Which products and versions are affected by CVE-2018-0934?

Affected: Chakracore (Microsoft); Edge (Microsoft); Microsoft.ChakraCore (nuget), among others. The full list is in the CVE brief.

Is CVE-2018-0934 being exploited in the wild?

It is not listed in any known-exploited vulnerabilities catalog.

Is CVE-2018-0934 in the CISA KEV catalog?

No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.

Is there a public exploit for CVE-2018-0934?

Public exploit code is available.

Is there a fix for CVE-2018-0934?

Fixed versions are available, including Chakracore 1.8.2, Microsoft.ChakraCore 1.8.2.

How urgently should CVE-2018-0934 be patched?

Brandefense priority: patch immediately, because it is very likely to be exploited soon.

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Vulnerability Intelligence

CVE-2018-0934

HighPublic exploit

ChakraCore RCE Vulnerability

Published May 13, 2022 · Updated Aug 27, 2026 · Also known as GHSA-phcc-frh9-q545

Key Facts

Patch immediately

CVE-2018-0934 is a high-severity vulnerability (CVSS 7.5 v3.1) affecting Chakracore (Microsoft), Edge (Microsoft), Microsoft.ChakraCore (nuget) and 1 more product.
It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
EPSS estimates a 66% probability of exploitation in the next 30 days.
Fixed versions are available, including Chakracore 1.8.2, Microsoft.ChakraCore 1.8.2.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.

CVSS v3.1

7.5

CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS (30-day exploit likelihood)

66%

Higher than 99.2% of all scored CVEs

Exploited in the wild

No known

Not in a known-exploited catalog

Public exploit code

Available

Proof-of-concept or weaponized module

Get the full CVE-2018-0934 brief as a PDF

Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.

Description

ChakraCore and Microsoft Windows 10 Gold, 1511, 1607, 1703, 1709, and Windows Server 2016 allows remote code execution, due to how the Chakra scripting engine handles objects in memory, aka "Chakra Scripting Engine Memory Corruption Vulnerability". This CVE ID is unique from CVE-2018-0872, CVE-2018-0873, CVE-2018-0874, CVE-2018-0930, CVE-2018-0931, CVE-2018-0933, CVE-2018-0936, and CVE-2018-0937.

Affected Products

4 affected entries in total

Product	Affected versions	Fixed in
ChakracoreMicrosoft	See advisory	1.8.2
EdgeMicrosoft	See advisory	n/a
Microsoft.ChakraCorenuget	See advisory	1.8.2
ChakraCore, Microsoft Edge	>= ChakraCore, Microsoft Windows 10 Gold, 1511, 1607, 1703, 1709, and Windows Server 2016.	n/a

Patched Releases

Chakracore

1.8.2

Microsoft.ChakraCore

1.8.2

Timeline

Publicly disclosed
May 13, 2022
Last updated
Aug 27, 2026

Weakness Type

CWE-755 Improper Handling of Exceptional Conditions
CWE-787 Out-of-bounds Write

References

advisoryGHSA advisory
advisoryhttps://nvd.nist.gov/vuln/detail/CVE-2018-0934
advisory103275
advisory1040507
exploit44396

8 more references in the full CVE brief

FAQ

Common Questions.

ChakraCore and Microsoft Windows 10 Gold, 1511, 1607, 1703, 1709, and Windows Server 2016 allows remote code execution, due to how the Chakra scripting engine handles objects in memory, aka "Chakra Scripting Engine Memory Corruption Vulnerability".
Affected: Chakracore (Microsoft); Edge (Microsoft); Microsoft.ChakraCore (nuget), among others. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including Chakracore 1.8.2, Microsoft.ChakraCore 1.8.2.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.

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