[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fYEq8G5b3YOz2zXQIzUtFQ0JersRm0yQywnJf6kxfqqk":3,"g5a-risk:CVE-2020-4450":140},{"success":4,"data":5,"meta":138},true,{"cveId":6,"title":7,"description":8,"shortDescription":9,"publishedDate":10,"lastModified":11,"cvssScore":12,"cvssVector":13,"cvssMetrics":14,"epssScore":44,"epssPercentile":27,"epssTimeSeries":45,"severity":46,"affectedProducts":47,"affectedProductsCount":53,"references":54,"referencesCount":71,"weaknesses":72,"weaknessesCount":53,"isActivelyExploited":81,"cisaInfo":27,"otxData":27,"relatedBlogPosts":82,"seoMetadata":83,"configurations":108,"relatedVendorCves":122,"notableEvents":123},"CVE-2020-4450","What is CVE-2020-4450?","IBM WebSphere Application Server 8.5 and 9.0 traditional could allow a remote attacker to execute arbitrary code on the system with a specially-crafted sequence of serialized objects. IBM X-Force ID: 181231.","IBM WebSphere Application Server 8.5 and 9.0 traditional could allow a remote attacker to execute arbitrary code on the system with a specially-crafted seque...","2020-06-05T17:15:11.437","2020-06-09T18:52:09.567",9.8,"CVSS:3.1\u002FAV:N\u002FAC:L\u002FPR:N\u002FUI:N\u002FS:U\u002FC:H\u002FI:H\u002FA:H",{"CVSSMetricV31":15,"CVSSMetricV30":30,"CVSSMetricV2":37,"CVSSMetricV40":27},[16],{"Source":17,"Type":18,"CVSSData":19,"ExploitabilityScore":28,"ImpactScore":29},"nvd@nist.gov","Primary",{"Version":20,"VectorString":13,"AttackVector":21,"AttackComplexity":22,"PrivilegesRequired":23,"UserInteraction":23,"Scope":24,"ConfidentialityImpact":25,"IntegrityImpact":25,"AvailabilityImpact":25,"BaseScore":12,"BaseSeverity":26,"ExploitCodeMaturity":27,"RemediationLevel":27,"ReportConfidence":27,"TemporalScore":27,"TemporalSeverity":27,"ConfidentialityRequirement":27,"IntegrityRequirement":27,"AvailabilityRequirement":25,"ModifiedAttackVector":27,"ModifiedAttackComplexity":27,"ModifiedPrivilegesRequired":27,"ModifiedUserInteraction":27,"ModifiedScope":27,"ModifiedConfidentialityImpact":27,"ModifiedIntegrityImpact":27,"ModifiedAvailabilityImpact":27,"EnvironmentalScore":27,"EnvironmentalSeverity":27},"3.1","NETWORK","LOW","NONE","UNCHANGED","HIGH","CRITICAL",null,3.9,5.9,[31],{"Source":32,"Type":33,"CVSSData":34,"ExploitabilityScore":28,"ImpactScore":29},"psirt@us.ibm.com","Secondary",{"Version":35,"VectorString":36,"AttackVector":21,"AttackComplexity":22,"PrivilegesRequired":23,"UserInteraction":23,"Scope":24,"ConfidentialityImpact":25,"IntegrityImpact":25,"AvailabilityImpact":25,"BaseScore":12,"BaseSeverity":26,"ExploitCodeMaturity":27,"RemediationLevel":27,"ReportConfidence":27,"TemporalScore":27,"TemporalSeverity":27,"ConfidentialityRequirement":27,"IntegrityRequirement":27,"AvailabilityRequirement":27,"ModifiedAttackVector":27,"ModifiedAttackComplexity":27,"ModifiedPrivilegesRequired":27,"ModifiedUserInteraction":27,"ModifiedScope":27,"ModifiedConfidentialityImpact":27,"ModifiedIntegrityImpact":27,"ModifiedAvailabilityImpact":27,"EnvironmentalScore":27,"EnvironmentalSeverity":27},"3.0","CVSS:3.0\u002FAV:N\u002FAC:L\u002FPR:N\u002FUI:N\u002FS:U\u002FC:H\u002FI:H\u002FA:H",[38],{"Source":17,"Type":18,"CVSSData":39,"BaseSeverity":25,"ExploitabilityScore":43,"ImpactScore":43,"ACInsufInfo":27,"ObtainAllPrivilege":27,"ObtainUserPrivilege":27,"ObtainOtherPrivilege":27,"UserInteractionRequired":27},{"Version":40,"VectorString":41,"AccessVector":21,"AccessComplexity":22,"Authentication":23,"ConfidentialityImpact":42,"IntegrityImpact":42,"AvailabilityImpact":42,"BaseScore":43,"BaseSeverity":27,"Exploitability":27,"RemediationLevel":27,"ReportConfidence":27,"TemporalScore":27,"CollateralDamagePotential":27,"TargetDistribution":27,"ConfidentialityRequirement":27,"IntegrityRequirement":27,"AvailabilityRequirement":27,"EnvironmentalScore":27},"2.0","AV:N\u002FAC:L\u002FAu:N\u002FC:C\u002FI:C\u002FA:C","COMPLETE",10,0.34176,[44,44,44,44,44,44,44],"Critical",[48],{"vendor":49,"product":50,"version":51,"criteria":52,"vulnerable":4},"ibm","websphere_application_server","*","cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:*:*:*:*",1,[55,61,66],{"url":56,"source":57,"tags":58},"https:\u002F\u002Fexchange.xforce.ibmcloud.com\u002Fvulnerabilities\u002F181231","Ibmcloud",[59,60],"VDB