[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fNFp7ukZDu_mJLfg_Ran4WjdnRvqDi8vpjeGmv7rUnYQ":3,"g5a-risk:CVE-2019-17026":186},{"success":4,"data":5,"meta":184},true,{"cveId":6,"title":7,"description":8,"shortDescription":9,"publishedDate":10,"lastModified":11,"cvssScore":12,"cvssVector":13,"cvssMetrics":14,"epssScore":47,"epssPercentile":27,"epssTimeSeries":48,"severity":49,"affectedProducts":50,"affectedProductsCount":64,"references":65,"referencesCount":109,"weaknesses":110,"weaknessesCount":119,"isActivelyExploited":4,"cisaInfo":120,"otxData":27,"relatedBlogPosts":121,"seoMetadata":122,"configurations":147,"relatedVendorCves":168,"notableEvents":169},"CVE-2019-17026","What is CVE-2019-17026?","Incorrect alias information in IonMonkey JIT compiler for setting array elements could lead to a type confusion. We are aware of targeted attacks in the wild abusing this flaw. This vulnerability affects Firefox ESR \u003C 68.4.1, Thunderbird \u003C 68.4.1, and Firefox \u003C 72.0.1.","Incorrect alias information in IonMonkey JIT compiler for setting array elements could lead to a type confusion. We are aware of targeted attacks in the wild...","2020-03-02T05:15:12.01","2025-10-22T00:16:36.96",8.8,"CVSS:3.1\u002FAV:N\u002FAC:L\u002FPR:N\u002FUI:R\u002FS:U\u002FC:H\u002FI:H\u002FA:H",{"CVSSMetricV31":15,"CVSSMetricV30":34,"CVSSMetricV2":35,"CVSSMetricV40":27},[16,30],{"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":24,"Scope":25,"ConfidentialityImpact":26,"IntegrityImpact":26,"AvailabilityImpact":26,"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},"3.1","NETWORK","LOW","NONE","REQUIRED","UNCHANGED","HIGH",null,2.8,5.9,{"Source":31,"Type":32,"CVSSData":33,"ExploitabilityScore":28,"ImpactScore":29},"134c704f-9b21-4f2e-91b3-4a467353bcc0","Secondary",{"Version":20,"VectorString":13,"AttackVector":21,"AttackComplexity":22,"PrivilegesRequired":23,"UserInteraction":24,"Scope":25,"ConfidentialityImpact":26,"IntegrityImpact":26,"AvailabilityImpact":26,"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},[],[36],{"Source":17,"Type":18,"CVSSData":37,"BaseSeverity":40,"ExploitabilityScore":44,"ImpactScore":45,"ACInsufInfo":46,"ObtainAllPrivilege":46,"ObtainUserPrivilege":46,"ObtainOtherPrivilege":46,"UserInteractionRequired":4},{"Version":38,"VectorString":39,"AccessVector":21,"AccessComplexity":40,"Authentication":23,"ConfidentialityImpact":41,"IntegrityImpact":41,"AvailabilityImpact":41,"BaseScore":42,"BaseSeverity":43,"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:M\u002FAu:N\u002FC:P\u002FI:P\u002FA:P","MEDIUM","PARTIAL",6.8,"",8.6,6.4,false,0.46311,[47,47,47,47,47,47,47],"High",[51,56,59],{"vendor":52,"product":53,"version":54,"criteria":55,"vulnerable":4},"mozilla","firefox","*","cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*",{"vendor":52,"product":57,"version":54,"criteria":58,"vulnerable":4},"thunderbird","cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*",{"vendor":60,"product":61,"version":62,"criteria":63,"vulnerable":4},"canonical","ubuntu_linux","16.04","cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*",3,[66,73,78,82,86,90,93,95,97,99,101,103,105],{"url":67,"source":68,"tags":69},"http:\u002F\u002Fpacketstormsecurity.com\u002Ffiles\u002F162568\u002FFirefox-72-IonMonkey-JIT-Type-Confusion.html","Packetstormsecurity",[70,71,72],"Exploit","Third Party Advisory","VDB Entry",{"url":74,"source":75,"tags":76},"https:\u002F\u002Fbugzilla.mozilla.org\u002Fshow_bug.cgi?id=1607443","Mozilla",[77],"Issue Tracking",{"url":79,"source":80,"tags":81},"https:\u002F\u002Fsecurity.gentoo.org\u002Fglsa\u002F202003-02","Gentoo",[71],{"url":83,"source":84,"tags":85},"https:\u002F\u002Fusn.ubuntu.com\u002F4335-1\u002F","Ubuntu",[71],{"url":87,"source":75,"tags":88},"https:\u002F\u002Fwww.mozilla.org\u002Fsecurity\u002Fadvisories\u002Fmfsa2020-03\u002F",[89],"Vendor Advisory",{"url":91,"source":75,"tags":92},"https:\u002F\u002Fwww.mozilla.org\u002Fsecurity\u002Fadvisories\u002Fmfsa2020-04\u002F",[89],{"url":67,"source":68,"tags":94},[70,71,72],{"url":74,"source":75,"tags":96},[77],{"url":79,"source":80,"tags":98},[71],{"url":83,"source":84,"tags":100},[71],{"url":87,"source":75,"tags":102},[89],{"url":91,"source":75,"tags":104},[89],{"url":106,"source":107,"tags":108},"https:\u002F\u002Fwww.cisa.gov\u002Fknown-exploited-vulnerabilities-catalog?field_cve=CVE-2019-17026","CISA",[],13,[111],{"id":112,"name":113,"description":114,"extendedDescription":115,"status":116,"abstraction":117,"structure":118},"CWE-843","Access of Resource Using Incompatible Type ('Type Confusion')","The product allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type.","When the product accesses the resource using an incompatible type, this could trigger logical errors because the resource does not have expected properties. In languages without memory safety, such as C and C++, type confusion can lead to out-of-bounds memory access.