{"schema":"threatline.record/2","record":{"id":"CVE-2020-2883","aliases":[],"summary":"Oracle WebLogic Server Unspecified Vulnerability","details":"Oracle WebLogic Server, a product within the Fusion Middleware suite, contains an unspecified vulnerability exploitable by an unauthenticated attacker with network access via IIOP or T3.","categories":["Web servers"],"product":"WebLogic Server","vendor":"Oracle","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2020-2883","source_modified_at":"2026-01-12T21:02:18.109Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"WebLogic Server","vendor":"Oracle Corporation","versions":[{"status":"affected","version":"10.3.6.0.0"},{"status":"affected","version":"12.1.3.0.0"},{"status":"affected","version":"12.2.1.3.0"},{"status":"affected","version":"12.2.1.4.0"}],"defaultStatus":null}],"fixed_versions":[],"cvss":9.8,"severity":"Critical","kev":{"listed":true,"date_added":"2025-01-07","due_date":"2025-01-28","required_action":"Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.","ransomware_campaign_use":"Unknown"},"epss":{"probability":0.94582,"percentile":0.99857,"score_date":"2026-10-23"},"published_at":"2020-04-15T13:29:50.000Z","modified_at":"2026-01-12T21:02:18.109Z","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-2020-2883","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-01-12T21:02:18.109Z"},{"source":"Metasploit","url":"https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/misc/weblogic_deserialize_badattr_extcomp.rb","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2020-04-30"},{"source":"Nuclei","url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/javascript/cves/2020/CVE-2020-2883.yaml","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":null},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2020-2883","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CISA KEV","CVE List","Metasploit","Nuclei","EPSS"],"references":[{"source":"CVE List","url":"https://www.oracle.com/security-alerts/cpuapr2020.html","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-2883","source":"CISA KEV"},{"source":"CVE List","url":"https://www.zerodayinitiative.com/advisories/ZDI-20-504/","tags":["x_refsource_MISC","x_transferred"]},{"source":"CVE List","url":"https://www.zerodayinitiative.com/advisories/ZDI-20-570/","tags":["x_refsource_MISC","x_transferred"]},{"source":"CVE List","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-2883","tags":["government-resource"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"active","automatable":"yes","technical_impact":"total","assessed_at":"2025-01-11T04:55:18.856261Z"},"exploits":[{"source":"Metasploit","kind":"Exploit module","name":"WebLogic Server Deserialization RCE BadAttributeValueExpException ExtComp","url":"https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/misc/weblogic_deserialize_badattr_extcomp.rb","date":"2020-04-30","added":"2026-04-22","check":true},{"source":"Nuclei","kind":"Scanner template","name":"Oracle WebLogic Server - Remote Code Execution","url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/javascript/cves/2020/CVE-2020-2883.yaml"}],"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-01-12T21:02:18.109Z","content_hash":"6b5e3a100b34bf03267e4b5016c16c36c751dffee5cd0e3859172eb10c3b0d51"}}