CVE-2018-8298

Name: CVE-2018-8298
Creator: NVD / NIST
Published: 2018-07-11T00:29:01.663+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10Actively ExploitedEPSS 75.34%

Last modified Jun 17, 2026

CVE-2018-8298 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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 has confirmed active exploitation in the wild. EPSS estimates a 75.34% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

75.34%

99.5th percentile

Probability of exploitation in the next 30 days. Learn more

Exploitation Status

This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by Mar 17, 2022.

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Microsoft	Chakracore	< 1.10.1

References

http://www.securityfocus.com/bid/104639Broken Link, Third Party Advisory, VDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8298Patch, Vendor Advisory
https://www.exploit-db.com/exploits/45217/Exploit, Third Party Advisory, VDB Entry
http://www.securityfocus.com/bid/104639Broken Link, Third Party Advisory, VDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8298Patch, Vendor Advisory
https://www.exploit-db.com/exploits/45217/Exploit, Third Party Advisory, VDB Entry
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-8298US Government Resource

Timeline

Published: Jul 11, 2018
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2018-8298?

How severe is CVE-2018-8298?

CVE-2018-8298 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 75.34% probability of exploitation in the next 30 days. This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog.

How do I fix CVE-2018-8298?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-8298?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST