[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fgDiHjyt7c3qmcHBtwdXvxNtGo-Bq7yDbXl-yN2qIR5o":3,"g5a-risk:CVE-2020-12403":122},{"success":4,"data":5,"meta":120},true,{"cveId":6,"title":7,"description":8,"shortDescription":9,"publishedDate":10,"lastModified":11,"cvssScore":12,"cvssVector":13,"cvssMetrics":14,"epssScore":40,"epssPercentile":27,"epssTimeSeries":41,"severity":42,"affectedProducts":43,"affectedProductsCount":49,"references":50,"referencesCount":72,"weaknesses":73,"weaknessesCount":49,"isActivelyExploited":82,"cisaInfo":27,"otxData":27,"relatedBlogPosts":83,"seoMetadata":84,"configurations":109,"relatedVendorCves":118,"notableEvents":119},"CVE-2020-12403","What is CVE-2020-12403?","A flaw was found in the way CHACHA20-POLY1305 was implemented in NSS in versions before 3.55. When using multi-part Chacha20, it could cause out-of-bounds reads. This issue was fixed by explicitly disabling multi-part ChaCha20 (which was not functioning correctly) and strictly enforcing tag length. The highest threat from this vulnerability is to confidentiality and system availability.","A flaw was found in the way CHACHA20-POLY1305 was implemented in NSS in versions before 3.55. When using multi-part Chacha20, it could cause out-of-bounds re...","2021-05-27T19:15:07.953","2023-03-24T16:15:07.843",9.1,"CVSS:3.1\u002FAV:N\u002FAC:L\u002FPR:N\u002FUI:N\u002FS:U\u002FC:H\u002FI:N\u002FA:H",{"CVSSMetricV31":15,"CVSSMetricV30":27,"CVSSMetricV2":30,"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":23,"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,3.9,5.2,[31],{"Source":17,"Type":18,"CVSSData":32,"BaseSeverity":37,"ExploitabilityScore":38,"ImpactScore":39,"ACInsufInfo":27,"ObtainAllPrivilege":27,"ObtainUserPrivilege":27,"ObtainOtherPrivilege":27,"UserInteractionRequired":27},{"Version":33,"VectorString":34,"AccessVector":21,"AccessComplexity":22,"Authentication":23,"ConfidentialityImpact":35,"IntegrityImpact":23,"AvailabilityImpact":35,"BaseScore":36,"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:P\u002FI:N\u002FA:P","PARTIAL",6.4,"MEDIUM",10,4.9,0.01541,[40,40,40,40,40,40,40],"Critical",[44],{"vendor":45,"product":46,"version":47,"criteria":48,"vulnerable":4},"mozilla","nss","*","cpe:2.3:a:mozilla:nss:*:*:*:*:*:*:*:*",1,[51,58,64,68],{"url":52,"source":53,"tags":54},"https:\u002F\u002Fbugzilla.redhat.com\u002Fshow_bug.cgi?id=1868931","Red Hat",[55,56,57],"Issue Tracking","Patch","Third Party Advisory",{"url":59,"source":60,"tags":61},"https:\u002F\u002Fdeveloper.mozilla.org\u002Fen-US\u002Fdocs\u002FMozilla\u002FProjects\u002FNSS\u002FNSS_3.55_release_notes","Mozilla",[62,63],"Release Notes","Vendor Advisory",{"url":65,"source":66,"tags":67},"https:\u002F\u002Flists.debian.org\u002Fdebian-lts-announce\u002F2023\u002F02\u002Fmsg00021.html","Debian",[],{"url":69,"source":70,"tags":71},"https:\u002F\u002Fsecurity.netapp.com\u002Fadvisory\u002Fntap-20230324-0006\u002F","Netapp",[],4,[74],{"id":75,"name":76,"description":77,"extendedDescription":78,"status":79,"abstraction":80,"structure":81},"CWE-125","Out-of-bounds Read","The product reads data past the end, or before the beginning, of the intended buffer.","","Draft","Base","Simple",false,[],{"title":85,"metaDescription":86,"keywords":87,"canonicalUrl":88,"structuredData":89},"What is CVE-2020-12403? Vulnerability Analysis | Security Advisory | Precursor Intelligence","Comprehensive analysis of CVE-2020-12403, a critical severity cyber security vulnerability from 2021. A flaw was found in the way CHACHA20-POLY1305 was imple...","CVE-2020-12403, CVE-2020-12403 vulnerability, CVE-2020-12403 security, critical severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research, vulnerability assessment, cyber threats, 2021, CVSS score, exploit, patch, remediation, mozilla security, nss vulnerability","\u002Fwhat-is\u002Fcve-2020-12403",{"@context":90,"@type":91,"headline":85,"description":86,"datePublished":10,"dateModified":11,"author":92,"publisher":96,"about":100,"mainEntityOfPage":104,"articleSection":107,"keywords":108},"https:\u002F\u002Fschema.org","TechArticle",{"@type":93,"name":94,"url":95},"Organization","Precursor Intelligence","https:\u002F\u002Fprecursorintelligence.com",{"@type":93,"name":94,"url":95,"logo":97},{"@type":98,"url":99},"ImageObject","https:\u002F\u002Fprecursorintelligence.com\u002Fimg\u002Flogos\u002Feplogo.png",{"@type":101,"name":6,"description":102,"additionalType":103},"Thing","Cybersecurity Vulnerability","https:\u002F\u002Fschema.org\u002FSoftwareBug",{"@type":105,"@id":106},"WebPage","https:\u002F\u002Fprecursorintelligence.com\u002Fwhat-is\u002Fcve-2020-12403","Cybersecurity","CVE-2020-12403, CVE-2020-12403 vulnerability, CVE-2020-12403 security, critical severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research",[110],{"Operator":27,"Negate":27,"Nodes":111},[112],{"Operator":113,"Negate":27,"CPEMatch":114},"OR",[115],{"Vulnerable":4,"Criteria":48,"MatchCriteriaID":116,"VersionStartExcluding":27,"VersionStartIncluding":27,"VersionEndExcluding":117,"VersionEndIncluding":27},"D021F308-A866-4FB1-ADF1-F00FDBFCCFF6","3.55",[],[],{"lastModified":11,"cacheTime":121,"version":33},1792347538209,{"score":123,"band":124,"action":125,"scoredAt":126},54,"Medium","Plan remediation","2026-10-16T06:51:13.862183+00:00"]