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Vulnerability details: VCID-w771-z7gh-sudd
Vulnerability ID VCID-w771-z7gh-sudd
Aliases CVE-2019-1062
GHSA-rh4p-g7x6-8pqg
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-2019-1092, CVE-2019-1103, CVE-2019-1106, CVE-2019-1107.
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 0.04748 https://api.first.org/data/v1/epss?cve=CVE-2019-1062
cvssv3.1 7.5 https://github.com/chakra-core/ChakraCore/commit/75162b7f2d8ac2b37d17564e9c979ba1bae707e8
generic_textual HIGH https://github.com/chakra-core/ChakraCore/commit/75162b7f2d8ac2b37d17564e9c979ba1bae707e8
cvssv3.1 7.5 https://github.com/chakra-core/ChakraCore/commit/7f0d390ad77d838cbb81d4586c83ec822f384ce8
generic_textual HIGH https://github.com/chakra-core/ChakraCore/commit/7f0d390ad77d838cbb81d4586c83ec822f384ce8
cvssv3.1 7.5 https://nvd.nist.gov/vuln/detail/CVE-2019-1062
generic_textual HIGH https://nvd.nist.gov/vuln/detail/CVE-2019-1062
cvssv3.1 7.5 https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1062
generic_textual HIGH https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1062
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2019-1062
https://github.com/chakra-core/ChakraCore/commit/75162b7f2d8ac2b37d17564e9c979ba1bae707e8
https://github.com/chakra-core/ChakraCore/commit/7f0d390ad77d838cbb81d4586c83ec822f384ce8
CVE-2019-1062 https://nvd.nist.gov/vuln/detail/CVE-2019-1062
CVE-2019-1062 https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1062
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/75162b7f2d8ac2b37d17564e9c979ba1bae707e8
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/7f0d390ad77d838cbb81d4586c83ec822f384ce8
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-2019-1062
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-2019-1062
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 0.89615
EPSS Score 0.04748
Published At June 4, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-04T16:19:29.836488+00:00 GitLab Importer Import https://gitlab.com/gitlab-org/advisories-community/-/blob/main/nuget/Microsoft.ChakraCore/CVE-2019-1062.yml 38.6.0