CVE-2020-17131

Chakra Scripting Engine Memory Corruption Vulnerability

View on CVE.org

Published Dec 9, 2020 CVSS 3.1 · 4.2 Medium EPSS 2.0% KEV · Not listed

Description

Chakra Scripting Engine Memory Corruption Vulnerability

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Microsoft

ChakraCore

affected

Version	Status	Constraints
`0`	affected	< publication

Microsoft

Microsoft Edge (EdgeHTML-based)

affected

Version	Status	Constraints
`1.0..0`	affected	< publication

Configuration 1 [-]

AND

cpe:2.3:a:microsoft:edge:-:*:*:*:*:*:*:*

OR	cpe:2.3:o:microsoft:windows_10:20h2::::::arm64:
	cpe:2.3:o:microsoft:windows_10:20h2::::::x64:
	cpe:2.3:o:microsoft:windows_10:20h2::::::x86:
	cpe:2.3:o:microsoft:windows_10:1809::::::arm64:
	cpe:2.3:o:microsoft:windows_10:1809::::::x64:
	cpe:2.3:o:microsoft:windows_10:1809::::::x86:
	cpe:2.3:o:microsoft:windows_10:1903::::::arm64:
	cpe:2.3:o:microsoft:windows_10:1903::::::x64:
	cpe:2.3:o:microsoft:windows_10:1903::::::x86:
	cpe:2.3:o:microsoft:windows_10:1909::::::arm64:
	cpe:2.3:o:microsoft:windows_10:1909::::::x64:
	cpe:2.3:o:microsoft:windows_10:1909::::::x86:
	cpe:2.3:o:microsoft:windows_10:2004::::::arm64:
	cpe:2.3:o:microsoft:windows_10:2004::::::x64:
	cpe:2.3:o:microsoft:windows_10:2004::::::x86:
	cpe:2.3:o:microsoft:windows_server_2019:-:::::::*

Configuration 2 [-]

cpe:2.3:a:microsoft:chakracore:*:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

Source	ID	Title
EUVD	EUVD-2021-0865	Chakra Scripting Engine Memory Corruption Vulnerability
Github GHSA	GHSA-qwwg-gc55-qqrv	Out-of-bounds Write in Chakra

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity High

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction Required

No CVSS v3.0

Access Vector Network

Access Complexity High

Authentication None

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

Exploit prediction score: 2.0% (2.045% probability within 30 days)

Key SSVC decision points have not yet been added.

References

Link	Providers
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2020-17131
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-17131

History

Feb 23, 2026 6:15 PM Affected versions updated View changes

Type	Values Removed	Values Added
CPEs		cpe:2.3:a:microsoft:edge::::::::

Aug 28, 2025 10:45 PM Added references View changes

Type	Values Removed	Values Added
References		https://msrc.microsoft.com/update-guide/vulnerability/CVE-2020-17131

Subscriptions

Microsoft Chakracore Edge Windows 10 Windows Server 2019

Weaknesses

CWE-787

Sources

CVE record Updated: Jun 9, 2026, 6:08 PM

Status: PUBLISHED
Assigner: microsoft
Published: Dec 9, 2020, 11:36 PM
Updated: Jun 9, 2026, 6:08 PM
Reserved: Aug 4, 2020, 12:00 AM

View source JSON

Vulnrichment No data

No data.

NVD Updated: Jun 17, 2026, 2:58 AM

Status: Modified
Published: Dec 10, 2020, 12:15 AM
Modified: Jun 17, 2026, 2:58 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

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