[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fCL26hKE3jXmJX9Yx6lCEpe2aK2ZMrT3WGKs-5z77rOA":3,"g5a-risk:CVE-2021-27649":118},{"success":4,"data":5,"meta":116},true,{"cveId":6,"title":7,"description":8,"shortDescription":9,"publishedDate":10,"lastModified":11,"cvssScore":12,"cvssVector":13,"cvssMetrics":14,"epssScore":43,"epssPercentile":27,"epssTimeSeries":44,"severity":45,"affectedProducts":46,"affectedProductsCount":55,"references":56,"referencesCount":55,"weaknesses":64,"weaknessesCount":73,"isActivelyExploited":74,"cisaInfo":27,"otxData":27,"relatedBlogPosts":75,"seoMetadata":76,"configurations":101,"relatedVendorCves":114,"notableEvents":115},"CVE-2021-27649","What is CVE-2021-27649?","Use after free vulnerability in file transfer protocol component in Synology DiskStation Manager (DSM) before 6.2.3-25426-3 allows remote attackers to execute arbitrary code via unspecified vectors.","Use after free vulnerability in file transfer protocol component in Synology DiskStation Manager (DSM) before 6.2.3-25426-3 allows remote attackers to execut...","2021-06-23T10:15:08.183","2025-01-14T19:29:55.853",9.8,"CVSS:3.1\u002FAV:N\u002FAC:L\u002FPR:N\u002FUI:N\u002FS:U\u002FC:H\u002FI:H\u002FA:H",{"CVSSMetricV31":15,"CVSSMetricV30":27,"CVSSMetricV2":34,"CVSSMetricV40":27},[16,30],{"Source":17,"Type":18,"CVSSData":19,"ExploitabilityScore":28,"ImpactScore":29},"security@synology.com","Secondary",{"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,{"Source":31,"Type":32,"CVSSData":33,"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},[35],{"Source":31,"Type":32,"CVSSData":36,"BaseSeverity":25,"ExploitabilityScore":41,"ImpactScore":42,"ACInsufInfo":27,"ObtainAllPrivilege":27,"ObtainUserPrivilege":27,"ObtainOtherPrivilege":27,"UserInteractionRequired":27},{"Version":37,"VectorString":38,"AccessVector":21,"AccessComplexity":22,"Authentication":23,"ConfidentialityImpact":39,"IntegrityImpact":39,"AvailabilityImpact":39,"BaseScore":40,"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",7.5,10,6.4,0.02007,[43,43,43,43,43,43,43],"Critical",[47,52],{"vendor":48,"product":49,"version":50,"criteria":51,"vulnerable":4},"synology","diskstation_manager","*","cpe:2.3:o:synology:diskstation_manager:*:*:*:*:*:*:*:*",{"vendor":48,"product":53,"version":50,"criteria":54,"vulnerable":4},"diskstation_manager_unified_controller","cpe:2.3:o:synology:diskstation_manager_unified_controller:*:*:*:*:*:*:*:*",2,[57,62],{"url":58,"source":59,"tags":60},"https:\u002F\u002Fwww.synology.com\u002Fsecurity\u002Fadvisory\u002FSynology_SA_20_26","Synology",[61],"Vendor Advisory",{"url":58,"source":59,"tags":63},[61],[65],{"id":66,"name":67,"description":68,"extendedDescription":69,"status":70,"abstraction":71,"structure":72},"CWE-416","Use After Free","The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory \"belongs\" to the code that operates on the new pointer.","","Stable","Variant","Simple",1,false,[],{"title":77,"metaDescription":78,"keywords":79,"canonicalUrl":80,"structuredData":81},"What is CVE-2021-27649? Vulnerability Analysis | Security Advisory | EdgeProtect","Comprehensive analysis of CVE-2021-27649, a critical severity cyber security vulnerability from 2021. 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