{"schema":"threatline.record/2","record":{"id":"CVE-2018-0802","aliases":[],"summary":"Microsoft Office Memory Corruption Vulnerability","details":"Microsoft Office contains a memory corruption vulnerability due to the way objects are handled in memory. Successful exploitation allows for remote code execution in the context of the current user. This vulnerability is known to be chained with CVE-2018-0798.","categories":["Applications & CMS"],"product":"Office","vendor":"Microsoft","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2018-0802","source_modified_at":"2025-10-21T23:45:56.855Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"Equation Editor","vendor":"Microsoft Corporation","versions":[{"status":"affected","version":"Microsoft Office 2007, Microsoft Office 2010, Microsoft Office 2013, and Microsoft Office 2016"}],"defaultStatus":null}],"fixed_versions":[],"cvss":7.8,"severity":"High","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":0.93289,"percentile":0.99838,"score_date":"2026-10-23"},"published_at":"2018-01-10T01:00:00.000Z","modified_at":"2025-10-21T23:45:56.855Z","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-2018-0802","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2025-10-21T23:45:56.855Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2018-0802","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-2018-0802","source":"CISA KEV"},{"source":"CVE List","url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0802","tags":["x_refsource_CONFIRM","x_transferred"]},{"source":"CVE List","url":"https://github.com/rxwx/CVE-2018-0802","tags":["x_refsource_MISC","x_transferred"]},{"source":"CVE List","url":"https://0patch.blogspot.com/2018/01/the-bug-that-killed-equation-editor-how.html","tags":["x_refsource_MISC","x_transferred"]},{"source":"CVE List","url":"https://github.com/zldww2011/CVE-2018-0802_POC","tags":["x_refsource_MISC","x_transferred"]},{"source":"CVE List","url":"https://research.checkpoint.com/another-office-equation-rce-vulnerability/","tags":["x_refsource_MISC","x_transferred"]},{"source":"CVE List","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-0802","tags":["government-resource"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CISA ADP","ssvc":{"exploitation":"active","automatable":"no","technical_impact":"total","assessed_at":"2025-02-07T16:28:56.157400Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2025-10-21T23:45:56.855Z","content_hash":"0cdc9072ea535ced1d0f72ae37d0c784af8391a3afc09afaa0b61753549b3c1d"}}