[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fn-Z624uYjuFzuDdzqhBNK-vqKeQVMFF7tMn07QFrmaE":3,"g5a-risk:CVE-2021-34716":129},{"success":4,"data":5,"meta":127},true,{"cveId":6,"title":7,"description":8,"shortDescription":9,"publishedDate":10,"lastModified":11,"cvssScore":12,"cvssVector":13,"cvssMetrics":14,"epssScore":47,"epssPercentile":26,"epssTimeSeries":48,"severity":49,"affectedProducts":50,"affectedProductsCount":59,"references":60,"referencesCount":67,"weaknesses":68,"weaknessesCount":59,"isActivelyExploited":84,"cisaInfo":26,"otxData":26,"relatedBlogPosts":85,"seoMetadata":86,"configurations":111,"relatedVendorCves":125,"notableEvents":126},"CVE-2021-34716","What is CVE-2021-34716?","A vulnerability in the web-based management interface of Cisco Expressway Series and Cisco TelePresence Video Communication Server (VCS) could allow an authenticated, remote attacker to execute arbitrary code on the underlying operating system as the root user. This vulnerability is due to incorrect handling of certain crafted software images that are uploaded to the affected device. An attacker could exploit this vulnerability by authenticating to the system as an administrative user and then uploading specific crafted software images to the affected device. A successful exploit could allow the attacker to execute arbitrary code on the underlying operating system as the root user.","A vulnerability in the web-based management interface of Cisco Expressway Series and Cisco TelePresence Video Communication Server (VCS) could allow an authe...","2021-08-18T20:15:07.3","2023-11-07T03:36:11.123",7.2,"CVSS:3.1\u002FAV:N\u002FAC:L\u002FPR:H\u002FUI:N\u002FS:U\u002FC:H\u002FI:H\u002FA:H",{"CVSSMetricV31":15,"CVSSMetricV30":26,"CVSSMetricV2":37,"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":23,"UserInteraction":24,"Scope":25,"ConfidentialityImpact":23,"IntegrityImpact":23,"AvailabilityImpact":23,"BaseScore":12,"BaseSeverity":23,"ExploitCodeMaturity":26,"RemediationLevel":26,"ReportConfidence":26,"TemporalScore":26,"TemporalSeverity":26,"ConfidentialityRequirement":26,"IntegrityRequirement":26,"AvailabilityRequirement":23,"ModifiedAttackVector":26,"ModifiedAttackComplexity":26,"ModifiedPrivilegesRequired":26,"ModifiedUserInteraction":26,"ModifiedScope":26,"ModifiedConfidentialityImpact":26,"ModifiedIntegrityImpact":26,"ModifiedAvailabilityImpact":26,"EnvironmentalScore":26,"EnvironmentalSeverity":26},"3.1","NETWORK","LOW","HIGH","NONE","UNCHANGED",null,1.2,5.9,{"Source":30,"Type":31,"CVSSData":32,"ExploitabilityScore":27,"ImpactScore":36},"d1c1063e-7a18-46af-9102-31f8928bc633","Secondary",{"Version":20,"VectorString":33,"AttackVector":21,"AttackComplexity":22,"PrivilegesRequired":23,"UserInteraction":24,"Scope":25,"ConfidentialityImpact":23,"IntegrityImpact":23,"AvailabilityImpact":22,"BaseScore":34,"BaseSeverity":35,"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},"CVSS:3.1\u002FAV:N\u002FAC:L\u002FPR:H\u002FUI:N\u002FS:U\u002FC:H\u002FI:H\u002FA:L",6.7,"MEDIUM",5.5,[38],{"Source":17,"Type":18,"CVSSData":39,"BaseSeverity":23,"ExploitabilityScore":45,"ImpactScore":46,"ACInsufInfo":26,"ObtainAllPrivilege":26,"ObtainUserPrivilege":26,"ObtainOtherPrivilege":26,"UserInteractionRequired":26},{"Version":40,"VectorString":41,"AccessVector":21,"AccessComplexity":22,"Authentication":42,"ConfidentialityImpact":43,"IntegrityImpact":43,"AvailabilityImpact":43,"BaseScore":44,"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:C\u002FI:C\u002FA:C","SINGLE","COMPLETE",9,8,10,0.02395,[47,47,47,47,47,47,47],"High",[51,56],{"vendor":52,"product":53,"version":54,"criteria":55,"vulnerable":4},"cisco","expressway","*","cpe:2.3:a:cisco:expressway:*:*:*:*:*:*:*:*",{"vendor":52,"product":57,"version":54,"criteria":58,"vulnerable":4},"telepresence_video_communication_server","cpe:2.3:a:cisco:telepresence_video_communication_server:*:*:*:*:*:*:*:*",2,[61],{"url":62,"source":63,"tags":64},"https:\u002F\u002Ftools.cisco.com\u002Fsecurity\u002Fcenter\u002Fcontent\u002FCiscoSecurityAdvisory\u002Fcisco-sa-ewrce-QPynNCjh","Cisco",[65,66],"Patch","Vendor