[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$f2k4bgiudgb76RJRRyZ-8JP4oc_4t_-Gm2Xeg-idIx7k":3,"g5a-risk:CVE-2023-21839":131},{"success":4,"data":5,"meta":128},true,{"cveId":6,"title":7,"description":8,"shortDescription":9,"publishedDate":10,"lastModified":11,"cvssScore":12,"cvssVector":13,"cvssMetrics":14,"epssScore":31,"epssPercentile":26,"epssTimeSeries":32,"severity":33,"affectedProducts":34,"affectedProductsCount":46,"references":47,"referencesCount":70,"weaknesses":71,"weaknessesCount":85,"isActivelyExploited":4,"cisaInfo":86,"otxData":26,"relatedBlogPosts":87,"seoMetadata":88,"configurations":113,"relatedVendorCves":126,"notableEvents":127},"CVE-2023-21839","What is CVE-2023-21839?","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 T3, IIOP to compromise Oracle WebLogic Server.  Successful attacks of this vulnerability can result in  unauthorized access to critical data or complete access to all Oracle WebLogic Server accessible data.","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....","2023-01-18T00:15:13.45","2025-10-27T17:08:13.293",7.5,"CVSS:3.1\u002FAV:N\u002FAC:L\u002FPR:N\u002FUI:N\u002FS:U\u002FC:H\u002FI:N\u002FA:N",{"CVSSMetricV31":15,"CVSSMetricV30":29,"CVSSMetricV2":30,"CVSSMetricV40":26},[16],{"Source":17,"Type":18,"CVSSData":19,"ExploitabilityScore":27,"ImpactScore":28},"secalert_us@oracle.com","Secondary",{"Version":20,"VectorString":13,"AttackVector":21,"AttackComplexity":22,"PrivilegesRequired":23,"UserInteraction":23,"Scope":24,"ConfidentialityImpact":25,"IntegrityImpact":23,"AvailabilityImpact":23,"BaseScore":12,"BaseSeverity":25,"ExploitCodeMaturity":26,"RemediationLevel":26,"ReportConfidence":26,"TemporalScore":26,"TemporalSeverity":26,"ConfidentialityRequirement":26,"IntegrityRequirement":26,"AvailabilityRequirement":26,"ModifiedAttackVector":26,"ModifiedAttackComplexity":26,"ModifiedPrivilegesRequired":26,"ModifiedUserInteraction":26,"ModifiedScope":26,"ModifiedConfidentialityImpact":26,"ModifiedIntegrityImpact":26,"ModifiedAvailabilityImpact":26,"EnvironmentalScore":26,"EnvironmentalSeverity":26},"3.1","NETWORK","LOW","NONE","UNCHANGED","HIGH",null,3.9,3.6,[],[],0.999,[31,31,31,31,31,31,31],"High",[35,40,43],{"vendor":36,"product":37,"version":38,"criteria":39,"vulnerable":4},"oracle","weblogic_server","12.2.1.3.0","cpe:2.3:a:oracle:weblogic_server:12.2.1.3.0:*:*:*:*:*:*:*",{"vendor":36,"product":37,"version":41,"criteria":42,"vulnerable":4},"12.2.1.4.0","cpe:2.3:a:oracle:weblogic_server:12.2.1.4.0:*:*:*:*:*:*:*",{"vendor":36,"product":37,"version":44,"criteria":45,"vulnerable":4},"14.1.1.0.0","cpe:2.3:a:oracle:weblogic_server:14.1.1.0.0:*:*:*:*:*:*:*",3,[48,55,61,63,65],{"url":49,"source":50,"tags":51},"http:\u002F\u002Fpacketstormsecurity.com\u002Ffiles\u002F172882\u002FOracle-Weblogic-PreAuth-Remote-Command-Execution.html","Packetstormsecurity",[52,53,54],"Exploit","Third Party Advisory","VDB Entry",{"url":56,"source":57,"tags":58},"https:\u002F\u002Fwww.oracle.com\u002Fsecurity-alerts\u002Fcpujan2023.html","Oracle",[59,60],"Patch","Vendor Advisory",{"url":49,"source":50,"tags":62},[52,53,54],{"url":56,"source":57,"tags":64},[59,60],{"url":66,"source":67,"tags":68},"https:\u002F\u002Fwww.cisa.gov\u002Fknown-exploited-vulnerabilities-catalog?field_cve=CVE-2023-21839","CISA",[69],"US Government Resource",5,[72,80],{"id":73,"name":74,"description":75,"extendedDescription":76,"status":77,"abstraction":78,"structure":79},"CWE-502","Deserialization of Untrusted Data","The product deserializes untrusted data without sufficiently verifying that the resulting data will be valid.","It is often convenient to serialize objects for communication or to save them for later use. However, deserialized data or code can often be modified without using the provided accessor functions if it does not use cryptography to protect itself. Furthermore, any cryptography would still be client-side security -- which is a dangerous security assumption.