[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$f-amNfYYN54Glz3iuLDk0wsYPZgYyodtfRXVeX7FSasw":3,"g5a-risk:CVE-2021-34523":144},{"success":4,"data":5,"meta":142},true,{"cveId":6,"title":7,"description":8,"shortDescription":8,"publishedDate":9,"lastModified":10,"cvssScore":11,"cvssVector":12,"cvssMetrics":13,"epssScore":48,"epssPercentile":26,"epssTimeSeries":49,"severity":50,"affectedProducts":51,"affectedProductsCount":63,"references":64,"referencesCount":88,"weaknesses":89,"weaknessesCount":93,"isActivelyExploited":4,"cisaInfo":94,"otxData":26,"relatedBlogPosts":96,"seoMetadata":97,"configurations":122,"relatedVendorCves":140,"notableEvents":141},"CVE-2021-34523","What is CVE-2021-34523?","Microsoft Exchange Server Elevation of Privilege Vulnerability","2021-07-14T18:15:12.347","2025-03-07T17:12:53.023",9,"CVSS:3.1\u002FAV:L\u002FAC:L\u002FPR:N\u002FUI:N\u002FS:C\u002FC:H\u002FI:H\u002FA:N",{"CVSSMetricV31":14,"CVSSMetricV30":26,"CVSSMetricV2":38,"CVSSMetricV40":26},[15,29],{"Source":16,"Type":17,"CVSSData":18,"ExploitabilityScore":27,"ImpactScore":28},"secure@microsoft.com","Secondary",{"Version":19,"VectorString":12,"AttackVector":20,"AttackComplexity":21,"PrivilegesRequired":22,"UserInteraction":22,"Scope":23,"ConfidentialityImpact":24,"IntegrityImpact":24,"AvailabilityImpact":22,"BaseScore":11,"BaseSeverity":25,"ExploitCodeMaturity":26,"RemediationLevel":26,"ReportConfidence":26,"TemporalScore":26,"TemporalSeverity":26,"ConfidentialityRequirement":26,"IntegrityRequirement":26,"AvailabilityRequirement":22,"ModifiedAttackVector":26,"ModifiedAttackComplexity":26,"ModifiedPrivilegesRequired":26,"ModifiedUserInteraction":26,"ModifiedScope":26,"ModifiedConfidentialityImpact":26,"ModifiedIntegrityImpact":26,"ModifiedAvailabilityImpact":26,"EnvironmentalScore":26,"EnvironmentalSeverity":26},"3.1","LOCAL","LOW","NONE","CHANGED","HIGH","CRITICAL",null,2.5,5.8,{"Source":30,"Type":17,"CVSSData":31,"ExploitabilityScore":36,"ImpactScore":37},"nvd@nist.gov",{"Version":19,"VectorString":32,"AttackVector":33,"AttackComplexity":21,"PrivilegesRequired":22,"UserInteraction":22,"Scope":34,"ConfidentialityImpact":24,"IntegrityImpact":24,"AvailabilityImpact":24,"BaseScore":35,"BaseSeverity":25,"ExploitCodeMaturity":26,"RemediationLevel":26,"ReportConfidence":26,"TemporalScore":26,"TemporalSeverity":26,"ConfidentialityRequirement":26,"IntegrityRequirement":26,"AvailabilityRequirement":24,"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:N\u002FUI:N\u002FS:U\u002FC:H\u002FI:H\u002FA:H","NETWORK","UNCHANGED",9.8,3.9,5.9,[39],{"Source":30,"Type":40,"CVSSData":41,"BaseSeverity":24,"ExploitabilityScore":46,"ImpactScore":47,"ACInsufInfo":26,"ObtainAllPrivilege":26,"ObtainUserPrivilege":26,"ObtainOtherPrivilege":26,"UserInteractionRequired":26},"Primary",{"Version":42,"VectorString":43,"AccessVector":33,"AccessComplexity":21,"Authentication":22,"ConfidentialityImpact":44,"IntegrityImpact":44,"AvailabilityImpact":44,"BaseScore":45,"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:N\u002FC:P\u002FI:P\u002FA:P","PARTIAL",7.5,10,6.4,0.99987,[48,48,48,48,48,48,48],"Critical",[52,57,60],{"vendor":53,"product":54,"version":55,"criteria":56,"vulnerable":4},"microsoft","exchange_server","2013","cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_23:*:*:*:*:*:*",{"vendor":53,"product":54,"version":58,"criteria":59,"vulnerable":4},"2016","cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_19:*:*:*:*:*:*",{"vendor":53,"product":54,"version":61,"criteria":62,"vulnerable":4},"2019","cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_8:*:*:*:*:*:*",3,[65,72,78,82,84,86],{"url":66,"source":67,"tags":68},"http:\u002F\u002Fpacketstormsecurity.com\u002Ffiles\u002F163895\u002FMicrosoft-Exchange-ProxyShell-Remote-Code-Execution.html","Packetstormsecurity",[69,70,71],"Exploit","Third