CVE-2021-42279

MEDIUM

Microsoft ChakraCore - Out-of-bounds Write in Scripting Engine

Title source: llm

Chakra Scripting Engine Memory Corruption Vulnerability

Core 1

Core References

Patch, Vendor Advisory x_refsource_misc

CVSS v3 4.2

EPSS 0.0295

EPSS Percentile 86.6%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N

CWE

CWE-787

Status published

Products (14)

microsoft/windows_10

microsoft/windows_10 20h2

microsoft/windows_10 21h1

microsoft/windows_10 1607

microsoft/windows_10 1809

microsoft/windows_10 1909

microsoft/windows_10 2004

microsoft/windows_11 (2 CPE variants)

microsoft/windows_server_2016

microsoft/windows_server_2016 20h2

... and 4 more

Published Nov 10, 2021

Tracked Since Feb 18, 2026