Is CVE-2018-8298 in the CISA KEV catalog?

Yes. CVE-2018-8298 is on the CISA Known Exploited Vulnerabilities list, added 2022-03-03.

What is the CVSS severity of CVE-2018-8298?

CVE-2018-8298 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2018-8298?

CVE-2018-8298 has an EPSS score of 75.34% (99th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2018-8298?

Upgrade chakracore to 1.10.1 or later.

CVE & CISA-KEV Catalog

CVE-2018-8298

HIGHCISA KEVEPSS 99th pctl

7.5

CVSS v3

NVD

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.

CWE-843Type Confusion

How to fix

Remediation Available

chakracoreNVD

Affected:< 1.10.1Fixed in:1.10.1CVE-2018-8298derived from NVD

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

75.34%probability of exploitation in 30 days

99thpercentile

Very high risk: more likely to be exploited than 99% of all known CVEs.

Known Exploited Vulnerability (CISA KEV)

ChakraCore Scripting Engine Type Confusion Vulnerability

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

Apply updates per vendor instructions.

Remediation due: 2022-03-17

References

Patch1

portal.msrc.microsoft.com

Exploit1

exploit-db.com

Third-Party Advisory1

securityfocus.com

Government Resource1

cisa.gov

Related Vulnerabilities

Other CWE-843 (Type Confusion) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2011-0611	High	8.8	99%	KEV	Fix
CVE-2012-0507	Critical	9.8	98%	KEV + Ransom	-
CVE-2017-8291	High	7.8	97%	KEV	Fix
CVE-2019-0752	High	7.5	82%	KEV + Ransom	-
CVE-2017-0037	High	8.1	80%	KEV	-
CVE-2016-7201	High	8.8	80%	KEV	-

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-10-28.