{"id":"CVE-2020-14644","published":"2020-07-15T18:15:29Z","modified":"2026-06-17T02:55:13Z","title":"Oracle WebLogic Server Remote Code Execution Vulnerability","vendor":"Oracle","product":"WebLogic Server","tier":"core","eol":null,"description":{"text":"Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Core). Supported versions that are affected are 12.2.1.3.0, 12.2.1.4.0 and 14.1.1.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via IIOP, T3 to compromise Oracle WebLogic Server. Successful attacks of this vulnerability can result in takeover of Oracle WebLogic Server. CVSS 3.1 Base Score 9.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).","provenance":"source","from":"NVD"},"summary":{"text":"An unauthenticated flaw in the Core component of Oracle WebLogic Server, part of Oracle Fusion Middleware, affects supported versions 12.2.1.3.0, 12.2.1.4.0 and 14.1.1.0.0. An attacker with network access via IIOP or T3 can, without authentication or user interaction, take over the Oracle WebLogic Server.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-23T07:11:49Z"},"cvss":{"score":9.8,"severity":"CRITICAL","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","provenance":"source","from":"NVD"},"epss":{"score":0.94548,"percentile":0.99854,"date":"2026-10-28","provenance":"source"},"kev":{"dateAdded":"2024-09-18","dueDate":"2024-10-09","ransomware":false,"requiredAction":"Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.","notes":"https://www.oracle.com/security-alerts/cpujul2020.html  ;  https://nvd.nist.gov/vuln/detail/CVE-2020-14644","provenance":"source"},"vulncheckKev":{"dateAdded":"2024-09-18","exploitedFirstSeen":"2024-09-18","ransomware":false,"evidence":[{"url":"https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json","date":"2024-09-18"},{"url":"https://www.forescout.com/resources/anatomy-of-an-attack-hunters-international-ransomware/","date":"2025-01-09"}],"evidenceTotal":2,"provenance":"source"},"exploited":true,"otx":{"pulseCount":50,"pulses":[{"name":"Actively_Exploited_Kev | Oct 29, 2026","url":"https://otx.alienvault.com/pulse/6ae20c1db17e7057ae7d9ad1","created":"2026-10-28"},{"name":"Actively_Exploited_Kev | Oct 28, 2026","url":"https://otx.alienvault.com/pulse/6ae0ba7e0e2a97ff7b218819","created":"2026-10-27"},{"name":"Actively_Exploited_Kev | Oct 27, 2026","url":"https://otx.alienvault.com/pulse/6adf68b85c3e852f3c111d18","created":"2026-10-26"},{"name":"Actively_Exploited_Kev | Oct 24, 2026","url":"https://otx.alienvault.com/pulse/6adb740e397c3ad4799aa4cd","created":"2026-10-23"},{"name":"Actively_Exploited_Kev | Oct 23, 2026","url":"https://otx.alienvault.com/pulse/6ada236fcfba2dfa730ea482","created":"2026-10-22"},{"name":"Actively_Exploited_Kev | Oct 22, 2026","url":"https://otx.alienvault.com/pulse/6ad8d33a077cbb5cab524d80","created":"2026-10-21"},{"name":"Actively_Exploited_Kev | Oct 21, 2026","url":"https://otx.alienvault.com/pulse/6ad78130c4d1ac2be83a8b6d","created":"2026-10-20"},{"name":"Actively_Exploited_Kev | Oct 20, 2026","url":"https://otx.alienvault.com/pulse/6ad62f63c24a405a3423cc13","created":"2026-10-19"},{"name":"Actively_Exploited_Kev | Oct 19, 2026","url":"https://otx.alienvault.com/pulse/6ad4dda174e5797d0bd238b7","created":"2026-10-18"},{"name":"Actively_Exploited_Kev | Oct 18, 2026","url":"https://otx.alienvault.com/pulse/6ad38c22e1848f8189d1c121","created":"2026-10-17"}],"provenance":"machine"},"cwes":[],"references":[{"url":"https://www.oracle.com/security-alerts/cpujul2020.html","tags":["Vendor Advisory"]},{"url":"https://www.oracle.com/security-alerts/cpujul2020.html","tags":["Vendor Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-14644","tags":["US