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Vulnerability details: VCID-x99r-qvdv-t3hz
Vulnerability ID VCID-x99r-qvdv-t3hz
Aliases CVE-2018-0838
GHSA-j762-mr2c-fmp9
Summary Out-of-bounds Write Microsoft Edge and ChakraCore in Microsoft Windows Gold, and Windows Server allows remote code execution, due to how the scripting engine handles objects in memory, aka "Scripting Engine Memory Corruption Vulnerability". This CVE ID is unique from CVE-2018-0834, CVE-2018-0835, CVE-2018-0836, CVE-2018-0837, CVE-2018-0840, CVE-2018-0856, CVE-2018-0857, CVE-2018-0858, CVE-2018-0859, CVE-2018-0860, CVE-2018-0861, and CVE-2018-0866.
Status Published
Exploitability None
Weighted Severity None
Risk None
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
CWE-787 Out-of-bounds Write
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
epss 0.79299 https://api.first.org/data/v1/epss?cve=CVE-2018-0838
cvssv3.1_qr HIGH https://github.com/advisories/GHSA-j762-mr2c-fmp9
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2018-0838
https://github.com/chakra-core/ChakraCore/commit/f82e7b4e561494a9ad79f2fe5c5aadcdf6ccce33
https://web.archive.org/web/20210124135716/http://www.securityfocus.com/bid/102877
https://web.archive.org/web/20211208072939/http://www.securitytracker.com/id/1040372
https://www.exploit-db.com/exploits/44080/
http://www.securityfocus.com/bid/102877
http://www.securitytracker.com/id/1040372
CVE-2018-0838 Exploit https://bugs.chromium.org/p/project-zero/issues/detail?id=1463&desc=3
CVE-2018-0838 Exploit https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/windows/dos/44080.js
CVE-2018-0838 https://nvd.nist.gov/vuln/detail/CVE-2018-0838
CVE-2018-0838 https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0838
GHSA-j762-mr2c-fmp9 https://github.com/advisories/GHSA-j762-mr2c-fmp9
Data source Exploit-DB
Date added Feb. 15, 2018
Description Microsoft Edge Chakra JIT - 'NewScObjectNoCtor' Array Type Confusion
Ransomware campaign use Known
Source publication date Feb. 15, 2018
Exploit type dos
Platform windows
Source update date Feb. 15, 2018
Source URL https://bugs.chromium.org/p/project-zero/issues/detail?id=1463&desc=3
Exploit Prediction Scoring System (EPSS)
Percentile 0.99095
EPSS Score 0.79299
Published At May 30, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-05-30T20:53:25.391156+00:00 GitLab Importer Import https://gitlab.com/gitlab-org/advisories-community/-/blob/main/nuget/Microsoft.ChakraCore/CVE-2018-0838.yml 38.6.0