{"schema":"threatline.record/2","record":{"id":"CVE-2020-0878","aliases":[],"summary":"Microsoft Edge and Internet Explorer Memory Corruption Vulnerability","details":"Microsoft Edge and Internet Explorer contain a memory corruption vulnerability that allows attackers to execute code in the context of the current user.","categories":["Applications & CMS"],"product":"Edge and Internet Explorer","vendor":"Microsoft","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2020-0878","source_modified_at":"2025-10-21T23:35:36.572Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"ChakraCore","vendor":"Microsoft","versions":[{"version":"0","lessThan":"publication","versionType":"custom","status":"affected"}],"defaultStatus":null},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2020-0878","source_modified_at":"2025-10-21T23:35:36.572Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"Microsoft Edge (EdgeHTML-based)","vendor":"Microsoft","versions":[{"version":"1.0..0","lessThan":"publication","versionType":"custom","status":"affected"}],"defaultStatus":null},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2020-0878","source_modified_at":"2025-10-21T23:35:36.572Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"Internet Explorer 9","vendor":"Microsoft","versions":[{"version":"1.0.0","lessThan":"publication","versionType":"custom","status":"affected"}],"defaultStatus":null},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2020-0878","source_modified_at":"2025-10-21T23:35:36.572Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"Internet Explorer 11","vendor":"Microsoft","versions":[{"version":"1.0.0","lessThan":"publication","versionType":"custom","status":"affected"}],"defaultStatus":null}],"fixed_versions":[],"cvss":4.2,"severity":"Medium","kev":{"listed":true,"date_added":"2021-11-03","due_date":"2022-05-03","required_action":"Apply updates per vendor instructions.","ransomware_campaign_use":"Known"},"epss":{"probability":0.02696,"percentile":0.85816,"score_date":"2026-10-23"},"published_at":"2020-09-11T17:08:26.000Z","modified_at":"2025-10-21T23:35:36.572Z","provenance":[{"source":"CISA KEV","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23T17:00:09.9001Z"},{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2020-0878","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2025-10-21T23:35:36.572Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2020-0878","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CISA KEV","CVE List","EPSS"],"references":[{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-0878","source":"CISA KEV"},{"source":"CVE List","url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0878","tags":["x_refsource_MISC","x_transferred"]},{"source":"CVE List","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-0878","tags":["government-resource"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"active","automatable":"no","technical_impact":"total","assessed_at":"2025-02-04T18:21:10.302219Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2025-10-21T23:35:36.572Z","content_hash":"4c146676214a71e113382b1e7eae71359606ee2cf6985977d99ee42116acb352"}}