[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fZxQSTJRrxFPrpSzS7_CwPj-NEu07MFhj5LK0yWBvnvY":3,"g5a-risk:CVE-2021-34993":125},{"success":4,"data":5,"meta":123},true,{"cveId":6,"title":7,"description":8,"shortDescription":9,"publishedDate":10,"lastModified":11,"cvssScore":12,"cvssVector":13,"cvssMetrics":14,"epssScore":46,"epssPercentile":27,"epssTimeSeries":47,"severity":48,"affectedProducts":49,"affectedProductsCount":55,"references":56,"referencesCount":55,"weaknesses":63,"weaknessesCount":55,"isActivelyExploited":72,"cisaInfo":27,"otxData":27,"relatedBlogPosts":73,"seoMetadata":74,"configurations":99,"relatedVendorCves":107,"notableEvents":108},"CVE-2021-34993","What is CVE-2021-34993?","This vulnerability allows remote attackers to bypass authentication on affected installations of Commvault CommCell 11.22.22. Authentication is not required to exploit this vulnerability. The specific flaw exists within the CVSearchService service. The issue results from the lack of proper validation prior to authentication. An attacker can leverage this vulnerability to bypass authentication on the system. Was ZDI-CAN-13706.","This vulnerability allows remote attackers to bypass authentication on affected installations of Commvault CommCell 11.22.22. Authentication is not required ...","2022-01-13T22:15:12.94","2022-01-22T03:49:17.24",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},"zdi-disclosures@trendmicro.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":44,"ImpactScore":45,"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:P\u002FI:P\u002FA:P","PARTIAL",7.5,10,6.4,0.05424,[46,46,46,46,46,46,46],"Critical",[50],{"vendor":51,"product":52,"version":53,"criteria":54,"vulnerable":4},"commvault","commcell","11.22.22","cpe:2.3:a:commvault:commcell:11.22.22:*:*:*:*:*:*:*",1,[57],{"url":58,"source":59,"tags":60},"https:\u002F\u002Fwww.zerodayinitiative.com\u002Fadvisories\u002FZDI-21-1328\u002F","Zerodayinitiative",[61,62],"Third Party Advisory","VDB Entry",[64],{"id":65,"name":66,"description":67,"extendedDescription":68,"status":69,"abstraction":70,"structure":71},"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":75,"metaDescription":76,"keywords":77,"canonicalUrl":78,"structuredData":79},"What is CVE-2021-34993? Vulnerability Analysis | Security Advisory | EdgeProtect","Comprehensive analysis of CVE-2021-34993, a critical severity cyber security vulnerability from 2022. This vulnerability allows remote attackers to bypass au...","CVE-2021-34993, CVE-2021-34993 vulnerability, CVE-2021-34993 security, critical severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research, vulnerability assessment, cyber threats, 2022, CVSS score, exploit, patch, remediation, commvault security, commcell vulnerability","\u002Fwhat-is\u002Fcve-2021-34993",{"@context":80,"@type":81,"headline":75,"description":76,"datePublished":10,"dateModified":11,"author":82,"publisher":86,"about":90,"mainEntityOfPage":94,"articleSection":97,"keywords":98},"https:\u002F\u002Fschema.org","TechArticle",{"@type":83,"name":84,"url":85},"Organization","EdgeProtect","https:\u002F\u002Fedgeprotect.io",{"@type":83,"name":84,"url":85,"logo":87},{"@type":88,"url":89},"ImageObject","https:\u002F\u002Fedgeprotect.io\u002Fimg\u002Flogos\u002Fedgeprotect-logo-512.png",{"@type":91,"name":6,"description":92,"additionalType":93},"Thing","Cybersecurity Vulnerability","https:\u002F\u002Fschema.org\u002FSoftwareBug",{"@type":95,"@id":96},"WebPage","https:\u002F\u002Fedgeprotect.io\u002Fwhat-is\u002Fcve-2021-34993","Cybersecurity","CVE-2021-34993, CVE-2021-34993 vulnerability, CVE-2021-34993 security, critical severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research",[100],{"Operator":27,"Negate":27,"Nodes":101},[102],{"Operator":103,"Negate":27,"CPEMatch":104},"OR",[105],{"Vulnerable":4,"Criteria":54,"MatchCriteriaID":106,"VersionStartExcluding":27,"VersionStartIncluding":27,"VersionEndExcluding":27,"VersionEndIncluding":27},"A878ED91-1EF4-4B0E-9613-C4A089BC29F3",[],[109,116],{"id":110,"eventType":111,"eventTime":112,"details":113,"label":114,"color":115},"76ccd158-ff26-493f-8fc4-7e53e61a36aa","HIGH_EPSS_DELTA","2025-11-19T04:05:58.632548+00:00","Daily EPSS score increased by 0.110 on 2023-12-30","EPSS Score Increased","red",{"id":117,"eventType":118,"eventTime":119,"details":120,"label":121,"color":122},"837f9902-aff7-4447-89bc-7b71127002ed","LOW_EPSS_DELTA","2025-11-22T04:05:47.008726+00:00","Daily EPSS score decreased by 0.110 on 2023-12-30","EPSS Score Decreased","green",{"lastModified":11,"cacheTime":124,"version":40},1793227207279,{"score":126,"band":48,"action":127,"scoredAt":128},90,"Emergency patch","2026-10-28T06:52:52.187837+00:00"]