[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fXHsiPVT5p2wvhfpsPHtLxzMFm06Hec_xGa4stT504CY":3,"g5a-risk:CVE-2021-21837":138},{"success":4,"data":5,"meta":136},true,{"cveId":6,"title":7,"description":8,"shortDescription":9,"publishedDate":10,"lastModified":11,"cvssScore":12,"cvssVector":13,"cvssMetrics":14,"epssScore":47,"epssPercentile":27,"epssTimeSeries":48,"severity":49,"affectedProducts":50,"affectedProductsCount":60,"references":61,"referencesCount":76,"weaknesses":77,"weaknessesCount":60,"isActivelyExploited":93,"cisaInfo":27,"otxData":27,"relatedBlogPosts":94,"seoMetadata":95,"configurations":120,"relatedVendorCves":134,"notableEvents":135},"CVE-2021-21837","What is CVE-2021-21837?","Multiple exploitable integer overflow vulnerabilities exist within the MPEG-4 decoding functionality of the GPAC Project on Advanced Content library v1.0.1. A specially crafted MPEG-4 input can cause an integer overflow due to unchecked arithmetic resulting in a heap-based buffer overflow that causes memory corruption. An attacker can convince a user to open a video to trigger this vulnerability.","Multiple exploitable integer overflow vulnerabilities exist within the MPEG-4 decoding functionality of the GPAC Project on Advanced Content library v1.0.1. ...","2021-08-18T13:15:07.55","2022-05-31T19:01:47.903",8.8,"CVSS:3.1\u002FAV:N\u002FAC:L\u002FPR:N\u002FUI:R\u002FS:U\u002FC:H\u002FI:H\u002FA:H",{"CVSSMetricV31":15,"CVSSMetricV30":30,"CVSSMetricV2":37,"CVSSMetricV40":27},[16],{"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":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,"ExploitabilityScore":28,"ImpactScore":29},"talos-cna@cisco.com","Secondary",{"Version":35,"VectorString":36,"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":27,"ModifiedAttackVector":27,"ModifiedAttackComplexity":27,"ModifiedPrivilegesRequired":27,"ModifiedUserInteraction":27,"ModifiedScope":27,"ModifiedConfidentialityImpact":27,"ModifiedIntegrityImpact":27,"ModifiedAvailabilityImpact":27,"EnvironmentalScore":27,"EnvironmentalSeverity":27},"3.0","CVSS:3.0\u002FAV:N\u002FAC:L\u002FPR:N\u002FUI:R\u002FS:U\u002FC:H\u002FI:H\u002FA:H",[38],{"Source":17,"Type":18,"CVSSData":39,"BaseSeverity":42,"ExploitabilityScore":45,"ImpactScore":46,"ACInsufInfo":27,"ObtainAllPrivilege":27,"ObtainUserPrivilege":27,"ObtainOtherPrivilege":27,"UserInteractionRequired":4},{"Version":40,"VectorString":41,"AccessVector":21,"AccessComplexity":42,"Authentication":23,"ConfidentialityImpact":43,"IntegrityImpact":43,"AvailabilityImpact":43,"BaseScore":44,"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",6.8,8.6,6.4,0.0201,[47,47,47,47,47,47,47],"High",[51,55],{"vendor":52,"product":52,"version":53,"criteria":54,"vulnerable":4},"gpac","1.0.1","cpe:2.3:a:gpac:gpac:1.0.1:*:*:*:*:*:*:*",{"vendor":56,"product":57,"version":58,"criteria":59,"vulnerable":4},"debian","debian_linux","11.0","cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*",2,[62,69,73],{"url":63,"source":64,"tags":65},"https:\u002F\u002Ftalosintelligence.com\u002Fvulnerability_reports\u002FTALOS-2021-1297","Talosintelligence",[66,67,68],"Exploit","Technical Description","Third Party Advisory",{"url":70,"source":71,"tags":72},"https:\u002F\u002Fwww.debian.org\u002Fsecurity\u002F2021\u002Fdsa-4966","Debian",[68],{"url":74,"source":64,"tags":75},"https:\u002F\u002Fwww.talosintelligence.com\u002Fvulnerability_reports\u002FTALOS-2021-1297",[66,67,68],3,[78,86],{"id":79,"name":80,"description":81,"extendedDescription":82,"status":83,"abstraction":84,"structure":85},"CWE-190","Integer Overflow or Wraparound","The product performs a calculation that can\n         produce an integer overflow or wraparound when the logic\n         assumes that the resulting value will always be larger than\n         the original value. This occurs when an integer value is\n         incremented to a value that is too large to store in the\n         associated representation. When this occurs, the value may\n         become a very small or negative number.","","Stable","Base","Simple",{"id":87,"name":88,"description":89,"extendedDescription":82,"status":90,"abstraction":91,"structure":92},"CWE-680","Integer Overflow to Buffer Overflow","The product performs a calculation to determine how much memory to allocate, but an integer overflow can occur that causes less memory to be allocated than expected, leading to a buffer overflow.","Draft","Compound","Chain",false,[],{"title":96,"metaDescription":97,"keywords":98,"canonicalUrl":99,"structuredData":100},"What is CVE-2021-21837? Vulnerability Analysis | Security Advisory | EdgeProtect","Comprehensive analysis of CVE-2021-21837, a high severity cyber security vulnerability from 2021. Multiple exploitable integer overflow vulnerabilities exist...","CVE-2021-21837, CVE-2021-21837 vulnerability, CVE-2021-21837 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, gpac security, debian security, gpac vulnerability, debian_linux vulnerability","\u002Fwhat-is\u002Fcve-2021-21837",{"@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","EdgeProtect","https:\u002F\u002Fedgeprotect.io",{"@type":104,"name":105,"url":106,"logo":108},{"@type":109,"url":110},"ImageObject","https:\u002F\u002Fedgeprotect.io\u002Fimg\u002Flogos\u002Fedgeprotect-logo-512.png",{"@type":112,"name":6,"description":113,"additionalType":114},"Thing","Cybersecurity Vulnerability","https:\u002F\u002Fschema.org\u002FSoftwareBug",{"@type":116,"@id":117},"WebPage","https:\u002F\u002Fedgeprotect.io\u002Fwhat-is\u002Fcve-2021-21837","Cybersecurity","CVE-2021-21837, CVE-2021-21837 vulnerability, CVE-2021-21837 security, high severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research",[121,128],{"Operator":27,"Negate":27,"Nodes":122},[123],{"Operator":124,"Negate":27,"CPEMatch":125},"OR",[126],{"Vulnerable":4,"Criteria":54,"MatchCriteriaID":127,"VersionStartExcluding":27,"VersionStartIncluding":27,"VersionEndExcluding":27,"VersionEndIncluding":27},"82DD2D40-0A05-48FD-940D-32B4D8B51AB3",{"Operator":27,"Negate":27,"Nodes":129},[130],{"Operator":124,"Negate":27,"CPEMatch":131},[132],{"Vulnerable":4,"Criteria":59,"MatchCriteriaID":133,"VersionStartExcluding":27,"VersionStartIncluding":27,"VersionEndExcluding":27,"VersionEndIncluding":27},"FA6FEEC2-9F11-4643-8827-749718254FED",[],[],{"lastModified":11,"cacheTime":137,"version":40},1793230629604,{"score":139,"band":140,"action":141,"scoredAt":142},53,"Medium","Plan remediation","2026-10-28T06:51:40.401732+00:00"]