Staging Environment: Content and features may be unstable or change without notice.
Search for vulnerabilities
Vulnerability details: VCID-367j-fhnf-dfbn
Vulnerability ID VCID-367j-fhnf-dfbn
Aliases CVE-2019-0639
GHSA-6jf5-rmhv-38cw
Summary Integer Overflow or Wraparound A remote code execution vulnerability exists in the way that the ChakraCore scripting engine handles objects in memory, aka 'Scripting Engine Memory Corruption Vulnerability'. This CVE ID is unique from CVE-2019-0609, CVE-2019-0680, CVE-2019-0769, CVE-2019-0770, CVE-2019-0771, CVE-2019-0773, CVE-2019-0783.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (4)
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
CWE-190 Integer Overflow or Wraparound
CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
epss 0.17995 https://api.first.org/data/v1/epss?cve=CVE-2019-0639
cvssv3.1 7.5 https://github.com/advisories/GHSA-6jf5-rmhv-38cw
generic_textual HIGH https://github.com/advisories/GHSA-6jf5-rmhv-38cw
cvssv3.1 7.5 https://nvd.nist.gov/vuln/detail/CVE-2019-0639
generic_textual HIGH https://nvd.nist.gov/vuln/detail/CVE-2019-0639
cvssv3.1 7.5 https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0639
generic_textual HIGH https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0639
cvssv3.1 7.5 https://www.zerodayinitiative.com/advisories/ZDI-20-122
generic_textual HIGH https://www.zerodayinitiative.com/advisories/ZDI-20-122
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2019-0639
https://www.zerodayinitiative.com/advisories/ZDI-20-122
https://www.zerodayinitiative.com/advisories/ZDI-20-122/
CVE-2019-0639 https://nvd.nist.gov/vuln/detail/CVE-2019-0639
CVE-2019-0639 https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0639
GHSA-6jf5-rmhv-38cw https://github.com/advisories/GHSA-6jf5-rmhv-38cw
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/advisories/GHSA-6jf5-rmhv-38cw
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-2019-0639
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-2019-0639
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.zerodayinitiative.com/advisories/ZDI-20-122
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 0.95281
EPSS Score 0.17995
Published At June 4, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-02T04:39:05.410208+00:00 GitLab Importer Import https://gitlab.com/gitlab-org/advisories-community/-/blob/main/nuget/Microsoft.ChakraCore/CVE-2019-0639.yml 38.6.0