Out-of-bounds write in Microsoft ChakraCore
Priority MEDIUM 49CWE-787Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- High
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA and GitHub. Impact type from CWE-787 and the CVSS impact.
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 ChakraCore. This CVE ID is unique from CVE-2018-8353, CVE-2018-8355, CVE-2018-8371, CVE-2018-8372, CVE-2018-8373, CVE-2018-8385, CVE-2018-8389, CVE-2018-8390.
Why it matters now
EPSS 0.1545 96th percentileScored 2026-11-07
Fix Fixed Microsoft.ChakraCore (NuGet): 1.10.2
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Microsoft | ChakraCore | ChakraCore | — | No fix listed | CNA |
| — | Microsoft.ChakraCore (NuGet) | before 1.10.2 | 1.10.2 | Patch available | GHSA-38r7-rv5p-ggwq |
- ChakraCore VendorMicrosoft Affected ChakraCore Fixed in — No fix listed CNA
- Microsoft.ChakraCore (NuGet) Vendor— Affected before 1.10.2 Fixed in 1.10.2 Patch available GHSA-38r7-rv5p-ggwq
Remediation
- Fix · GHSA-38r7-rv5p-ggwq Microsoft.ChakraCore (NuGet) Fixed in 1.10.2 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2018-8359
- 2026-10-03 Alias added: GHSA-38r7-rv5p-ggwq
References
Other 5
- https://github.com/chakra-core/ChakraCore/pull/5596
- https://github.com/chakra-core/ChakraCore/commit/f8bdb180c4e9351f441e25dc818815d0c63af753
- https://github.com/chakra-core/ChakraCore
- https://web.archive.org/web/20210421013802/http://www.securityfocus.com/bid/104990
- https://web.archive.org/web/20211203061111/http://www.securitytracker.com/id/1041457
More Microsoft Chakracore vulnerabilities
- TI-2020-00848 Microsoft Browser Memory Corruption Vulnerability KEVCVSS 3.1HIGH 7.5
- TI-2018-06000 Type confusion in Microsoft ChakraCore KEVCVSS 3.1HIGH 7.5
- TI-2019-00333 Out-of-bounds write in Microsoft Edge CVSS 3.0HIGH 7.5
- TI-2019-00359 Out-of-bounds write in Microsoft Edge CVSS 3.0HIGH 7.5
- TI-2018-00721 Out-of-bounds write in Microsoft Edge CVSS 3.0HIGH 7.5
- TI-2018-00720 Out-of-bounds write in Microsoft Edge CVSS 3.0HIGH 7.5
Sources
- CVE-2018-8359 · CVE Program
- CVE-2018-8359 · NVD
- FIRST EPSS
- GHSA-38r7-rv5p-ggwq · GitHub Advisory Database · CC BY 4.0
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