[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$f56930OwC1qFRt_1WCoqB24AofVI_ZCxOqLtRHLfoyEU":3,"g5a-risk:CVE-2021-21017":155},{"success":4,"data":5,"meta":153},true,{"cveId":6,"title":7,"description":8,"shortDescription":9,"publishedDate":10,"lastModified":11,"cvssScore":12,"cvssVector":13,"cvssMetrics":14,"epssScore":42,"epssPercentile":27,"epssTimeSeries":43,"severity":44,"affectedProducts":45,"affectedProductsCount":69,"references":70,"referencesCount":78,"weaknesses":79,"weaknessesCount":78,"isActivelyExploited":4,"cisaInfo":93,"otxData":27,"relatedBlogPosts":94,"seoMetadata":95,"configurations":120,"relatedVendorCves":151,"notableEvents":152},"CVE-2021-21017","What is CVE-2021-21017?","Acrobat Reader DC versions versions 2020.013.20074 (and earlier), 2020.001.30018 (and earlier) and 2017.011.30188 (and earlier) are affected by a heap-based buffer overflow vulnerability. An unauthenticated attacker could leverage this vulnerability to achieve arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.","Acrobat Reader DC versions versions 2020.013.20074 (and earlier), 2020.001.30018 (and earlier) and 2017.011.30188 (and earlier) are affected by a heap-based ...","2021-02-11T20:15:13.997","2025-02-13T17:30:38.34",8.8,"CVSS:3.1\u002FAV:N\u002FAC:L\u002FPR:N\u002FUI:R\u002FS:U\u002FC:H\u002FI:H\u002FA:H",{"CVSSMetricV31":15,"CVSSMetricV30":27,"CVSSMetricV2":30,"CVSSMetricV40":27},[16],{"Source":17,"Type":18,"CVSSData":19,"ExploitabilityScore":28,"ImpactScore":29},"psirt@adobe.com","Secondary",{"Version":20,"VectorString":13,"AttackVector":21,"AttackComplexity":22,"PrivilegesRequired":23,"UserInteraction":24,"Scope":25,"ConfidentialityImpact":26,"IntegrityImpact":26,"AvailabilityImpact":26,"BaseScore":12,"BaseSeverity":26,"ExploitCodeMaturity":27,"RemediationLevel":27,"ReportConfidence":27,"TemporalScore":27,"TemporalSeverity":27,"ConfidentialityRequirement":27,"IntegrityRequirement":27,"AvailabilityRequirement":26,"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","REQUIRED","UNCHANGED","HIGH",null,2.8,5.9,[31],{"Source":32,"Type":33,"CVSSData":34,"BaseSeverity":37,"ExploitabilityScore":40,"ImpactScore":41,"ACInsufInfo":27,"ObtainAllPrivilege":27,"ObtainUserPrivilege":27,"ObtainOtherPrivilege":27,"UserInteractionRequired":4},"nvd@nist.gov","Primary",{"Version":35,"VectorString":36,"AccessVector":21,"AccessComplexity":37,"Authentication":23,"ConfidentialityImpact":38,"IntegrityImpact":38,"AvailabilityImpact":38,"BaseScore":39,"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:M\u002FAu:N\u002FC:P\u002FI:P\u002FA:P","MEDIUM","PARTIAL",6.8,8.6,6.4,0.86326,[42,42,42,42,42,42,42],"High",[46,51,54,57,60,65],{"vendor":47,"product":48,"version":49,"criteria":50,"vulnerable":4},"adobe","acrobat","*","cpe:2.3:a:adobe:acrobat:*:*:*:*:classic:*:*:*",{"vendor":47,"product":52,"version":49,"criteria":53,"vulnerable":4},"acrobat_dc","cpe:2.3:a:adobe:acrobat_dc:*:*:*:*:continuous:*:*:*",{"vendor":47,"product":55,"version":49,"criteria":56,"vulnerable":4},"acrobat_reader","cpe:2.3:a:adobe:acrobat_reader:*:*:*:*:classic:*:*:*",{"vendor":47,"product":58,"version":49,"criteria":59,"vulnerable":4},"acrobat_reader_dc","cpe:2.3:a:adobe:acrobat_reader_dc:*:*:*:*:continuous:*:*:*",{"vendor":61,"product":62,"version":63,"criteria":64,"vulnerable":4},"apple","macos","-","cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*",{"vendor":66,"product":67,"version":63,"criteria":68,"vulnerable":4},"microsoft","windows","cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*",6,[71,76],{"url":72,"source":73,"tags":74},"https:\u002F\u002Fhelpx.adobe.com\u002Fsecurity\u002Fproducts\u002Facrobat\u002Fapsb21-09.html","Adobe",[75],"Vendor