CVE Tools
Sign in

CVE-2021-42279

Chakra Scripting Engine Memory Corruption Vulnerability

Published: Nov 10, 2021Updated: Nov 21, 2024 Sources: CVE List NVD GHSA BDUCWE-787
NVD MITRE
4.2CVSSMEDIUM
EPSS Score
1.9%
Top 22.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

Chakra Scripting Engine and ChakraCore Vulnerable to Memory Corruption

CVSS Vector Breakdown

AV:NAC:HPR:NUI:RS:UC:LI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

CWE-787

Affected Products

ChakraCoreMicrosoft
On-prem
Operating Systems / linux-distro
Windows 10 Version 21H1Microsoft
On-premOS
Operating Systems / windows
Windows 11 version 21H2Microsoft
On-premOS
Operating Systems / windows
Windows Server 2022Microsoft
On-premOS
Operating Systems / windows
Windows Server version 20H2Microsoft
OS
Operating Systems / windows
microsoftcommercialUSOperating Systems
and 28 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-42279
portal.msrc.microsoft.com
https://nvd.nist.gov/vuln/detail/CVE-2021-42279
nvd.nist.gov
https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-42279
msrc.microsoft.com
and 1 more references View all →

Timeline

Published
Nov 10, 2021
Last Updated
Nov 21, 2024

Unlock Complete Vulnerability Intelligence

Get the full picture for CVE-2021-42279 and every CVE in our database. Create a free account — no credit card required.

Create Free Account
Plain-language analysis
Impact assessment and exploitation scenario in plain English
Attack graph visualization
Interactive attack path and kill chain mapping
Exploit details & PoC links
ExploitDB, Metasploit, GitHub PoCs with direct links
Nuclei scanner templates
Ready-to-use vulnerability scanner templates
Full remediation guide
Patch instructions, workarounds, and compliance impact
Interactive AI chat
Ask questions about this vulnerability in natural language
Related vulnerabilities
Semantically similar CVEs and attack patterns
REST API & MCP access
Integrate vulnerability data into your workflows