[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$f96RBzP31ZmR5oP7HV6xhqWG_5Y8LVaP02EwKoFd3aCc":3,"g5a-risk:CVE-2021-28494":126},{"success":4,"data":5,"meta":124},true,{"cveId":6,"title":7,"description":8,"shortDescription":9,"publishedDate":10,"lastModified":11,"cvssScore":12,"cvssVector":13,"cvssMetrics":14,"epssScore":50,"epssPercentile":26,"epssTimeSeries":51,"severity":52,"affectedProducts":53,"affectedProductsCount":63,"references":64,"referencesCount":71,"weaknesses":72,"weaknessesCount":71,"isActivelyExploited":81,"cisaInfo":26,"otxData":26,"relatedBlogPosts":82,"seoMetadata":83,"configurations":108,"relatedVendorCves":122,"notableEvents":123},"CVE-2021-28494","What is CVE-2021-28494?","In Arista's MOS (Metamako Operating System) software which is supported on the 7130 product line, under certain conditions, authentication is bypassed by unprivileged users who are accessing the Web UI. This issue affects: Arista Metamako Operating System MOS-0.34.0 and prior releases","In Arista's MOS (Metamako Operating System) software which is supported on the 7130 product line, under certain conditions, authentication is bypassed by unp...","2021-09-09T13:15:09.013","2021-09-22T16:01:45.347",8.8,"CVSS:3.1\u002FAV:N\u002FAC:L\u002FPR:L\u002FUI:N\u002FS:U\u002FC:H\u002FI:H\u002FA:H",{"CVSSMetricV31":15,"CVSSMetricV30":26,"CVSSMetricV2":39,"CVSSMetricV40":26},[16,29],{"Source":17,"Type":18,"CVSSData":19,"ExploitabilityScore":27,"ImpactScore":28},"nvd@nist.gov","Primary",{"Version":20,"VectorString":13,"AttackVector":21,"AttackComplexity":22,"PrivilegesRequired":22,"UserInteraction":23,"Scope":24,"ConfidentialityImpact":25,"IntegrityImpact":25,"AvailabilityImpact":25,"BaseScore":12,"BaseSeverity":25,"ExploitCodeMaturity":26,"RemediationLevel":26,"ReportConfidence":26,"TemporalScore":26,"TemporalSeverity":26,"ConfidentialityRequirement":26,"IntegrityRequirement":26,"AvailabilityRequirement":25,"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,2.8,5.9,{"Source":30,"Type":31,"CVSSData":32,"ExploitabilityScore":37,"ImpactScore":38},"psirt@arista.com","Secondary",{"Version":20,"VectorString":33,"AttackVector":21,"AttackComplexity":22,"PrivilegesRequired":22,"UserInteraction":23,"Scope":34,"ConfidentialityImpact":23,"IntegrityImpact":25,"AvailabilityImpact":25,"BaseScore":35,"BaseSeverity":36,"ExploitCodeMaturity":26,"RemediationLevel":26,"ReportConfidence":26,"TemporalScore":26,"TemporalSeverity":26,"ConfidentialityRequirement":26,"IntegrityRequirement":26,"AvailabilityRequirement":25,"ModifiedAttackVector":26,"ModifiedAttackComplexity":26,"ModifiedPrivilegesRequired":26,"ModifiedUserInteraction":26,"ModifiedScope":26,"ModifiedConfidentialityImpact":26,"ModifiedIntegrityImpact":26,"ModifiedAvailabilityImpact":26,"EnvironmentalScore":26,"EnvironmentalSeverity":26},"CVSS:3.1\u002FAV:N\u002FAC:L\u002FPR:L\u002FUI:N\u002FS:C\u002FC:N\u002FI:H\u002FA:H","CHANGED",9.6,"CRITICAL",3.1,5.8,[40],{"Source":17,"Type":18,"CVSSData":41,"BaseSeverity":47,"ExploitabilityScore":48,"ImpactScore":49,"ACInsufInfo":26,"ObtainAllPrivilege":26,"ObtainUserPrivilege":