Advisory",{"url":72,"source":73,"tags":77},[75],2,[80,88],{"id":81,"name":82,"description":83,"extendedDescription":84,"status":85,"abstraction":86,"structure":87},"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":89,"name":90,"description":91,"extendedDescription":84,"status":85,"abstraction":92,"structure":87},"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",{"shortDescription":84,"requiredAction":84,"vulnerabilityName":84,"dateAdded":27},[],{"title":96,"metaDescription":97,"keywords":98,"canonicalUrl":99,"structuredData":100},"What is CVE-2021-21017? Vulnerability Analysis | Security Advisory | Precursor Intelligence","Comprehensive analysis of CVE-2021-21017, a high severity cyber security vulnerability from 2021. High exploit probability (86.3%). Acrobat Reader DC version...","CVE-2021-21017, CVE-2021-21017 vulnerability, CVE-2021-21017 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, adobe security, apple security, microsoft security, acrobat vulnerability, acrobat_dc vulnerability, acrobat_reader vulnerability, acrobat_reader_dc vulnerability, macos vulnerability","\u002Fwhat-is\u002Fcve-2021-21017",{"@context":101,"@type":102,"headline":96,"description":97,"datePublished":10,"dateModified":11,"author":103,"publisher":107,"about":111,"mainEntityOfPage":115,"articleSection":118,"keywords":119},"https:\u002F\u002Fschema.org","TechArticle",{"@type":104,"name":105,"url":106},"Organization","Precursor Intelligence","https:\u002F\u002Fprecursorintelligence.com",{"@type":104,"name":105,"url":106,"logo":108},{"@type":109,"url":110},"ImageObject","https:\u002F\u002Fprecursorintelligence.com\u002Fimg\u002Flogos\u002Feplogo.png",{"@type":112,"name":6,"description":113,"additionalType":114},"Thing","Cybersecurity Vulnerability","https:\u002F\u002Fschema.org\u002FSoftwareBug",{"@type":116,"@id":117},"WebPage","https:\u002F\u002Fprecursorintelligence.com\u002Fwhat-is\u002Fcve-2021-21017","Cybersecurity","CVE-2021-21017, CVE-2021-21017 vulnerability, CVE-2021-21017 security, high severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research",[121],{"Operator":122,"Negate":27,"Nodes":123},"AND",[124,145],{"Operator":125,"Negate":27,"CPEMatch":126},"OR",[127,131,135,138,140,143],{"Vulnerable":4,"Criteria":50,"MatchCriteriaID":128,"VersionStartExcluding":27,"VersionStartIncluding":129,"VersionEndExcluding":27,"VersionEndIncluding":130},"CC23AA00-FC0B-4CA7-83CF-D11CB679630C","17.0","17.011.30188",{"Vulnerable":4,"Criteria":50,"MatchCriteriaID":132,"VersionStartExcluding":27,"VersionStartIncluding":133,"VersionEndExcluding":27,"VersionEndIncluding":134},"2B0D84BC-88D8-4B29-BF4C-DE3D27D0EFF3","20.0","20.001.30018",{"Vulnerable":4,"Criteria":53,"MatchCriteriaID":136,"VersionStartExcluding":27,"VersionStartIncluding":27,"VersionEndExcluding":27,"VersionEndIncluding":137},"BAA2B3BC-EA31-445B-9D6F-1A3D86030F98","20.013.20074",{"Vulnerable":4,"Criteria":56,"MatchCriteriaID":139,"VersionStartExcluding":27,"VersionStartIncluding":129,"VersionEndExcluding":27,"VersionEndIncluding":130},"33305687-D4B1-4A48-B6B3-0619038243BF",{"Vulnerable":4,"Criteria":56,"MatchCriteriaID":141,"VersionStartExcluding":27,"VersionStartIncluding":133,"VersionEndExcluding":27,"VersionEndIncluding":142},"4B989379-B8B7-4FA7-9319-F0FB8CA2253C","20.001.300183",{"Vulnerable":4,"Criteria":59,"MatchCriteriaID":144,"VersionStartExcluding":27,"VersionStartIncluding":27,"VersionEndExcluding":27,"VersionEndIncluding":137},"E5BC145F-0696-4B2F-AEC5-4FDB25E8EA6E",{"Operator":125,"Negate":27,"CPEMatch":146},[147,149],{"Vulnerable":27,"Criteria":64,"MatchCriteriaID":148,"VersionStartExcluding":27,"VersionStartIncluding":27,"VersionEndExcluding":27,"VersionEndIncluding":27},"387021A0-AF36-463C-A605-32EA7DAC172E",{"Vulnerable":27,"Criteria":68,"MatchCriteriaID":150,"VersionStartExcluding":27,"VersionStartIncluding":27,"VersionEndExcluding":27,"VersionEndIncluding":27},"A2572D17-1DE6-457B-99CC-64AFD54487EA",[],[],{"lastModified":11,"cacheTime":154,"version":35},1792353336327,{"score":156,"band":44,"action":157,"scoredAt":158},78,"Emergency patch","2026-10-16T06:50:27.753511+00:00"]