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Vulnerability details: VCID-maq3-4mu9-3kaf
Vulnerability ID VCID-maq3-4mu9-3kaf
Aliases CVE-2019-0861
GHSA-qxmj-3c5h-546c
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 CVE ID is unique from CVE-2019-0806, CVE-2019-0810, CVE-2019-0812, CVE-2019-0829, CVE-2019-0860.
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 0.10453 https://api.first.org/data/v1/epss?cve=CVE-2019-0861
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/b481337f2ae6e92efd919692c6691996947f49ec
generic_textual HIGH https://github.com/chakra-core/ChakraCore/commit/b481337f2ae6e92efd919692c6691996947f49ec
cvssv3.1 7.5 https://github.com/chakra-core/ChakraCore/pull/6087
generic_textual HIGH https://github.com/chakra-core/ChakraCore/pull/6087
cvssv3.1 7.5 https://nvd.nist.gov/vuln/detail/CVE-2019-0861
generic_textual HIGH https://nvd.nist.gov/vuln/detail/CVE-2019-0861
cvssv3.1 7.5 https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0861
generic_textual HIGH https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0861
cvssv3.1 7.5 https://web.archive.org/web/20210125022152/http://www.securityfocus.com/bid/107724
generic_textual HIGH https://web.archive.org/web/20210125022152/http://www.securityfocus.com/bid/107724
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2019-0861
https://github.com/chakra-core/ChakraCore
https://github.com/chakra-core/ChakraCore/commit/b481337f2ae6e92efd919692c6691996947f49ec
https://github.com/chakra-core/ChakraCore/pull/6087
https://web.archive.org/web/20210125022152/http://www.securityfocus.com/bid/107724
http://www.securityfocus.com/bid/107724
CVE-2019-0861 https://nvd.nist.gov/vuln/detail/CVE-2019-0861
CVE-2019-0861 https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0861
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/b481337f2ae6e92efd919692c6691996947f49ec
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/6087
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-2019-0861
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-2019-0861
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/20210125022152/http://www.securityfocus.com/bid/107724
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 0.93367
EPSS Score 0.10453
Published At June 4, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-02T04:39:05.767032+00:00 GitLab Importer Import https://gitlab.com/gitlab-org/advisories-community/-/blob/main/nuget/Microsoft.ChakraCore/CVE-2019-0861.yml 38.6.0