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Vulnerability details: VCID-ujae-c7gz-rqgu
Vulnerability ID VCID-ujae-c7gz-rqgu
Aliases CVE-2018-8624
GHSA-2xrc-27mc-638q
Summary Out-of-bounds Write A remote code execution vulnerability exists in the way that the Chakra scripting engine handles objects in memory in Microsoft Edge, aka "Chakra Scripting Engine Memory Corruption Vulnerability." This affects Microsoft Edge, ChakraCore. This CVE ID is unique from CVE-2018-8583, CVE-2018-8617, CVE-2018-8618, CVE-2018-8629.
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 0.19249 https://api.first.org/data/v1/epss?cve=CVE-2018-8624
cvssv3.1 7.5 https://github.com/chakra-core/ChakraCore/commit/8264b9bcdb08daf4309415319c7a8e03d1736dce
generic_textual HIGH https://github.com/chakra-core/ChakraCore/commit/8264b9bcdb08daf4309415319c7a8e03d1736dce
cvssv3.1 7.5 https://github.com/chakra-core/ChakraCore/pull/5869
generic_textual HIGH https://github.com/chakra-core/ChakraCore/pull/5869
cvssv3.1 7.5 https://github.com/Microsoft/ChakraCore/wiki/Roadmap#v1114
generic_textual HIGH https://github.com/Microsoft/ChakraCore/wiki/Roadmap#v1114
cvssv3.1 7.5 https://nvd.nist.gov/vuln/detail/CVE-2018-8624
generic_textual HIGH https://nvd.nist.gov/vuln/detail/CVE-2018-8624
cvssv3.1 7.5 https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8624
generic_textual HIGH https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8624
cvssv3.1 7.5 https://web.archive.org/web/20210124222846/http://www.securityfocus.com/bid/106114
generic_textual HIGH https://web.archive.org/web/20210124222846/http://www.securityfocus.com/bid/106114
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2018-8624
https://github.com/chakra-core/ChakraCore/commit/8264b9bcdb08daf4309415319c7a8e03d1736dce
https://github.com/chakra-core/ChakraCore/pull/5869
https://github.com/Microsoft/ChakraCore/wiki/Roadmap#v1114
https://web.archive.org/web/20210124222846/http://www.securityfocus.com/bid/106114
http://www.securityfocus.com/bid/106114
CVE-2018-8624 https://nvd.nist.gov/vuln/detail/CVE-2018-8624
CVE-2018-8624 https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8624
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/commit/8264b9bcdb08daf4309415319c7a8e03d1736dce
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/pull/5869
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/Microsoft/ChakraCore/wiki/Roadmap#v1114
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-2018-8624
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-2018-8624
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/20210124222846/http://www.securityfocus.com/bid/106114
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 0.95483
EPSS Score 0.19249
Published At June 4, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-02T04:38:40.583329+00:00 GitLab Importer Import https://gitlab.com/gitlab-org/advisories-community/-/blob/main/nuget/Microsoft.ChakraCore/CVE-2018-8624.yml 38.6.0