Party Advisory","VDB Entry",{"url":73,"source":74,"tags":75},"https:\u002F\u002Fportal.msrc.microsoft.com\u002Fen-US\u002Fsecurity-guidance\u002Fadvisory\u002FCVE-2021-34523","Microsoft",[76,77],"Patch","Vendor Advisory",{"url":79,"source":80,"tags":81},"https:\u002F\u002Fwww.zerodayinitiative.com\u002Fadvisories\u002FZDI-21-822\u002F","Zerodayinitiative",[70,71],{"url":66,"source":67,"tags":83},[69,70,71],{"url":73,"source":74,"tags":85},[76,77],{"url":79,"source":80,"tags":87},[70,71],6,[90],{"id":91,"name":91,"description":92},"Unknown","NVD-CWE-noinfo",1,{"shortDescription":95,"requiredAction":95,"vulnerabilityName":95,"dateAdded":26},"",[],{"title":98,"metaDescription":99,"keywords":100,"canonicalUrl":101,"structuredData":102},"What is CVE-2021-34523? Vulnerability Analysis | Security Advisory | EdgeProtect","Comprehensive analysis of CVE-2021-34523, a critical severity cyber security vulnerability from 2021. High exploit probability (100.0%). Microsoft Exchange S...","CVE-2021-34523, CVE-2021-34523 vulnerability, CVE-2021-34523 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, microsoft security, exchange_server vulnerability, high risk vulnerability, actively exploited, exploit available","\u002Fwhat-is\u002Fcve-2021-34523",{"@context":103,"@type":104,"headline":98,"description":99,"datePublished":9,"dateModified":10,"author":105,"publisher":109,"about":113,"mainEntityOfPage":117,"articleSection":120,"keywords":121},"https:\u002F\u002Fschema.org","TechArticle",{"@type":106,"name":107,"url":108},"Organization","EdgeProtect","https:\u002F\u002Fedgeprotect.io",{"@type":106,"name":107,"url":108,"logo":110},{"@type":111,"url":112},"ImageObject","https:\u002F\u002Fedgeprotect.io\u002Fimg\u002Flogos\u002Fedgeprotect-logo-512.png",{"@type":114,"name":6,"description":115,"additionalType":116},"Thing","Cybersecurity Vulnerability","https:\u002F\u002Fschema.org\u002FSoftwareBug",{"@type":118,"@id":119},"WebPage","https:\u002F\u002Fedgeprotect.io\u002Fwhat-is\u002Fcve-2021-34523","Cybersecurity","CVE-2021-34523, CVE-2021-34523 vulnerability, CVE-2021-34523 security, critical severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research",[123],{"Operator":26,"Negate":26,"Nodes":124},[125],{"Operator":126,"Negate":26,"CPEMatch":127},"OR",[128,130,132,135,137],{"Vulnerable":4,"Criteria":56,"MatchCriteriaID":129,"VersionStartExcluding":26,"VersionStartIncluding":26,"VersionEndExcluding":26,"VersionEndIncluding":26},"DA166F2A-D83B-4D50-AD0B-668D813E0585",{"Vulnerable":4,"Criteria":59,"MatchCriteriaID":131,"VersionStartExcluding":26,"VersionStartIncluding":26,"VersionEndExcluding":26,"VersionEndIncluding":26},"28FCA0E8-7D27-4746-9731-91B834CA3E64",{"Vulnerable":4,"Criteria":133,"MatchCriteriaID":134,"VersionStartExcluding":26,"VersionStartIncluding":26,"VersionEndExcluding":26,"VersionEndIncluding":26},"cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_20:*:*:*:*:*:*","19C1EE0C-B8DD-4B91-BE4B-1C42D72FB718",{"Vulnerable":4,"Criteria":62,"MatchCriteriaID":136,"VersionStartExcluding":26,"VersionStartIncluding":26,"VersionEndExcluding":26,"VersionEndIncluding":26},"44ECF39A-1DE1-4870-A494-06A53494338D",{"Vulnerable":4,"Criteria":138,"MatchCriteriaID":139,"VersionStartExcluding":26,"VersionStartIncluding":26,"VersionEndExcluding":26,"VersionEndIncluding":26},"cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_9:*:*:*:*:*:*","71CDF29B-116B-4DE2-AFD0-B62477FF0AEB",[],[],{"lastModified":10,"cacheTime":143,"version":42},1793201800798,{"score":145,"band":50,"action":146,"scoredAt":147},86,"Emergency patch","2026-07-01T10:26:39.362155+00:00"]