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CVE-2018-8298

ChakraCore Scripting Engine Type Confusion

7.5 HIGHActively exploited (CISA KEV)Public exploitEPSS 74.7%
  1. Published10 Jul 2018
  2. Added to CISA KEV3 Mar 2022
  3. Remediation due17 Mar 2022
Actively exploited (CISA KEV)

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

Added to KEV: 3 Mar 2022Federal remediation due: 17 Mar 2022

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.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityHigh
Privileges requiredNone
User interactionRequired
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

Microsoft Chakracore< 1.10.1

Remediation

Fixed in
Microsoft Chakracore≥ 1.10.1

References

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Frequently asked

Is CVE-2018-8298 being actively exploited?

Yes. CVE-2018-8298 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 3 Mar 2022.

How severe is CVE-2018-8298?

CVE-2018-8298 has a CVSS 3.1 base score of 7.5, rated high. EPSS estimates a 74.7% probability of exploitation.

Which products are affected by CVE-2018-8298?

Affected products include Microsoft Chakracore.

How do I fix CVE-2018-8298?

Upgrade affected software to a fixed version, for example Microsoft Chakracore 1.10.1 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2018-8298 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, Secuno flags any affected asset as top-priority automatically. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.