CVE-2018-8291 in the critical feed json
ChakraCore RCE Vulnerability
published 2018-07-11 8 y ago modified 2026-06-17 4 mo ago also GHSA-j67m-wpv6-pv44 , EUVD-2022-4288
- cvss
- 7.5
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 69.2%
- EPSS 69.2% chance of exploitation in 30 days, percentile 99.3%
- public exploits
- 1
- Exploit-DB
Summary
A remote code execution vulnerability exists in the way the scripting engine handles objects in memory in Microsoft browsers, aka "Scripting Engine Memory Corruption Vulnerability." This affects ChakraCore, Internet Explorer 11, Microsoft Edge. This CVE ID is unique from CVE-2018-8242, CVE-2018-8283, CVE-2018-8287, CVE-2018-8288, CVE-2018-8296, CVE-2018-8298.
Patch / fix
- nuget Microsoft.ChakraCore 1.10.1
- microsoft chakracore 1.10.1
Timeline
- Published
- First public exploit (EDB-45215)
Exploit prediction
69.22% chance of exploitation in the next 30 days, higher than 99.3% of all scored CVEs (FIRST EPSS, 2026-11-09).
Exploits and checks
- EDB-45215 Microsoft Edge Chakra JIT - 'DictionaryPropertyDescriptor::CopyFrom' Type Confusion dos, 2018-08-17
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 | <1.10.1 |
1.10.1 |
Affected products
- Microsoft ChakraCore
- Microsoft Internet Explorer 11
- Microsoft Microsoft Edge
Classification
- Weakness
-
- CWE-843 Access of Resource Using Incompatible Type
References
-
portal.msrc.microsoft.com
/en-US/security-guidance/advisory/CVE-2018-8291
web, patch, vendor-advisory
-
github.com
/chakra-core/ChakraCore/pull/5444
web
-
github.com
/chakra-core/ChakraCore/commit/c322694178ece209b0aa73eafd97a036def86eb1
web
-
exploit-db.com
/exploits/45215/
exploit, third-party-advisory, vdb-entry
-
securityfocus.com
/bid/104637
vdb-entry, third-party-advisory
-
securitytracker.com
/id/1041256
vdb-entry, third-party-advisory
-
securitytracker.com
/id/1041258
vdb-entry, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2018-8291
advisory
-
github.com
/chakra-core/ChakraCore
package
-
web.archive.org
/web/20210124183732/http://www.securityfocus.com/bid/104637
web
-
web.archive.org
/web/20210515050150/http://www.securitytracker.com/id/1041258
web
-
web.archive.org
/web/20211202002348/http://www.securitytracker.com/id/1041256
web
-
exploit-db.com
/exploits/45215
web
Sources
- CVE List CVE-2018-8291
- GitHub Advisory GHSA-j67m-wpv6-pv44
- NVD CVE-2018-8291
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.