CVE-2018-8459

Severity: high (CVSS 7.5 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 14.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2018-09-13 · updated 2026-06-17
Weakness: CWE-787

Description

A remote code execution vulnerability exists in the way that the ChakraCore scripting engine handles objects in memory, aka "Scripting Engine Memory Corruption Vulnerability." This affects Microsoft Edge, ChakraCore. This CVE ID is unique from CVE-2018-8354, CVE-2018-8391, CVE-2018-8456, CVE-2018-8457.

Affected products

Microsoft ChakraCore: through 1.10.1
Microsoft Edge: all versions
Microsoft ChakraCore: ChakraCore
Microsoft Edge: Windows 10 Version 1803 for 32-bit Systems, Windows 10 Version 1803 for x64-based Systems

References

http://www.securityfocus.com/bid/105230
http://www.securitytracker.com/id/1041623
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8459
http://www.securityfocus.com/bid/105230
http://www.securitytracker.com/id/1041623
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8459

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