ChakraCore RCE Vulnerability

published 2018-03-14 8 y ago modified 2026-06-17 4 mo ago also GHSA-phcc-frh9-q545 , EUVD-2022-4772

cvss: 7.5; version 3.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 66.2%; EPSS 66.2% chance of exploitation in 30 days, percentile 99.2%
public exploits: 2; Exploit-DB

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.

Patch / fix

fixed in 2 links 2

nuget Microsoft.ChakraCore 1.8.2
microsoft chakracore 1.8.2

Timeline

2018-03-14 Published
2018-04-03 First public exploit (EDB-44397)

Exploit prediction

66.23% chance of exploitation in the next 30 days, higher than 99.2% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

EDB-44397 Microsoft Edge Chakra JIT - Stack-to-Heap Copy (Incomplete Fix) (2) dos, 2018-04-03
EDB-44396 Microsoft Edge Chakra JIT - Stack-to-Heap Copy (Incomplete Fix) (1) dos, 2018-04-03

CVSS scores

assigned by	version	score	vector
NVD	3.0	7.5	CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD	2.0	7.6	AV:N/AC:H/Au:N/C:C/I:C/A:C
GitHub	3.0	7.5	CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected packages

ecosystem	package	affected	fixed in
nuget	Microsoft.ChakraCore	<1.8.2	1.8.2

Affected products

Microsoft Corporation ChakraCore, Microsoft Edge

Classification

Weakness

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

References

portal.msrc.microsoft.com /en-US/security-guidance/advisory/CVE-2018-0934
web, patch, vendor-advisory
github.com /chakra-core/ChakraCore/commit/6d0f5de1e0331fd6dd4f1ee0c0032430bcb131c3
web
exploit-db.com /exploits/44397/
exploit, third-party-advisory, vdb-entry
exploit-db.com /exploits/44396/
exploit, third-party-advisory, vdb-entry
securitytracker.com /id/1040507
vdb-entry, third-party-advisory
securityfocus.com /bid/103275
vdb-entry, third-party-advisory
nvd.nist.gov /vuln/detail/CVE-2018-0934
advisory
github.com /chakra-core/ChakraCore
package
web.archive.org /web/20210125205549/http://www.securityfocus.com/bid/103275
web
web.archive.org /web/20211026192005/http://www.securitytracker.com/id/1040507
web
exploit-db.com /exploits/44396
web
exploit-db.com /exploits/44397
web

Sources

CVE List CVE-2018-0934
GitHub Advisory GHSA-phcc-frh9-q545
NVD CVE-2018-0934

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary