[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$ftSwhq_Onw7Y-mGQwSHxmRTffOrHJMcggT_duYHlGo88":3,"g5a-risk:CVE-2020-25681":196},{"success":4,"data":5,"meta":194},true,{"cveId":6,"title":7,"description":8,"shortDescription":9,"publishedDate":10,"lastModified":11,"cvssScore":12,"cvssVector":13,"cvssMetrics":14,"epssScore":42,"epssPercentile":25,"epssTimeSeries":43,"severity":44,"affectedProducts":45,"affectedProductsCount":67,"references":68,"referencesCount":117,"weaknesses":118,"weaknessesCount":126,"isActivelyExploited":41,"cisaInfo":25,"otxData":25,"relatedBlogPosts":127,"seoMetadata":128,"configurations":153,"relatedVendorCves":178,"notableEvents":179},"CVE-2020-25681","What is CVE-2020-25681?","A flaw was found in dnsmasq before version 2.83. A heap-based buffer overflow was discovered in the way RRSets are sorted before validating with DNSSEC data. An attacker on the network, who can forge DNS replies such as that they are accepted as valid, could use this flaw to cause a buffer overflow with arbitrary data in a heap memory segment, possibly executing code on the machine. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.","A flaw was found in dnsmasq before version 2.83. A heap-based buffer overflow was discovered in the way RRSets are sorted before validating with DNSSEC data....","2021-01-20T17:15:12.843","2025-11-04T20:15:56.797",8.1,"CVSS:3.1\u002FAV:N\u002FAC:H\u002FPR:N\u002FUI:N\u002FS:U\u002FC:H\u002FI:H\u002FA:H",{"CVSSMetricV31":15,"CVSSMetricV30":28,"CVSSMetricV2":29,"CVSSMetricV40":25},[16],{"Source":17,"Type":18,"CVSSData":19,"ExploitabilityScore":26,"ImpactScore":27},"nvd@nist.gov","Primary",{"Version":20,"VectorString":13,"AttackVector":21,"AttackComplexity":22,"PrivilegesRequired":23,"UserInteraction":23,"Scope":24,"ConfidentialityImpact":22,"IntegrityImpact":22,"AvailabilityImpact":22,"BaseScore":12,"BaseSeverity":22,"ExploitCodeMaturity":25,"RemediationLevel":25,"ReportConfidence":25,"TemporalScore":25,"TemporalSeverity":25,"ConfidentialityRequirement":25,"IntegrityRequirement":25,"AvailabilityRequirement":25,"ModifiedAttackVector":25,"ModifiedAttackComplexity":25,"ModifiedPrivilegesRequired":25,"ModifiedUserInteraction":25,"ModifiedScope":25,"ModifiedConfidentialityImpact":25,"ModifiedIntegrityImpact":25,"ModifiedAvailabilityImpact":25,"EnvironmentalScore":25,"EnvironmentalSeverity":25},"3.1","NETWORK","HIGH","NONE","UNCHANGED",null,2.2,5.9,[],[30],{"Source":17,"Type":18,"CVSSData":31,"BaseSeverity":22,"ExploitabilityScore":39,"ImpactScore":40,"ACInsufInfo":41,"ObtainAllPrivilege":41,"ObtainUserPrivilege":41,"ObtainOtherPrivilege":41,"UserInteractionRequired":41},{"Version":32,"VectorString":33,"AccessVector":21,"AccessComplexity":34,"Authentication":23,"ConfidentialityImpact":35,"IntegrityImpact":35,"AvailabilityImpact":36,"BaseScore":37,"BaseSeverity":38,"Exploitability":25,"RemediationLevel":25,"ReportConfidence":25,"TemporalScore":25,"CollateralDamagePotential":25,"TargetDistribution":25,"ConfidentialityRequirement":25,"IntegrityRequirement":25,"AvailabilityRequirement":25,"EnvironmentalScore":25},"2.0","AV:N\u002FAC:M\u002FAu:N\u002FC:P