{"cve":{"cve_id":"CVE-2018-8298","is_kev":true,"kev_date_added":"2022-03-03","kev_vendor_project":"ChakraCore","kev_product":"ChakraCore scripting engine","kev_vulnerability_name":"ChakraCore Scripting Engine Type Confusion Vulnerability","kev_short_description":"The ChakraCore scripting engine contains a type confusion vulnerability which can allow for remote code execution.","kev_required_action":"Apply updates per vendor instructions.","kev_due_date":"2022-03-17","kev_known_ransomware":false,"kev_notes":"https://nvd.nist.gov/vuln/detail/CVE-2018-8298","kev_cwes":["CWE-843"],"epss_score":0.75339,"epss_percentile":0.99451,"epss_as_of":"2026-06-23","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.","published_at":"2018-07-11T00:00:00Z","last_modified_at":null,"cvss_v3_score":7.5,"cvss_v3_vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","cvss_v3_severity":"HIGH","cvss_v4_score":null,"cvss_v4_vector":null,"cvss_v4_severity":null,"ssvc_decision":null,"ssvc_exploitation":"active","ssvc_automatable":false,"ssvc_technical_impact":"total","cwes":["CWE-843"],"nvd_references":["https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8298","http://www.securityfocus.com/bid/104639","https://www.exploit-db.com/exploits/45217/"],"vuln_status":null,"trending_score":null,"is_trending":false,"has_trended":false,"trended_number_one":false,"trending_peak_score":null,"trending_peak_rank":null,"started_trending_at":null,"trended_number_one_at":null,"summary_generated":null,"summary_generated_at":null,"summary_model":null,"created_at":"2026-06-24T00:09:31.350578Z","updated_at":"2026-06-28T23:11:40.235760Z"},"effective_severity":"HIGH","badges":["kev","epss"],"impact_analysis":[],"cvss_v3_decoded":{"version":"3.1","metrics":[{"metric":"AV","name":"Attack Vector","value":"N","value_label":"Network"},{"metric":"AC","name":"Attack Complexity","value":"H","value_label":"High"},{"metric":"PR","name":"Privileges Required","value":"N","value_label":"None"},{"metric":"UI","name":"User Interaction","value":"R","value_label":"Required"},{"metric":"S","name":"Scope","value":"U","value_label":"Unchanged"},{"metric":"C","name":"Confidentiality","value":"H","value_label":"High"},{"metric":"I","name":"Integrity","value":"H","value_label":"High"},{"metric":"A","name":"Availability","value":"H","value_label":"High"}]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"microsoft","vendor_name":"Microsoft","product_slug":"chakracore","product_name":"ChakraCore","version_start":"ChakraCore","version_start_inclusive":true,"version_end":"ChakraCore","version_end_inclusive":true,"cpe23_uri":"cve5:microsoft:chakracore:ChakraCore:ChakraCore"}],"exploit_refs":[],"news":[],"references":[{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8298","source_type":"VENDOR_ADVISORY","tags":["advisory"]},{"url":"http://www.securityfocus.com/bid/104639","source_type":"MISC","tags":[]},{"url":"https://www.exploit-db.com/exploits/45217/","source_type":"EXPLOIT","tags":["exploit"]}],"timeline":[{"type":"published","at":"2018-07-11T00:00:00Z","label":"CVE published","source":null},{"type":"cisa_reported","at":"2022-03-03T00:00:00Z","label":"Added to CISA KEV catalog","source":"kev"},{"type":"ssvc_changed","at":"2026-06-24T00:31:17.516004Z","label":"SSVC decision revised","source":"vulnrichment"},{"type":"ssvc_changed","at":"2026-06-24T00:31:17.516004Z","label":"SSVC decision revised","source":"vulnrichment"},{"type":"ssvc_changed","at":"2026-06-24T00:31:17.516004Z","label":"SSVC decision revised","source":"vulnrichment"},{"type":"cvss_changed","at":"2026-06-24T00:31:17.516004Z","label":"CVSS score revised","source":"vulnrichment"},{"type":"cvss_changed","at":"2026-06-24T00:31:17.516004Z","label":"CVSS score revised","source":"vulnrichment"},{"type":"cvss_changed","at":"2026-06-24T00:31:17.516004Z","label":"CVSS score revised","source":"vulnrichment"}]}