[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fBfbzfKnw-4JoiA76MGQ2ISGgRofXD7bjIKY3nQ_GFAM":3,"g5a-risk:CVE-2021-22909":119},{"success":4,"data":5,"meta":117},true,{"cveId":6,"title":7,"description":8,"shortDescription":9,"publishedDate":10,"lastModified":11,"cvssScore":12,"cvssVector":13,"cvssMetrics":14,"epssScore":38,"epssPercentile":26,"epssTimeSeries":39,"severity":40,"affectedProducts":41,"affectedProductsCount":51,"references":52,"referencesCount":58,"weaknesses":59,"weaknessesCount":51,"isActivelyExploited":74,"cisaInfo":26,"otxData":26,"relatedBlogPosts":75,"seoMetadata":76,"configurations":101,"relatedVendorCves":115,"notableEvents":116},"CVE-2021-22909","What is CVE-2021-22909?","A vulnerability found in EdgeMAX EdgeRouter V2.0.9 and earlier could allow a malicious actor to execute a man-in-the-middle (MitM) attack during a firmware update. This vulnerability is fixed in EdgeMAX EdgeRouter V2.0.9-hotfix.1 and later.","A vulnerability found in EdgeMAX EdgeRouter V2.0.9 and earlier could allow a malicious actor to execute a man-in-the-middle (MitM) attack during a firmware u...","2021-05-27T12:15:08.117","2024-02-15T20:15:59.91",7.5,"CVSS:3.1\u002FAV:N\u002FAC:H\u002FPR:N\u002FUI:R\u002FS:U\u002FC:H\u002FI:H\u002FA:H",{"CVSSMetricV31":15,"CVSSMetricV30":26,"CVSSMetricV2":29,"CVSSMetricV40":26},[16],{"Source":17,"Type":18,"CVSSData":19,"ExploitabilityScore":27,"ImpactScore":28},"nvd@nist.gov","Primary",{"Version":20,"VectorString":13,"AttackVector":21,"AttackComplexity":22,"PrivilegesRequired":23,"UserInteraction":24,"Scope":25,"ConfidentialityImpact":22,"IntegrityImpact":22,"AvailabilityImpact":22,"BaseScore":12,"BaseSeverity":22,"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","NETWORK","HIGH","NONE","REQUIRED","UNCHANGED",null,1.6,5.9,[30],{"Source":17,"Type":18,"CVSSData":31,"BaseSeverity":22,"ExploitabilityScore":36,"ImpactScore":37,"ACInsufInfo":26,"ObtainAllPrivilege":26,"ObtainUserPrivilege":26,"ObtainOtherPrivilege":26,"UserInteractionRequired":4},{"Version":32,"VectorString":33,"AccessVector":21,"AccessComplexity":22,"Authentication":23,"ConfidentialityImpact":34,"IntegrityImpact":34,"AvailabilityImpact":34,"BaseScore":35,"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:H\u002FAu:N\u002FC:C\u002FI:C\u002FA:C","COMPLETE",7.6,4.9,10,0.01292,[38,38,38,38,38,38,38],"High",[42,47],{"vendor":43,"product":44,"version":45,"criteria":46,"vulnerable":4},"ui","edgemax_edgerouter_firmware","*","cpe:2.3:o:ui:edgemax_edgerouter_firmware:*:*:*:*:*:*:*:*",{"vendor":43,"product":48,"version":49,"criteria":50,"vulnerable":4},"edgemax_edgerouter","-","cpe:2.3:h:ui:edgemax_edgerouter:-:*:*:*:*:*:*:*",2,[53],{"url":54,"source":55,"tags":56},"https:\u002F\u002Fcommunity.ui.com\u002Freleases\u002FSecurity-Advisory-Bulletin-018-018\u002Fcfa1566b-4bf8-427b-8cc7-8cffba3a93a4","Ui",[57],"Vendor Advisory",1,[60,68],{"id":61,"name":62,"description":63,"extendedDescription":64,"status":65,"abstraction":66,"structure":67},"CWE-295","Improper Certificate Validation","The product does not validate, or incorrectly validates, a certificate.","When a certificate is invalid or malicious, it might allow an attacker to spoof a trusted entity by interfering in the communication path between the host and client. The product might connect to a malicious host while believing it is a trusted host, or the product might be deceived into accepting spoofed data that appears to originate