26,"ObtainOtherPrivilege":26,"UserInteractionRequired":26},{"Version":42,"VectorString":43,"AccessVector":21,"AccessComplexity":22,"Authentication":44,"ConfidentialityImpact":45,"IntegrityImpact":45,"AvailabilityImpact":45,"BaseScore":46,"BaseSeverity":26,"Exploitability":26,"RemediationLevel":26,"ReportConfidence":26,"TemporalScore":26,"CollateralDamagePotential":26,"TargetDistribution":26,"ConfidentialityRequirement":26,"IntegrityRequirement":26,"AvailabilityRequirement":26,"EnvironmentalScore":26},"2.0","AV:N\u002FAC:L\u002FAu:S\u002FC:P\u002FI:P\u002FA:P","SINGLE","PARTIAL",6.5,"MEDIUM",8,6.4,0.00875,[50,50,50,50,50,50,50],"High",[54,59],{"vendor":55,"product":56,"version":57,"criteria":58,"vulnerable":4},"arista","metamako_operating_system","*","cpe:2.3:o:arista:metamako_operating_system:*:*:*:*:*:*:*:*",{"vendor":55,"product":60,"version":61,"criteria":62,"vulnerable":4},"7130","-","cpe:2.3:h:arista:7130:-:*:*:*:*:*:*:*",2,[65],{"url":66,"source":67,"tags":68},"https:\u002F\u002Fwww.arista.com\u002Fen\u002Fsupport\u002Fadvisories-notices\u002Fsecurity-advisories\u002F12916-security-advisory-68","Arista",[69,70],"Mitigation","Vendor Advisory",1,[73],{"id":74,"name":75,"description":76,"extendedDescription":77,"status":78,"abstraction":79,"structure":80},"CWE-287","Improper Authentication","When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.","","Draft","Class","Simple",false,[],{"title":84,"metaDescription":85,"keywords":86,"canonicalUrl":87,"structuredData":88},"What is CVE-2021-28494? Vulnerability Analysis | Security Advisory | Precursor Intelligence","Comprehensive analysis of CVE-2021-28494, a high severity cyber security vulnerability from 2021. In Arista's MOS (Metamako Operating System) software which ...","CVE-2021-28494, CVE-2021-28494 vulnerability, CVE-2021-28494 security, high severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research, vulnerability assessment, cyber threats, 2021, CVSS score, exploit, patch, remediation, arista security, metamako_operating_system vulnerability, 7130 vulnerability","\u002Fwhat-is\u002Fcve-2021-28494",{"@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-2021-28494","Cybersecurity","CVE-2021-28494, CVE-2021-28494 vulnerability, CVE-2021-28494 security, high severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research",[109],{"Operator":110,"Negate":26,"Nodes":111},"AND",[112,118],{"Operator":113,"Negate":26,"CPEMatch":114},"OR",[115],{"Vulnerable":4,"Criteria":58,"MatchCriteriaID":116,"VersionStartExcluding":26,"VersionStartIncluding":26,"VersionEndExcluding":26,"VersionEndIncluding":117},"6C11D2B4-0389-4B23-B22A-1B0CB1B2299A","0.34.0",{"Operator":113,"Negate":26,"CPEMatch":119},[120],{"Vulnerable":26,"Criteria":62,"MatchCriteriaID":121,"VersionStartExcluding":26,"VersionStartIncluding":26,"VersionEndExcluding":26,"VersionEndIncluding":26},"4D832798-DA45-4F9E-AA31-5D088253A28A",[],[],{"lastModified":11,"cacheTime":125,"version":42},1792365180004,{"score":127,"band":128,"action":129,"scoredAt":130},54,"Medium","Plan remediation","2026-10-16T06:52:02.046161+00:00"]