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Vulnerability details: VCID-rtm9-vhf2-zfa8
Vulnerability ID VCID-rtm9-vhf2-zfa8
Aliases CVE-2018-0930
GHSA-wc4x-9h9p-9494
Summary Out-of-bounds Write ChakraCore and Microsoft Edge in Microsoft Windows 10 1709 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-2018-0931, CVE-2018-0933, CVE-2018-0934, CVE-2018-0936, and CVE-2018-0937.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (4)
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CWE-787 Out-of-bounds Write
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
epss 0.26113 https://api.first.org/data/v1/epss?cve=CVE-2018-0930
epss 0.26113 https://api.first.org/data/v1/epss?cve=CVE-2018-0930
epss 0.26113 https://api.first.org/data/v1/epss?cve=CVE-2018-0930
cvssv3.1_qr HIGH https://github.com/advisories/GHSA-wc4x-9h9p-9494
cvssv3.1 7.5 https://github.com/chakra-core/ChakraCore
generic_textual HIGH https://github.com/chakra-core/ChakraCore
cvssv3.1 7.5 https://github.com/chakra-core/ChakraCore/commit/2021bcb122607abef578ef444419e4ba0a9777be
generic_textual HIGH https://github.com/chakra-core/ChakraCore/commit/2021bcb122607abef578ef444419e4ba0a9777be
cvssv3.1 7.5 https://nvd.nist.gov/vuln/detail/CVE-2018-0930
generic_textual HIGH https://nvd.nist.gov/vuln/detail/CVE-2018-0930
cvssv3.1 7.5 https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0930
generic_textual HIGH https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0930
cvssv3.1 7.5 https://web.archive.org/web/20210124144710/http://www.securityfocus.com/bid/103272
generic_textual HIGH https://web.archive.org/web/20210124144710/http://www.securityfocus.com/bid/103272
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2018-0930
https://github.com/chakra-core/ChakraCore
https://github.com/chakra-core/ChakraCore/commit/2021bcb122607abef578ef444419e4ba0a9777be
https://web.archive.org/web/20210124144710/http://www.securityfocus.com/bid/103272
CVE-2018-0930 https://nvd.nist.gov/vuln/detail/CVE-2018-0930
CVE-2018-0930 https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0930
GHSA-wc4x-9h9p-9494 https://github.com/advisories/GHSA-wc4x-9h9p-9494
No exploits are available.
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://github.com/chakra-core/ChakraCore
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://github.com/chakra-core/ChakraCore/commit/2021bcb122607abef578ef444419e4ba0a9777be
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2018-0930
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0930
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://web.archive.org/web/20210124144710/http://www.securityfocus.com/bid/103272
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.96388
EPSS Score 0.26113
Published At June 4, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-02T04:42:51.493167+00:00 GitLab Importer Import https://gitlab.com/gitlab-org/advisories-community/-/blob/main/nuget/Microsoft.ChakraCore/CVE-2018-0930.yml 38.6.0