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Vulnerability details: VCID-hxe1-rzwm-5fak
Vulnerability ID VCID-hxe1-rzwm-5fak
Aliases CVE-2018-0979
GHSA-25vh-gq6v-hrx5
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-2018-0980, CVE-2018-0990, CVE-2018-0993, CVE-2018-0994, CVE-2018-0995, CVE-2018-1019.
Status Published
Exploitability None
Weighted Severity None
Risk None
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 0.22672 https://api.first.org/data/v1/epss?cve=CVE-2018-0979
cvssv3.1_qr HIGH https://github.com/advisories/GHSA-25vh-gq6v-hrx5
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/26371402f106e81797122f5b4bbd9f5e54bd2553
generic_textual HIGH https://github.com/chakra-core/ChakraCore/commit/26371402f106e81797122f5b4bbd9f5e54bd2553
cvssv3.1 7.5 https://nvd.nist.gov/vuln/detail/CVE-2018-0979
generic_textual HIGH https://nvd.nist.gov/vuln/detail/CVE-2018-0979
cvssv3.1 7.5 https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0979
generic_textual HIGH https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0979
cvssv3.1 7.5 https://web.archive.org/web/20210126222855/http://www.securityfocus.com/bid/103625
generic_textual HIGH https://web.archive.org/web/20210126222855/http://www.securityfocus.com/bid/103625
cvssv3.1 7.5 https://web.archive.org/web/20211207123630/http://www.securitytracker.com/id/1040650
generic_textual HIGH https://web.archive.org/web/20211207123630/http://www.securitytracker.com/id/1040650
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2018-0979
https://github.com/chakra-core/ChakraCore
https://github.com/chakra-core/ChakraCore/commit/26371402f106e81797122f5b4bbd9f5e54bd2553
https://web.archive.org/web/20210126222855/http://www.securityfocus.com/bid/103625
https://web.archive.org/web/20211207123630/http://www.securitytracker.com/id/1040650
CVE-2018-0979 https://nvd.nist.gov/vuln/detail/CVE-2018-0979
CVE-2018-0979 https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0979
GHSA-25vh-gq6v-hrx5 https://github.com/advisories/GHSA-25vh-gq6v-hrx5
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/26371402f106e81797122f5b4bbd9f5e54bd2553
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-2018-0979
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-2018-0979
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/20210126222855/http://www.securityfocus.com/bid/103625
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/20211207123630/http://www.securitytracker.com/id/1040650
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 0.95959
EPSS Score 0.22672
Published At May 30, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-05-30T20:58:40.407809+00:00 GitLab Importer Import https://gitlab.com/gitlab-org/advisories-community/-/blob/main/nuget/Microsoft.ChakraCore/CVE-2018-0979.yml 38.6.0