from a trusted host.","Draft","Base","Simple",{"id":69,"name":70,"description":71,"extendedDescription":72,"status":65,"abstraction":73,"structure":67},"CWE-300","Channel Accessible by Non-Endpoint","The product does not adequately verify the identity of actors at both ends of a communication channel, or does not adequately ensure the integrity of the channel, in a way that allows the channel to be accessed or influenced by an actor that is not an endpoint.","In order to establish secure communication between two parties, it is often important to adequately verify the identity of entities at each end of the communication channel. Inadequate or inconsistent verification may result in insufficient or incorrect identification of either communicating entity. This can have negative consequences such as misplaced trust in the entity at the other end of the channel. An attacker can leverage this by interposing between the communicating entities and masquerading as the original entity. In the absence of sufficient verification of identity, such an attacker can eavesdrop and potentially modify the communication between the original entities.","Class",false,[],{"title":77,"metaDescription":78,"keywords":79,"canonicalUrl":80,"structuredData":81},"What is CVE-2021-22909? Vulnerability Analysis | Security Advisory | Precursor Intelligence","Comprehensive analysis of CVE-2021-22909, a high severity cyber security vulnerability from 2021. A vulnerability found in EdgeMAX EdgeRouter V2.0.9 and earl...","CVE-2021-22909, CVE-2021-22909 vulnerability, CVE-2021-22909 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, ui security, edgemax_edgerouter_firmware vulnerability, edgemax_edgerouter vulnerability","\u002Fwhat-is\u002Fcve-2021-22909",{"@context":82,"@type":83,"headline":77,"description":78,"datePublished":10,"dateModified":11,"author":84,"publisher":88,"about":92,"mainEntityOfPage":96,"articleSection":99,"keywords":100},"https:\u002F\u002Fschema.org","TechArticle",{"@type":85,"name":86,"url":87},"Organization","Precursor Intelligence","https:\u002F\u002Fprecursorintelligence.com",{"@type":85,"name":86,"url":87,"logo":89},{"@type":90,"url":91},"ImageObject","https:\u002F\u002Fprecursorintelligence.com\u002Fimg\u002Flogos\u002Feplogo.png",{"@type":93,"name":6,"description":94,"additionalType":95},"Thing","Cybersecurity Vulnerability","https:\u002F\u002Fschema.org\u002FSoftwareBug",{"@type":97,"@id":98},"WebPage","https:\u002F\u002Fprecursorintelligence.com\u002Fwhat-is\u002Fcve-2021-22909","Cybersecurity","CVE-2021-22909, CVE-2021-22909 vulnerability, CVE-2021-22909 security, high severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research",[102],{"Operator":103,"Negate":26,"Nodes":104},"AND",[105,111],{"Operator":106,"Negate":26,"CPEMatch":107},"OR",[108],{"Vulnerable":4,"Criteria":46,"MatchCriteriaID":109,"VersionStartExcluding":26,"VersionStartIncluding":26,"VersionEndExcluding":26,"VersionEndIncluding":110},"6A12CD83-D61F-4E91-92A3-04EF0C331A3F","2.0.9",{"Operator":106,"Negate":26,"CPEMatch":112},[113],{"Vulnerable":26,"Criteria":50,"MatchCriteriaID":114,"VersionStartExcluding":26,"VersionStartIncluding":26,"VersionEndExcluding":26,"VersionEndIncluding":26},"A1F14C34-7687-425C-AF1A-EF3B97E1B65B",[],[],{"lastModified":11,"cacheTime":118,"version":32},1792367960949,{"score":120,"band":121,"action":122,"scoredAt":123},46,"Medium","Plan remediation","2026-10-16T06:51:13.845175+00:00"]