CVE-2018-8542 in the critical feed json
ChakraCore RCE Vulnerability
published 2018-11-14 7 y ago modified 2026-06-17 4 mo ago also GHSA-hfhr-xxxq-vg7g , EUVD-2022-4134
- cvss
- 7.5
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 14.2%
- EPSS 14.2% chance of exploitation in 30 days, percentile 96%
- public exploits
- 0
- none known
Summary
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-2018-8541, CVE-2018-8543, CVE-2018-8551, CVE-2018-8555, CVE-2018-8556, CVE-2018-8557, CVE-2018-8588.
Patch / fix
- nuget Microsoft.ChakraCore 1.11.3
Exploit prediction
14.16% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 7.5 | CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.6 | AV:N/AC:H/Au:N/C:C/I:C/A:C |
| GitHub | 3.0 | 7.5 | CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| nuget | Microsoft.ChakraCore | <1.11.3 |
1.11.3 |
Affected products
- Microsoft Microsoft Edge
- Microsoft ChakraCore
Classification
- Weakness
-
- CWE-787 Out-of-bounds Write
References
-
portal.msrc.microsoft.com
/en-US/security-guidance/advisory/CVE-2018-8542
web, patch, vendor-advisory
-
github.com
/chakra-core/ChakraCore/pull/5827
web
-
github.com
/chakra-core/ChakraCore/commit/334471b7254c1c093deb413bac0472974e6f9181
web
-
securityfocus.com
/bid/105772
vdb-entry, third-party-advisory
-
securitytracker.com
/id/1042107
vdb-entry, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2018-8542
advisory
-
github.com
/chakra-core/ChakraCore
package
-
web.archive.org
/web/20210124213906/http://www.securityfocus.com/bid/105772
web
-
web.archive.org
/web/20211126224439/http://www.securitytracker.com/id/1042107
web
Sources
- CVE List CVE-2018-8542
- GitHub Advisory GHSA-hfhr-xxxq-vg7g
- NVD CVE-2018-8542
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.