CVE-2018-8298

KEVChakraCore Scripting Engine Type Confusion Vulnerability

Description

The ChakraCore scripting engine contains a type confusion vulnerability which can allow for remote code execution.

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.

CVSS 3.1 vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

PublishedJul 11, 2018

Last modifiedJun 17, 2026

Added to KEVMar 3, 2022

Remediation dueMar 17, 2022

References

securityfocus.com/bid/104639Broken LinkThird Party Advisory
portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8298PatchVendor Advisory
exploit-db.com/exploits/45217/ExploitThird Party Advisory
cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-8298US Government Resource

0 recent articles mention this CVE

Risk assessment · High

Actively exploited. Patch immediately.

Exploitation: Confirmed in the wild (CISA KEV)
Federal remediation deadline: Overdue by 1684 days
CVSS: 7.5 HIGH
EPSS (30-day exploit probability): 74.7% · top 1% of all CVEs
Weakness: CWE-843
Attack vector: Network, remotely reachable

Recommended actions

1.Apply updates per vendor instructions.
2.Treat as emergency change: patch or isolate internet-facing instances first.
3.Review exposure: confirm which instances are reachable from the internet and restrict access until patched.
4.Hunt for compromise: review logs for the disclosure window, not just from the patch date.

Assessment is derived automatically from the live signals above; verify against your own asset inventory.