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Vulnerability details: VCID-3nr2-txtn-eye8
Vulnerability ID VCID-3nr2-txtn-eye8
Aliases CVE-2018-8229
GHSA-jv5x-p843-g4qr
Summary Access of Resource Using Incompatible Type ('Type Confusion') 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-2018-8227.
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-843 Access of Resource Using Incompatible Type ('Type Confusion')
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
epss 0.79916 https://api.first.org/data/v1/epss?cve=CVE-2018-8229
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/9b270c55bfea2fbefc9482d3414c4b4b395cad10
generic_textual HIGH https://github.com/chakra-core/ChakraCore/commit/9b270c55bfea2fbefc9482d3414c4b4b395cad10
cvssv3.1 7.5 https://nvd.nist.gov/vuln/detail/CVE-2018-8229
generic_textual HIGH https://nvd.nist.gov/vuln/detail/CVE-2018-8229
cvssv3.1 7.5 https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8229
generic_textual HIGH https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8229
cvssv3.1 7.5 https://web.archive.org/web/20210124174715/http://www.securityfocus.com/bid/104369
generic_textual HIGH https://web.archive.org/web/20210124174715/http://www.securityfocus.com/bid/104369
cvssv3.1 7.5 https://web.archive.org/web/20210927135934/http://www.securitytracker.com/id/1041097
generic_textual HIGH https://web.archive.org/web/20210927135934/http://www.securitytracker.com/id/1041097
cvssv3.1 7.5 https://www.exploit-db.com/exploits/45013
generic_textual HIGH https://www.exploit-db.com/exploits/45013
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2018-8229
https://github.com/chakra-core/ChakraCore
https://github.com/chakra-core/ChakraCore/commit/9b270c55bfea2fbefc9482d3414c4b4b395cad10
https://web.archive.org/web/20210124174715/http://www.securityfocus.com/bid/104369
https://web.archive.org/web/20210927135934/http://www.securitytracker.com/id/1041097
https://www.exploit-db.com/exploits/45013
https://www.exploit-db.com/exploits/45013/
http://www.securityfocus.com/bid/104369
http://www.securitytracker.com/id/1041097
CVE-2018-8229 Exploit https://bugs.chromium.org/p/project-zero/issues/detail?id=1560
CVE-2018-8229 Exploit https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/windows/dos/45013.js
CVE-2018-8229 https://nvd.nist.gov/vuln/detail/CVE-2018-8229
CVE-2018-8229 https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8229
Data source Exploit-DB
Date added July 12, 2018
Description Microsoft Edge Chakra JIT - Type Confusion with Hoisted SetConcatStrMultiItemBE Instructions
Ransomware campaign use Known
Source publication date July 12, 2018
Exploit type dos
Platform windows
Source update date July 12, 2018
Source URL https://bugs.chromium.org/p/project-zero/issues/detail?id=1560
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/9b270c55bfea2fbefc9482d3414c4b4b395cad10
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-2018-8229
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-2018-8229
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/20210124174715/http://www.securityfocus.com/bid/104369
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/20210927135934/http://www.securitytracker.com/id/1041097
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://www.exploit-db.com/exploits/45013
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 0.99128
EPSS Score 0.79916
Published At June 4, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-02T04:37:55.861623+00:00 GitLab Importer Import https://gitlab.com/gitlab-org/advisories-community/-/blob/main/nuget/Microsoft.ChakraCore/CVE-2018-8229.yml 38.6.0