ChakraCore Security Bypass

Also known as GHSA-wg47-6cqc-q52j

Published 8 y ago 2018-07-11 · modified 4 mo ago 2026-06-17 · JSON

CVSS

6.5

v3.0 · NVD

CISA KEV

not known exploited

EPSS

5.8%

percentile 93%

Public exploits

none known

A security feature bypass vulnerability exists in the Microsoft Chakra scripting engine that allows Control Flow Guard (CFG) to be bypassed, aka "Scripting Engine Security Feature Bypass Vulnerability." This affects Microsoft Edge, ChakraCore.

Exploit prediction (EPSS)

5.77% probability of exploitation in the next 30 days, higher than 93% of all scored CVEs.

CVSS scores

Assigned by	Version	Score	Vector
NVD	3.0	6.5	`CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N`
NVD	2.0	4.3	`AV:N/AC:M/Au:N/C:N/I:P/A:N`
GitHub	3.0	6.5	`CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N`

Affected packages

Ecosystem	Package	Affected	Fixed in
nuget	`Microsoft.ChakraCore`	<1.10.1	1.10.1

Affected products

Microsoft Microsoft Edge
Microsoft ChakraCore

References

securitytracker.com /id/1041256 · vdb-entry, x_refsource_SECTRACK, x_transferred
securityfocus.com /bid/104626 · vdb-entry, x_refsource_BID, x_transferred
portal.msrc.microsoft.com /en-US/security-guidance/advisory/CVE-2018-8276 · x_refsource_CONFIRM, x_transferred
nvd.nist.gov /vuln/detail/CVE-2018-8276 · advisory
github.com /chakra-core/ChakraCore/commit/4196f8097afdcc5fe01ce2966871712fb24003a3 · web
github.com /chakra-core/ChakraCore · package
web.archive.org /web/20210124183457/http://www.securityfocus.com/bid/104626 · web
web.archive.org /web/20211202002348/http://www.securitytracker.com/id/1041256 · web

Sources

CVE List: CVE-2018-8276
GitHub Advisory: GHSA-wg47-6cqc-q52j
NVD: CVE-2018-8276

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.