[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$faFmQyMeMRdFTgao3hPq1ggZlrTaQLOE8kknjpEhU9Es":3,"g5a-risk:CVE-2020-25682":201},{"success":4,"data":5,"meta":199},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":131,"isActivelyExploited":41,"cisaInfo":25,"otxData":25,"relatedBlogPosts":132,"seoMetadata":133,"configurations":158,"relatedVendorCves":183,"notableEvents":184},"CVE-2020-25682","What is CVE-2020-25682?","A flaw was found in dnsmasq before 2.83. A buffer overflow vulnerability was discovered in the way dnsmasq extract names from DNS packets before validating them with DNSSEC data. An attacker on the network, who can create valid DNS replies, could use this flaw to cause an overflow with arbitrary data in a heap-allocated memory, possibly executing code on the machine. The flaw is in the rfc1035.c:extract_name() function, which writes data to the memory pointed by name assuming MAXDNAME*2 bytes are available in the buffer. However, in some code execution paths, it is possible extract_name() gets passed an offset from the base buffer, thus reducing, in practice, the number of available bytes that can be written in the buffer. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.","A flaw was found in dnsmasq before 2.83. A buffer overflow vulnerability was discovered in the way dnsmasq extract names from DNS packets before validating t...","2021-01-20T17:15:12.92","2025-11-04T20:15:56.973",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,0.70754,[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=1882014","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,[119,126],{"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",{"id":127,"name":128,"description":129,"extendedDescription":38,"status":123,"abstraction":130,"structure":125},"CWE-787","Out-of-bounds Write","The product writes data past the end, or before the beginning, of the intended buffer.","Base",2,[],{"title":134,"metaDescription":135,"keywords":136,"canonicalUrl":137,"structuredData":138},"What is CVE-2020-25682? Vulnerability Analysis | Security Advisory | Precursor Intelligence","Comprehensive analysis of CVE-2020-25682, a high severity cyber security vulnerability from 2021. High exploit probability (70.8%). A flaw was found in dnsma...","CVE-2020-25682, CVE-2020-25682 vulnerability, CVE-2020-25682 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-2020-25682",{"@context":139,"@type":140,"headline":134,"description":135,"datePublished":10,"dateModified":11,"author":141,"publisher":145,"about":149,"mainEntityOfPage":153,"articleSection":156,"keywords":157},"https:\u002F\u002Fschema.org","TechArticle",{"@type":142,"name":143,"url":144},"Organization","Precursor Intelligence","https:\u002F\u002Fprecursorintelligence.com",{"@type":142,"name":143,"url":144,"logo":146},{"@type":147,"url":148},"ImageObject","https:\u002F\u002Fprecursorintelligence.com\u002Fimg\u002Flogos\u002Feplogo.png",{"@type":150,"name":6,"description":151,"additionalType":152},"Thing","Cybersecurity Vulnerability","https:\u002F\u002Fschema.org\u002FSoftwareBug",{"@type":154,"@id":155},"WebPage","https:\u002F\u002Fprecursorintelligence.com\u002Fwhat-is\u002Fcve-2020-25682","Cybersecurity","CVE-2020-25682, CVE-2020-25682 vulnerability, CVE-2020-25682 security, high severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research",[159,167,175],{"Operator":25,"Negate":25,"Nodes":160},[161],{"Operator":162,"Negate":41,"CPEMatch":163},"OR",[164],{"Vulnerable":4,"Criteria":50,"MatchCriteriaID":165,"VersionStartExcluding":25,"VersionStartIncluding":25,"VersionEndExcluding":166,"VersionEndIncluding":25},"F38115DF-0F5C-442D-83D4-1125AAB4E2B7","2.83",{"Operator":25,"Negate":25,"Nodes":168},[169],{"Operator":162,"Negate":41,"CPEMatch":170},[171,173],{"Vulnerable":4,"Criteria":55,"MatchCriteriaID":172,"VersionStartExcluding":25,"VersionStartIncluding":25,"VersionEndExcluding":25,"VersionEndIncluding":25},"36D96259-24BD-44E2-96D9-78CE1D41F956",{"Vulnerable":4,"Criteria":58,"MatchCriteriaID":174,"VersionStartExcluding":25,"VersionStartIncluding":25,"VersionEndExcluding":25,"VersionEndIncluding":25},"E460AA51-FCDA-46B9-AE97-E6676AA5E194",{"Operator":25,"Negate":25,"Nodes":176},[177],{"Operator":162,"Negate":41,"CPEMatch":178},[179,181],{"Vulnerable":4,"Criteria":63,"MatchCriteriaID":180,"VersionStartExcluding":25,"VersionStartIncluding":25,"VersionEndExcluding":25,"VersionEndIncluding":25},"DEECE5FC-CACF-4496-A3E7-164736409252",{"Vulnerable":4,"Criteria":66,"MatchCriteriaID":182,"VersionStartExcluding":25,"VersionStartIncluding":25,"VersionEndExcluding":25,"VersionEndIncluding":25},"07B237A9-69A3-4A9C-9DA0-4E06BD37AE73",[],[185,192],{"id":186,"eventType":187,"eventTime":188,"details":189,"label":190,"color":191},"7db7fee7-b959-44c9-81b0-ff298fd9623e","HIGH_EPSS_DELTA","2025-11-19T04:06:18.824872+00:00","Daily EPSS score increased by 0.339 on 2023-12-30","EPSS Score Increased","red",{"id":193,"eventType":194,"eventTime":195,"details":196,"label":197,"color":198},"b00cbe75-d85c-43f7-9805-560f0a50aadb","LOW_EPSS_DELTA","2025-11-22T04:06:06.265445+00:00","Daily EPSS score decreased by 0.339 on 2023-12-30","EPSS Score Decreased","green",{"lastModified":11,"cacheTime":200,"version":32},1792333022897,{"score":202,"band":203,"action":204,"scoredAt":205},63,"Medium","Plan remediation","2026-10-16T06:50:20.304908+00:00"]