026
CWE-119

CVSS Metrics

CVSSv3
Attack Vector: NETWORK Attack Complexity: LOW Privileges Required: NONE User Interaction: NONE Scope: UNCHANGED Confidentiality Impact: HIGH Integrity Impact: HIGH Availability Impact: HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Products (1)

Vendor Product Version
microsoft chakracore *

GitHub Security Advisory GHSA-8v2h-4jpm-3wfm

ChakraCore RCE Vulnerability

nuget Microsoft.ChakraCore < 1.6.1 Fixed: 1.6.1

Risk Scores

CVSS Score 9.8 / 10
EPSS Score 20.07%

Top 3% most likely to be exploited

Threat Score 45.2 / 100

Data Sources

NVD EPSS GitHub