Advisory",1,[69,77],{"id":70,"name":71,"description":72,"extendedDescription":73,"status":74,"abstraction":75,"structure":76},"CWE-460","Improper Cleanup on Thrown Exception","The product does not clean up its state or incorrectly cleans up its state when an exception is thrown, leading to unexpected state or control flow.","Often, when functions or loops become complicated, some level of resource cleanup is needed throughout execution. Exceptions can disturb the flow of the code and prevent the necessary cleanup from happening.","Draft","Base","Simple",{"id":78,"name":79,"description":80,"extendedDescription":81,"status":82,"abstraction":83,"structure":76},"CWE-755","Improper Handling of Exceptional Conditions","The product does not handle or incorrectly handles an exceptional condition.","","Incomplete","Class",false,[],{"title":87,"metaDescription":88,"keywords":89,"canonicalUrl":90,"structuredData":91},"What is CVE-2021-34716? Vulnerability Analysis | Security Advisory | Precursor Intelligence","Comprehensive analysis of CVE-2021-34716, a high severity cyber security vulnerability from 2021. A vulnerability in the web-based management interface of Ci...","CVE-2021-34716, CVE-2021-34716 vulnerability, CVE-2021-34716 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, cisco security, expressway vulnerability, telepresence_video_communication_server vulnerability","\u002Fwhat-is\u002Fcve-2021-34716",{"@context":92,"@type":93,"headline":87,"description":88,"datePublished":10,"dateModified":11,"author":94,"publisher":98,"about":102,"mainEntityOfPage":106,"articleSection":109,"keywords":110},"https:\u002F\u002Fschema.org","TechArticle",{"@type":95,"name":96,"url":97},"Organization","Precursor Intelligence","https:\u002F\u002Fprecursorintelligence.com",{"@type":95,"name":96,"url":97,"logo":99},{"@type":100,"url":101},"ImageObject","https:\u002F\u002Fprecursorintelligence.com\u002Fimg\u002Flogos\u002Feplogo.png",{"@type":103,"name":6,"description":104,"additionalType":105},"Thing","Cybersecurity Vulnerability","https:\u002F\u002Fschema.org\u002FSoftwareBug",{"@type":107,"@id":108},"WebPage","https:\u002F\u002Fprecursorintelligence.com\u002Fwhat-is\u002Fcve-2021-34716","Cybersecurity","CVE-2021-34716, CVE-2021-34716 vulnerability, CVE-2021-34716 security, high severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research",[112],{"Operator":26,"Negate":26,"Nodes":113},[114],{"Operator":115,"Negate":26,"CPEMatch":116},"OR",[117,121],{"Vulnerable":4,"Criteria":55,"MatchCriteriaID":118,"VersionStartExcluding":26,"VersionStartIncluding":119,"VersionEndExcluding":120,"VersionEndIncluding":26},"166EC2E2-2F58-4E14-B7D5-199D6F2AF2C6","x8.6.0","x14.1",{"Vulnerable":4,"Criteria":58,"MatchCriteriaID":122,"VersionStartExcluding":26,"VersionStartIncluding":123,"VersionEndExcluding":26,"VersionEndIncluding":124},"C5D50DF5-EAE1-4923-AC00-67AA11D3C162","x8.6","x14.0.3",[],[],{"lastModified":11,"cacheTime":128,"version":40},1792356163216,{"score":130,"band":131,"action":132,"scoredAt":133},48,"Medium","Plan remediation","2026-10-16T06:51:51.914864+00:00"]