Out-of-bounds write in ChakraCore

HIGH 7.5CVE-2020-0830 · GHSA-g644-6fg4-hrh9 · Published 12/03/2020 · updated 17/06/2026

In short

CVE-2020-0830 is a HIGH (CVSS 7.5) vulnerability affecting Microsoft.ChakraCore, chakracore (microsoft), internet explorer (microsoft).
Chance of exploitation in the next 30 days (EPSS): 8.7%, higher than 95.2% of all vulnerabilities.
Fix: update to 1.11.17 or later.

Package	Affected versions	Patched versions
Microsoft.ChakraCore NuGet	`< 1.11.17`	`1.11.17`
chakracore microsoft	`< 1.11.17`	`1.11.17`
internet explorer microsoft	`= 11`	No fix yet

Description

A remote code execution vulnerability exists in the way the scripting engine handles objects in memory in Microsoft browsers, aka 'Scripting Engine Memory Corruption Vulnerability'. This CVE ID is unique from CVE-2020-0768, CVE-2020-0823, CVE-2020-0825, CVE-2020-0826, CVE-2020-0827, CVE-2020-0828, CVE-2020-0829, CVE-2020-0831, CVE-2020-0832, CVE-2020-0833, CVE-2020-0848.

NVD description

References

nvd.nist.gov/vuln/detail/CVE-2020-0830 · ADVISORY
portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0830 · WEB

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Package

Affected versions

Patched versions

Microsoft.ChakraCore

NuGet

< 1.11.17

1.11.17

chakracore

microsoft

< 1.11.17

1.11.17

internet explorer

microsoft

= 11

No fix yet

Description

NVD description

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