\u002FI:P\u002FA:C","MEDIUM","PARTIAL","COMPLETE",8.3,"",8.6,8.5,false,0.81191,[42,42,42,42,42,42,42],"High",[46,51,56,59,64],{"vendor":47,"product":48,"version":49,"criteria":50,"vulnerable":4},"thekelleys","dnsmasq","*","cpe:2.3:a:thekelleys:dnsmasq:*:*:*:*:*:*:*:*",{"vendor":52,"product":53,"version":54,"criteria":55,"vulnerable":4},"fedoraproject","fedora","32","cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*",{"vendor":52,"product":53,"version":57,"criteria":58,"vulnerable":4},"33","cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*",{"vendor":60,"product":61,"version":62,"criteria":63,"vulnerable":4},"debian","debian_linux","9.0","cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*",{"vendor":60,"product":61,"version":65,"criteria":66,"vulnerable":4},"10.0","cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",5,[69,76,81,85,88,92,95,99,101,103,105,107,109,111,113],{"url":70,"source":71,"tags":72},"https:\u002F\u002Fbugzilla.redhat.com\u002Fshow_bug.cgi?id=1881875","Red Hat",[73,74,75],"Issue Tracking","Patch","Third Party Advisory",{"url":77,"source":78,"tags":79},"https:\u002F\u002Flists.debian.org\u002Fdebian-lts-announce\u002F2021\u002F03\u002Fmsg00027.html","Debian",[80,75],"Mailing List",{"url":82,"source":83,"tags":84},"https:\u002F\u002Flists.fedoraproject.org\u002Farchives\u002Flist\u002Fpackage-announce%40lists.fedoraproject.org\u002Fmessage\u002FQGB7HL3OWHTLEPSMLDGOMXQKG3KM2QME\u002F","Fedoraproject",[],{"url":86,"source":83,"tags":87},"https:\u002F\u002Flists.fedoraproject.org\u002Farchives\u002Flist\u002Fpackage-announce%40lists.fedoraproject.org\u002Fmessage\u002FWYW3IR6APUSKOYKL5FT3ACTIHWHGQY32\u002F",[],{"url":89,"source":90,"tags":91},"https:\u002F\u002Fsecurity.gentoo.org\u002Fglsa\u002F202101-17","Gentoo",[75],{"url":93,"source":78,"tags":94},"https:\u002F\u002Fwww.debian.org\u002Fsecurity\u002F2021\u002Fdsa-4844",[75],{"url":96,"source":97,"tags":98},"https:\u002F\u002Fwww.jsof-tech.com\u002Fdisclosures\u002Fdnspooq\u002F","Jsof-tech",[75],{"url":70,"source":71,"tags":100},[73,74,75],{"url":77,"source":78,"tags":102},[80,75],{"url":82,"source":83,"tags":104},[],{"url":86,"source":83,"tags":106},[],{"url":89,"source":90,"tags":108},[75],{"url":93,"source":78,"tags":110},[75],{"url":96,"source":97,"tags":112},[75],{"url":114,"source":115,"tags":116},"https:\u002F\u002Fwww.kb.cert.org\u002Fvuls\u002Fid\u002F434904","Cert",[],15,[119],{"id":120,"name":121,"description":122,"extendedDescription":38,"status":123,"abstraction":124,"structure":125},"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().","Draft","Variant","Simple",1,[],{"title":129,"metaDescription":130,"keywords":131,"canonicalUrl":132,"structuredData":133},"What is CVE-2020-25681? Vulnerability Analysis | Security Advisory | Precursor Intelligence","Comprehensive analysis of CVE-2020-25681, a high severity cyber security vulnerability from 2021. High exploit probability (81.2%). A flaw was found in dnsma...","CVE-2020-25681, CVE-2020-25681 vulnerability, CVE-2020-25681 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, thekelleys security, fedoraproject security, debian