# CVE-2018-8298: ChakraCore Scripting Engine Type Confusion Vulnerability

> CVE-2018-8298: ChakraCore Scripting Engine Type Confusion Vulnerability. CVSS 7.5 (CVSS 3.1), in CISA KEV.

Canonical: https://rewindex.com/cve/CVE-2018-8298
Last updated: 2025-10-21T23:45:49Z

- Published: 2018-07-11 00:00 UTC · Updated: 2025-10-21 23:45 UTC · Assigner: microsoft
- CVSS: 7.5 (CVSS 3.1) · Severity: High · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS: 74.7%, 99th percentile (scored 2026-10-25)
- CISA KEV: yes, added 2022-03-03, federal due date 2022-03-17, ransomware use: Unknown

## Description

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-2018-8242, CVE-2018-8283, CVE-2018-8287, CVE-2018-8288, CVE-2018-8291, CVE-2018-8296.

## CISA required action

Apply updates per vendor instructions.

## Affected vendors and products

- Microsoft: ChakraCore

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2018-8298)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2018-8298)
- [https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8298](https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8298)
- [https://www.exploit-db.com/exploits/45217/](https://www.exploit-db.com/exploits/45217/)
- [http://www.securityfocus.com/bid/104639](http://www.securityfocus.com/bid/104639)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2018-8298 · Markdown: https://rewindex.com/cve/CVE-2018-8298.md · JSON: https://rewindex.com/api/v1/cves/CVE-2018-8298 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T01:59:17.885Z