CVE-2018-8355 in the critical feed json
ChakraCore RCE Vulnerability
published 2018-08-15 8 y ago modified 2026-06-17 4 mo ago also GHSA-h8jq-5737-hpcf , EUVD-2022-4108
- cvss
- 7.5
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 67.9%
- EPSS 67.9% 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-2018-8353, CVE-2018-8359, CVE-2018-8371, CVE-2018-8372, CVE-2018-8373, CVE-2018-8385, CVE-2018-8389, CVE-2018-8390.
Patch / fix
- nuget Microsoft.ChakraCore 1.10.2
Timeline
- Published
- First public exploit (EDB-45432)
Exploit prediction
67.90% 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-45432 Microsoft Edge Chakra JIT - 'localeCompare' Type Confusion dos, 2018-09-18
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 | <1.10.2 |
1.10.2 |
Affected products
- Microsoft ChakraCore
- Microsoft Internet Explorer 11
- Microsoft Microsoft Edge
Classification
- Weakness
-
- CWE-787 Out-of-bounds Write
References
-
portal.msrc.microsoft.com
/en-US/security-guidance/advisory/CVE-2018-8355
web, patch, vendor-advisory
-
github.com
/chakra-core/ChakraCore/pull/5596
web
-
github.com
/chakra-core/ChakraCore/commit/cf3ef506236da5b7651f4785966ab3131a4aa083
web
-
exploit-db.com
/exploits/45432/
exploit, third-party-advisory, vdb-entry
-
securitytracker.com
/id/1041457
vdb-entry, third-party-advisory
-
securityfocus.com
/bid/104978
vdb-entry, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2018-8355
advisory
-
github.com
/chakra-core/ChakraCore
package
-
web.archive.org
/web/20210614055406/http://www.securityfocus.com/bid/104978
web
-
web.archive.org
/web/20211203061111/http://www.securitytracker.com/id/1041457
web
-
exploit-db.com
/exploits/45432
web
Sources
- CVE List CVE-2018-8355
- GitHub Advisory GHSA-h8jq-5737-hpcf
- NVD CVE-2018-8355
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.