\nWhile this weakness is frequently associated with unions when parsing data with many different embedded object types in C, it can be present in any application that can interpret the same variable or memory location in multiple ways.\nThis weakness is not unique to C and C++. For example, errors in PHP applications can be triggered by providing array parameters when scalars are expected, or vice versa. Languages such as Perl, which perform automatic conversion of a variable of one type when it is accessed as if it were another type, can also contain these issues.","Incomplete","Base","Simple",1,{"shortDescription":43,"requiredAction":43,"vulnerabilityName":43,"dateAdded":27},[],{"title":123,"metaDescription":124,"keywords":125,"canonicalUrl":126,"structuredData":127},"What is CVE-2019-17026? Vulnerability Analysis | Security Advisory | Precursor Intelligence","Comprehensive analysis of CVE-2019-17026, a high severity cyber security vulnerability from 2020. High exploit probability (46.3%). Incorrect alias informati...","CVE-2019-17026, CVE-2019-17026 vulnerability, CVE-2019-17026 security, high severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research, vulnerability assessment, cyber threats, 2020, CVSS score, exploit, patch, remediation, mozilla security, canonical security, firefox vulnerability, thunderbird vulnerability, ubuntu_linux vulnerability, high risk vulnerability, actively exploited, exploit available","\u002Fwhat-is\u002Fcve-2019-17026",{"@context":128,"@type":129,"headline":123,"description":124,"datePublished":10,"dateModified":11,"author":130,"publisher":134,"about":138,"mainEntityOfPage":142,"articleSection":145,"keywords":146},"https:\u002F\u002Fschema.org","TechArticle",{"@type":131,"name":132,"url":133},"Organization","Precursor Intelligence","https:\u002F\u002Fprecursorintelligence.com",{"@type":131,"name":132,"url":133,"logo":135},{"@type":136,"url":137},"ImageObject","https:\u002F\u002Fprecursorintelligence.com\u002Fimg\u002Flogos\u002Feplogo.png",{"@type":139,"name":6,"description":140,"additionalType":141},"Thing","Cybersecurity Vulnerability","https:\u002F\u002Fschema.org\u002FSoftwareBug",{"@type":143,"@id":144},"WebPage","https:\u002F\u002Fprecursorintelligence.com\u002Fwhat-is\u002Fcve-2019-17026","Cybersecurity","CVE-2019-17026, CVE-2019-17026 vulnerability, CVE-2019-17026 security, high severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research",[148,162],{"Operator":27,"Negate":27,"Nodes":149},[150],{"Operator":151,"Negate":46,"CPEMatch":152},"OR",[153,156,160],{"Vulnerable":4,"Criteria":55,"MatchCriteriaID":154,"VersionStartExcluding":27,"VersionStartIncluding":27,"VersionEndExcluding":155,"VersionEndIncluding":27},"A1EC26E6-7CBE-4386-9E43-961A21639526","68.4.1",{"Vulnerable":4,"Criteria":157,"MatchCriteriaID":158,"VersionStartExcluding":27,"VersionStartIncluding":27,"VersionEndExcluding":159,"VersionEndIncluding":27},"cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*","21E5F0F7-D936-4FE0-B1F3-3A7CCDF49DEF","72.0.1",{"Vulnerable":4,"Criteria":58,"MatchCriteriaID":161,"VersionStartExcluding":27,"VersionStartIncluding":27,"VersionEndExcluding":155,"VersionEndIncluding":27},"BD9C9431-2F4C-4C13-848B-0E0C6A811F47",{"Operator":27,"Negate":27,"Nodes":163},[164],{"Operator":151,"Negate":46,"CPEMatch":165},[166],{"Vulnerable":4,"Criteria":63,"MatchCriteriaID":167,"VersionStartExcluding":27,"VersionStartIncluding":27,"VersionEndExcluding":27,"VersionEndIncluding":27},"7A5301BF-1402-4BE0-A0F8-69FBE79BC6D6",[],[170,177],{"id":171,"eventType":172,"eventTime":173,"details":174,"label":175,"color":176},"35c7cfe4-38f2-4eec-9129-8f04545e659d","LOW_EPSS_DELTA","2025-11-19T04:06:35.544383+00:00","Daily EPSS score decreased by 0.281 on 2023-12-30","EPSS Score Decreased","green",{"id":178,"eventType":179,"eventTime":180,"details":181,"label":182,"color":183},"7a85851a-ab2d-4e4c-9790-9d1ee8279360","HIGH_EPSS_DELTA","2025-11-22T04:06:23.538599+00:00","Daily EPSS score increased by 0.281 on 2023-12-30","EPSS Score Increased","red",{"lastModified":11,"cacheTime":185,"version":38},1792364726136,{"score":187,"band":49,"action":188,"scoredAt":189},72,"Emergency patch","2026-10-16T06:47:58.620549+00:00"]