\nData that is untrusted can not be trusted to be well-formed.\nWhen developers place no restrictions on \"gadget chains,\" or series of instances and method invocations that can self-execute during the deserialization process (i.e., before the object is returned to the caller), it is sometimes possible for attackers to leverage them to perform unauthorized actions, like generating a shell.","Draft","Base","Simple",{"id":81,"name":82,"description":83,"extendedDescription":84,"status":77,"abstraction":78,"structure":79},"CWE-306","Missing Authentication for Critical Function","The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.","",2,{"shortDescription":84,"requiredAction":84,"vulnerabilityName":84,"dateAdded":26},[],{"title":89,"metaDescription":90,"keywords":91,"canonicalUrl":92,"structuredData":93},"What is CVE-2023-21839? Vulnerability Analysis | Security Advisory | Precursor Intelligence","Comprehensive analysis of CVE-2023-21839, a high severity cyber security vulnerability from 2023. High exploit probability (99.9%). Vulnerability in the Orac...","CVE-2023-21839, CVE-2023-21839 vulnerability, CVE-2023-21839 security, high severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research, vulnerability assessment, cyber threats, 2023, CVSS score, exploit, patch, remediation, oracle security, weblogic_server vulnerability, high risk vulnerability, actively exploited, exploit available","\u002Fwhat-is\u002Fcve-2023-21839",{"@context":94,"@type":95,"headline":89,"description":90,"datePublished":10,"dateModified":11,"author":96,"publisher":100,"about":104,"mainEntityOfPage":108,"articleSection":111,"keywords":112},"https:\u002F\u002Fschema.org","TechArticle",{"@type":97,"name":98,"url":99},"Organization","Precursor Intelligence","https:\u002F\u002Fprecursorintelligence.com",{"@type":97,"name":98,"url":99,"logo":101},{"@type":102,"url":103},"ImageObject","https:\u002F\u002Fprecursorintelligence.com\u002Fimg\u002Flogos\u002Feplogo.png",{"@type":105,"name":6,"description":106,"additionalType":107},"Thing","Cybersecurity Vulnerability","https:\u002F\u002Fschema.org\u002FSoftwareBug",{"@type":109,"@id":110},"WebPage","https:\u002F\u002Fprecursorintelligence.com\u002Fwhat-is\u002Fcve-2023-21839","Cybersecurity","CVE-2023-21839, CVE-2023-21839 vulnerability, CVE-2023-21839 security, high severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research",[114],{"Operator":26,"Negate":26,"Nodes":115},[116],{"Operator":117,"Negate":118,"CPEMatch":119},"OR",false,[120,122,124],{"Vulnerable":4,"Criteria":39,"MatchCriteriaID":121,"VersionStartExcluding":26,"VersionStartIncluding":26,"VersionEndExcluding":26,"VersionEndIncluding":26},"F14A818F-AA16-4438-A3E4-E64C9287AC66",{"Vulnerable":4,"Criteria":42,"MatchCriteriaID":123,"VersionStartExcluding":26,"VersionStartIncluding":26,"VersionEndExcluding":26,"VersionEndIncluding":26},"4A5BB153-68E0-4DDA-87D1-0D9AB7F0A418",{"Vulnerable":4,"Criteria":45,"MatchCriteriaID":125,"VersionStartExcluding":26,"VersionStartIncluding":26,"VersionEndExcluding":26,"VersionEndIncluding":26},"04BCDC24-4A21-473C-8733-0D9CFB38A752",[],[],{"lastModified":11,"cacheTime":129,"version":130},1792333077838,"2.0",{"score":132,"band":33,"action":133,"scoredAt":134},78,"Emergency patch","2026-10-16T06:56:55.16545+00:00"]