CVE-2018-8456 in the critical feed json
ChakraCore RCE Vulnerability
published 8y ago modified 4mo ago also GHSA-6xmv-mx7q-789r , EUVD-2022-2878
- cvss
- 7.5
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 14.9%
- EPSS 14.9% 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 ChakraCore scripting engine handles objects in memory, aka "Scripting Engine Memory Corruption Vulnerability." This affects Microsoft Edge, ChakraCore. This CVE ID is unique from CVE-2018-8354, CVE-2018-8391, CVE-2018-8457, CVE-2018-8459.
Patch / fix
- nuget Microsoft.ChakraCore 1.11.1
Is CVE-2018-8456 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerExploit prediction
14.95% 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 | <1.11.1 |
1.11.1 |
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-2018-8456
web, patch, vendor-advisory
-
github.com
/chakra-core/ChakraCore/pull/5688
web
-
github.com
/chakra-core/ChakraCore/commit/98360625854f84262ce8de59a7f57496393281f3
web
-
securitytracker.com
/id/1041623
vdb-entry, third-party-advisory
-
securityfocus.com
/bid/105227
vdb-entry, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2018-8456
advisory
-
github.com
/chakra-core/ChakraCore
package
-
web.archive.org
/web/20210124202635/http://www.securityfocus.com/bid/105227
web
-
web.archive.org
/web/20210517133345/http://www.securitytracker.com/id/1041623
web
Sources
- CVE List CVE-2018-8456
- GitHub Advisory GHSA-6xmv-mx7q-789r
- NVD CVE-2018-8456
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.