security, dnsmasq vulnerability, fedora vulnerability, debian_linux vulnerability, high risk vulnerability, actively exploited","\u002Fwhat-is\u002Fcve-2020-25681",{"@context":134,"@type":135,"headline":129,"description":130,"datePublished":10,"dateModified":11,"author":136,"publisher":140,"about":144,"mainEntityOfPage":148,"articleSection":151,"keywords":152},"https:\u002F\u002Fschema.org","TechArticle",{"@type":137,"name":138,"url":139},"Organization","Precursor Intelligence","https:\u002F\u002Fprecursorintelligence.com",{"@type":137,"name":138,"url":139,"logo":141},{"@type":142,"url":143},"ImageObject","https:\u002F\u002Fprecursorintelligence.com\u002Fimg\u002Flogos\u002Feplogo.png",{"@type":145,"name":6,"description":146,"additionalType":147},"Thing","Cybersecurity Vulnerability","https:\u002F\u002Fschema.org\u002FSoftwareBug",{"@type":149,"@id":150},"WebPage","https:\u002F\u002Fprecursorintelligence.com\u002Fwhat-is\u002Fcve-2020-25681","Cybersecurity","CVE-2020-25681, CVE-2020-25681 vulnerability, CVE-2020-25681 security, high severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research",[154,162,170],{"Operator":25,"Negate":25,"Nodes":155},[156],{"Operator":157,"Negate":41,"CPEMatch":158},"OR",[159],{"Vulnerable":4,"Criteria":50,"MatchCriteriaID":160,"VersionStartExcluding":25,"VersionStartIncluding":25,"VersionEndExcluding":161,"VersionEndIncluding":25},"F38115DF-0F5C-442D-83D4-1125AAB4E2B7","2.83",{"Operator":25,"Negate":25,"Nodes":163},[164],{"Operator":157,"Negate":41,"CPEMatch":165},[166,168],{"Vulnerable":4,"Criteria":55,"MatchCriteriaID":167,"VersionStartExcluding":25,"VersionStartIncluding":25,"VersionEndExcluding":25,"VersionEndIncluding":25},"36D96259-24BD-44E2-96D9-78CE1D41F956",{"Vulnerable":4,"Criteria":58,"MatchCriteriaID":169,"VersionStartExcluding":25,"VersionStartIncluding":25,"VersionEndExcluding":25,"VersionEndIncluding":25},"E460AA51-FCDA-46B9-AE97-E6676AA5E194",{"Operator":25,"Negate":25,"Nodes":171},[172],{"Operator":157,"Negate":41,"CPEMatch":173},[174,176],{"Vulnerable":4,"Criteria":63,"MatchCriteriaID":175,"VersionStartExcluding":25,"VersionStartIncluding":25,"VersionEndExcluding":25,"VersionEndIncluding":25},"DEECE5FC-CACF-4496-A3E7-164736409252",{"Vulnerable":4,"Criteria":66,"MatchCriteriaID":177,"VersionStartExcluding":25,"VersionStartIncluding":25,"VersionEndExcluding":25,"VersionEndIncluding":25},"07B237A9-69A3-4A9C-9DA0-4E06BD37AE73",[],[180,187],{"id":181,"eventType":182,"eventTime":183,"details":184,"label":185,"color":186},"638657aa-ee10-45b1-95b0-cebb0ed633a7","HIGH_EPSS_DELTA","2025-09-13T04:07:14.071043+00:00","Daily EPSS score increased by 0.263 on 2023-12-30","EPSS Score Increased","red",{"id":188,"eventType":189,"eventTime":190,"details":191,"label":192,"color":193},"ea391be4-263a-40b8-811f-4a2f42f22c05","LOW_EPSS_DELTA","2025-10-30T04:25:19.534935+00:00","Daily EPSS score decreased by 0.247 on 2023-12-30","EPSS Score Decreased","green",{"lastModified":11,"cacheTime":195,"version":32},1792338851716,{"score":197,"band":198,"action":199,"scoredAt":200},62,"Medium","Plan remediation","2026-10-16T06:50:20.304511+00:00"]