CVE-2020-1065

Scripting Engine Memory Corruption Vulnerability

CVE-2020-1065 is fixed in 13 products on 1 platform, first by KB4556807, released May 12, 2020. It is not reported as exploited. Patch Radar priority: Urgent.

Urgent
CVSS
4.2
Critical
Exploitation
None reported
Exploitation Less Likely
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0224
82nd percentile

<p>A remote code execution vulnerability exists in the way that the ChakraCore scripting engine handles objects in memory. The vulnerability could corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user. An attacker who successfully exploited the vulnerability could gain the same user rights as the current user.</p> <p>If the current user is logged on with administrative user rights, an attacker who successfully exploited the vulnerability could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.</p> <p>The security update addresses the vulnerability by modifying how the ChakraCore scripting engine handles objects in memory.</p>

Where it's fixed

ProductFixed inFixReleased
Microsoft
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1803 for 32-bit Systems 17134.1488 KB4556807 May 12, 2020
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1803 for ARM64-based Systems 17134.1488 KB4556807 May 12, 2020
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1803 for x64-based Systems 17134.1488 KB4556807 May 12, 2020
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1809 for 32-bit Systems 17763.1217 KB4551853 May 12, 2020
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1809 for ARM64-based Systems 17763.1217 KB4551853 May 12, 2020
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1809 for x64-based Systems 17763.1217 KB4551853 May 12, 2020
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1903 for 32-bit Systems KB4556799 May 12, 2020
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1903 for ARM64-based Systems KB4556799 May 12, 2020
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1903 for x64-based Systems KB4556799 May 12, 2020
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1909 for 32-bit Systems KB4556799 May 12, 2020
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1909 for ARM64-based Systems KB4556799 May 12, 2020
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1909 for x64-based Systems KB4556799 May 12, 2020
Microsoft Edge (EdgeHTML-based) on Windows Server 2019 17763.1217 KB4551853 May 12, 2020

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