[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$ftTjH0-kOqeNyvUlajR_PGGN9uU_78Tu4eXhcfZEjxzs":3,"g5a-risk:CVE-2021-3625":122},{"success":4,"data":5,"meta":120},true,{"cveId":6,"title":7,"description":8,"shortDescription":9,"publishedDate":10,"lastModified":11,"cvssScore":12,"cvssVector":13,"cvssMetrics":14,"epssScore":49,"epssPercentile":27,"epssTimeSeries":50,"severity":51,"affectedProducts":52,"affectedProductsCount":58,"references":59,"referencesCount":58,"weaknesses":66,"weaknessesCount":80,"isActivelyExploited":81,"cisaInfo":27,"otxData":27,"relatedBlogPosts":82,"seoMetadata":83,"configurations":108,"relatedVendorCves":118,"notableEvents":119},"CVE-2021-3625","What is CVE-2021-3625?","Buffer overflow in Zephyr USB DFU DNLOAD. Zephyr versions >= v2.5.0 contain Heap-based Buffer Overflow (CWE-122). For more information, see https:\u002F\u002Fgithub.com\u002Fzephyrproject-rtos\u002Fzephyr\u002Fsecurity\u002Fadvisories\u002FGHSA-c3gr-hgvr-f363","Buffer overflow in Zephyr USB DFU DNLOAD. Zephyr versions >= v2.5.0 contain Heap-based Buffer Overflow (CWE-122). For more information, see https:\u002F\u002Fgithub.co...","2021-10-05T21:15:09.463","2021-10-13T19:53:34.403",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":40,"CVSSMetricV40":27},[16,30],{"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,{"Source":31,"Type":32,"CVSSData":33,"ExploitabilityScore":38,"ImpactScore":39},"vulnerabilities@zephyrproject.org","Secondary",{"Version":20,"VectorString":34,"AttackVector":35,"AttackComplexity":22,"PrivilegesRequired":23,"UserInteraction":23,"Scope":36,"ConfidentialityImpact":22,"IntegrityImpact":25,"AvailabilityImpact":25,"BaseScore":37,"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},"CVSS:3.1\u002FAV:A\u002FAC:L\u002FPR:N\u002FUI:N\u002FS:C\u002FC:L\u002FI:H\u002FA:H","ADJACENT_NETWORK","CHANGED",9.6,2.8,6,[41],{"Source":17,"Type":18,"CVSSData":42,"BaseSeverity":25,"ExploitabilityScore":47,"ImpactScore":48,"ACInsufInfo":27,"ObtainAllPrivilege":27,"ObtainUserPrivilege":27,"ObtainOtherPrivilege":27,"UserInteractionRequired":27},{"Version":43,"VectorString":44,"AccessVector":21,"AccessComplexity":22,"Authentication":23,"ConfidentialityImpact":45,"IntegrityImpact":45,"AvailabilityImpact":45,"BaseScore":46,"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",7.5,10,6.4,0.02312,[49,49,49,49,49,49,49],"Critical",[53],{"vendor":54,"product":55,"version":56,"criteria":57,"vulnerable":4},"zephyrproject","zephyr","*","cpe:2.3:o:zephyrproject:zephyr:*:*:*:*:*:*:*:*",1,[60],{"url":61,"source":62,"tags":63},"http:\u002F\u002Fgithub.com\u002Fzephyrproject-rtos\u002Fzephyr\u002Fsecurity\u002Fadvisories\u002FGHSA-c3gr-hgvr-f363","GitHub",[64,65],"Exploit","Third Party Advisory",[67,75],{"id":68,"name":69,"description":70,"extendedDescription":71,"status":72,"abstraction":73,"structure":74},"CWE-787","Out-of-bounds Write","The product writes data past the end, or before the beginning, of the intended buffer.","","Draft","Base","Simple",{"id":76,"name":77,"description":78,"extendedDescription":71,"status":72,"abstraction":79,"structure":74},"CWE-122","Heap-based Buffer Overflow","A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().","Variant",2,false,[],{"title":84,"metaDescription":85,"keywords":86,"canonicalUrl":87,"structuredData":88},"What is CVE-2021-3625? Vulnerability Analysis | Security Advisory | Precursor Intelligence","Comprehensive analysis of CVE-2021-3625, a critical severity cyber security vulnerability from 2021. Buffer overflow in Zephyr USB DFU DNLOAD. Zephyr version...","CVE-2021-3625, CVE-2021-3625 vulnerability, CVE-2021-3625 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, zephyrproject security, zephyr vulnerability","\u002Fwhat-is\u002Fcve-2021-3625",{"@context":89,"@type":90,"headline":84,"description":85,"datePublished":10,"dateModified":11,"author":91,"publisher":95,"about":99,"mainEntityOfPage":103,"articleSection":106,"keywords":107},"https:\u002F\u002Fschema.org","TechArticle",{"@type":92,"name":93,"url":94},"Organization","Precursor Intelligence","https:\u002F\u002Fprecursorintelligence.com",{"@type":92,"name":93,"url":94,"logo":96},{"@type":97,"url":98},"ImageObject","https:\u002F\u002Fprecursorintelligence.com\u002Fimg\u002Flogos\u002Feplogo.png",{"@type":100,"name":6,"description":101,"additionalType":102},"Thing","Cybersecurity Vulnerability","https:\u002F\u002Fschema.org\u002FSoftwareBug",{"@type":104,"@id":105},"WebPage","https:\u002F\u002Fprecursorintelligence.com\u002Fwhat-is\u002Fcve-2021-3625","Cybersecurity","CVE-2021-3625, CVE-2021-3625 vulnerability, CVE-2021-3625 security, critical severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research",[109],{"Operator":27,"Negate":27,"Nodes":110},[111],{"Operator":112,"Negate":27,"CPEMatch":113},"OR",[114],{"Vulnerable":4,"Criteria":57,"MatchCriteriaID":115,"VersionStartExcluding":27,"VersionStartIncluding":116,"VersionEndExcluding":117,"VersionEndIncluding":27},"6E4583D9-DA5A-48C0-BDCE-39616F872F87","2.5.0","2.7.0",[],[],{"lastModified":11,"cacheTime":121,"version":43},1792450351628,{"score":123,"band":124,"action":125,"scoredAt":126},55,"Medium","Plan remediation","2026-10-16T06:52:12.455221+00:00"]