Government Resource"]}],"techniques":[{"id":"T1190","name":"Exploit Public-Facing Application","tactics":["initial-access"],"provenance":"ai","basis":"ai-mapping","bases":["ai-mapping"],"basisDetail":"claude-haiku-5-5: Unauthenticated network exploit of public-facing server","mappingType":"exploitation_technique","evidence":[{"from":"description","quote":"allows unauthenticated attacker with network access via IIOP, T3 to compromise","start":212,"end":290}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"},{"id":"T1059","name":"Command and Scripting Interpreter","tactics":["execution"],"provenance":"ai","basis":"ai-mapping","bases":["ai-mapping"],"basisDetail":"claude-haiku-5-5: Takeover implies arbitrary code execution on server","mappingType":"primary_impact","evidence":[{"from":"description","quote":"can result in takeover of Oracle WebLogic Server","start":356,"end":404}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"}],"reports":[],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2020-6780","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2020-6780","exploited":true,"exploitedSince":"2024-09-18","provenance":"source"},"exploits":[],"exploitSources":{"pocGithub":{"count":1,"skipped":0,"earliest":"2020-10-20","earliestUrl":"https://github.com/0xkami/cve-2020-14644","repos":[{"name":"0xkami/cve-2020-14644","url":"https://github.com/0xkami/cve-2020-14644","stars":2,"created":"2020-10-20"}]},"nuclei":[{"id":"CVE-2020-14644","name":"Oracle WebLogic Server - Remote Code Execution (Insecure Deserialization)","severity":"critical","path":"javascript/cves/2020/CVE-2020-14644.yaml","url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/javascript/cves/2020/CVE-2020-14644.yaml"}],"first":{"date":"2020-10-20","source":"PoC-in-GitHub","url":"https://github.com/0xkami/cve-2020-14644"},"provenance":"source"},"exploitRefs":[],"flow":[{"stage":"exploitation","techniques":["T1190"],"provenance":"ai"},{"stage":"primary","techniques":["T1059"],"provenance":"ai"}],"timeline":[{"date":"2020-07-15","kind":"published","label":"Published (NVD)","url":"https://nvd.nist.gov/vuln/detail/CVE-2020-14644","provenance":"source"},{"date":"2020-10-20","kind":"exploit-public","label":"First public exploit: PoC-in-GitHub","url":"https://github.com/0xkami/cve-2020-14644","provenance":"source"},{"date":"2024-09-18","kind":"exploited-reported","label":"Exploitation first reported (VulnCheck KEV evidence)","url":"https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json","provenance":"source"},{"date":"2024-09-18","kind":"kev","label":"Added to CISA KEV","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","provenance":"source"},{"date":"2024-09-18","kind":"euvd-exploited","label":"ENISA EUVD: exploited","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2020-6780","provenance":"source"}],"speed":{"daysToPublicExploit":97,"firstExploitFrom":"PoC-in-GitHub","daysToKev":1526},"priority":{"score":69.8,"factors":[{"name":"In a KEV catalog","points":35.0,"detail":"listed in CISA KEV and VulnCheck KEV"},{"name":"Recent KEV listing","points":0.0,"detail":"added 771 days ago"},{"name":"Known ransomware use","points":0.0,"detail":"not known"},{"name":"EPSS percentile","points":19.97,"detail":"percentile 0.9985"},{"name":"Named in threat reports","points":0.0,"detail":"0 reports"},{"name":"Public exploit code","points":5.0,"detail":"1 PoC-in-GitHub repo; 1 nuclei template"},{"name":"Mentioned in OTX pulses","points":3.0,"detail":"50 pulses"},{"name":"CVSS severity","points":6.86,"detail":"base score 9.8"},{"name":"End-of-life product","points":0.0,"detail":"supported or unknown"}]}}