CVE-2018-8287

Severity: high (CVSS 7.5 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 16.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2018-07-11 · updated 2026-06-17
Weakness: CWE-787

Description

A remote code execution vulnerability exists in the way the scripting engine handles objects in memory in Microsoft browsers, aka "Scripting Engine Memory Corruption Vulnerability." This affects ChakraCore, Internet Explorer 11, Microsoft Edge, Internet Explorer 10. This CVE ID is unique from CVE-2018-8242, CVE-2018-8283, CVE-2018-8288, CVE-2018-8291, CVE-2018-8296, CVE-2018-8298.

Affected products

Microsoft ChakraCore: before 1.10.1 — fixed in 1.10.1
Microsoft Edge: all versions
Microsoft Internet Explorer 11: 11, 10
Microsoft ChakraCore: ChakraCore
Microsoft Edge: Windows 10 for 32-bit Systems, Windows 10 for x64-based Systems, Windows 10 Version 1607 for 32-bit Systems, Windows 10 Version 1607 for x64-based Systems, Windows 10 Version 1703 for 32-bit Systems, Windows 10 Version 1703 for x64-based Systems (+5)
Microsoft Internet Explorer 11: Windows 10 for 32-bit Systems, Windows 10 for x64-based Systems, Windows 10 Version 1607 for 32-bit Systems, Windows 10 Version 1607 for x64-based Systems, Windows 10 Version 1703 for 32-bit Systems, Windows 10 Version 1703 for x64-based Systems (+12)
Microsoft Internet Explorer 10: Windows Server 2012

How to fix

Upgrade to a fixed version: Microsoft ChakraCore 1.10.1. Check the vendor advisory for mitigations.

References

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