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CVE-2018-8298 ChakraCore CVE debrief

CVE-2018-8298 is a ChakraCore scripting engine type confusion vulnerability that CISA added to its Known Exploited Vulnerabilities catalog on 2022-03-03. The KEV listing makes this a patch-priority issue for any environment that uses ChakraCore or a product that embeds it. CISA’s required action is to apply updates per vendor instructions.

Vendor
ChakraCore
Product
ChakraCore scripting engine
CVSS
Unknown
CISA KEV
Listed
Original CVE published
2022-03-03
Original CVE updated
2022-03-03
Advisory published
2022-03-03
Advisory updated
2022-03-03

Who should care

Security teams, patch management teams, application owners, and platform operators responsible for systems that use ChakraCore or embed the ChakraCore scripting engine should treat this as urgent remediation work.

Technical summary

The supplied source corpus identifies CVE-2018-8298 as a ChakraCore scripting engine type confusion vulnerability. CISA’s KEV entry confirms known exploitation and directs defenders to apply vendor updates. The provided records do not include deeper technical details, exploit conditions, or impact specifics, so remediation should focus on identifying affected deployments and applying the vendor’s guidance.

Defensive priority

High. Because the vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, it should be prioritized ahead of routine maintenance and remediated according to vendor instructions.

Recommended defensive actions

  • Identify whether ChakraCore or products embedding ChakraCore are present in your environment.
  • Apply the vendor-recommended updates as soon as possible.
  • Prioritize exposed, internet-facing, and business-critical systems first.
  • Verify remediation by confirming the updated ChakraCore version or vendor patch level.
  • Monitor asset inventories and dependency manifests so embedded ChakraCore instances are not missed.

Evidence notes

CISA’s KEV record for CVE-2018-8298 names the issue as a “ChakraCore Scripting Engine Type Confusion Vulnerability,” sets dateAdded to 2022-03-03, and lists the required action as “Apply updates per vendor instructions.” The supplied corpus also links to the official CVE record and NVD entry, but no additional technical details are included in the source data provided here.

Official resources

Public advisory context is based on CISA’s Known Exploited Vulnerabilities catalog entry dated 2022-03-03. The supplied corpus does not include exploit details, proof-of-concept material, or a broader incident timeline.