Entry","Vendor Advisory",{"url":62,"source":63,"tags":64},"https:\u002F\u002Fwww.ibm.com\u002Fsupport\u002Fpages\u002Fnode\u002F6220294","Ibm",[65,60],"Patch",{"url":67,"source":68,"tags":69},"https:\u002F\u002Fwww.zerodayinitiative.com\u002Fadvisories\u002FZDI-20-689\u002F","Zerodayinitiative",[70,59],"Third Party Advisory",3,[73],{"id":74,"name":75,"description":76,"extendedDescription":77,"status":78,"abstraction":79,"structure":80},"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",false,[],{"title":84,"metaDescription":85,"keywords":86,"canonicalUrl":87,"structuredData":88},"What is CVE-2020-4450? Vulnerability Analysis | Security Advisory | Precursor Intelligence","Comprehensive analysis of CVE-2020-4450, a critical severity cyber security vulnerability from 2020. High exploit probability (34.2%). IBM WebSphere Applicat...","CVE-2020-4450, CVE-2020-4450 vulnerability, CVE-2020-4450 security, critical severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research, vulnerability assessment, cyber threats, 2020, CVSS score, exploit, patch, remediation, ibm security, websphere_application_server vulnerability, high risk vulnerability, actively exploited, exploit available","\u002Fwhat-is\u002Fcve-2020-4450",{"@context":89,"@type":90,"headline":84,"description":85,"datePublished":10,"dateModified":11,"author":91,"publisher":95,"about":99,"mainEntityOfPage":103,"articleSection":106,"keywords":107},"https:\u002F\u002Fschema.org","TechArticle",{"@type":92,"name":93,"url":94},"Organization","Precursor Intelligence","https:\u002F\u002Fprecursorintelligence.com",{"@type":92,"name":93,"url":94,"logo":96},{"@type":97,"url":98},"ImageObject","https:\u002F\u002Fprecursorintelligence.com\u002Fimg\u002Flogos\u002Feplogo.png",{"@type":100,"name":6,"description":101,"additionalType":102},"Thing","Cybersecurity Vulnerability","https:\u002F\u002Fschema.org\u002FSoftwareBug",{"@type":104,"@id":105},"WebPage","https:\u002F\u002Fprecursorintelligence.com\u002Fwhat-is\u002Fcve-2020-4450","Cybersecurity","CVE-2020-4450, CVE-2020-4450 vulnerability, CVE-2020-4450 security, critical severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research",[109],{"Operator":27,"Negate":27,"Nodes":110},[111],{"Operator":112,"Negate":27,"CPEMatch":113},"OR",[114,118],{"Vulnerable":4,"Criteria":52,"MatchCriteriaID":115,"VersionStartExcluding":27,"VersionStartIncluding":116,"VersionEndExcluding":117,"VersionEndIncluding":27},"E69F553E-2C9D-4406-9C45-4ADD5209DA4C","8.5.0.0","8.5.5.18",{"Vulnerable":4,"Criteria":52,"MatchCriteriaID":119,"VersionStartExcluding":27,"VersionStartIncluding":120,"VersionEndExcluding":121,"VersionEndIncluding":27},"7310AE87-CD93-4996-8D26-C3DE4D77500C","9.0.0.0","9.0.5.5",[],[124,131],{"id":125,"eventType":126,"eventTime":127,"details":128,"label":129,"color":130},"021826ed-0bed-4822-9f5f-63f637566934","LOW_EPSS_DELTA","2025-11-19T04:06:14.690107+00:00","Daily EPSS score decreased by 0.187 on 2023-12-30","EPSS Score Decreased","green",{"id":132,"eventType":133,"eventTime":134,"details":135,"label":136,"color":137},"d6d700b6-4735-441f-b896-4651be039a52","HIGH_EPSS_DELTA","2025-11-22T04:06:02.426902+00:00","Daily EPSS score increased by 0.187 on 2023-12-30","EPSS Score Increased","red",{"lastModified":11,"cacheTime":139,"version":40},1792282972221,{"score":141,"band":142,"action":143,"scoredAt":144},66,"Medium","Plan remediation","2026-10-16T06:48:44.750604+00:00"]