[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fpaIHFwLimXJmq5PDzBrUPe0BcDd5Bcj4LlWzzD70-vE":3,"g5a-risk:CVE-2021-39246":154},{"success":4,"data":5,"meta":152},true,{"cveId":6,"title":7,"description":8,"shortDescription":9,"publishedDate":10,"lastModified":11,"cvssScore":12,"cvssVector":13,"cvssMetrics":14,"epssScore":40,"epssPercentile":27,"epssTimeSeries":41,"severity":42,"affectedProducts":43,"affectedProductsCount":65,"references":66,"referencesCount":65,"weaknesses":90,"weaknessesCount":99,"isActivelyExploited":100,"cisaInfo":27,"otxData":27,"relatedBlogPosts":101,"seoMetadata":102,"configurations":127,"relatedVendorCves":150,"notableEvents":151},"CVE-2021-39246","What is CVE-2021-39246?","Tor Browser through 10.5.6 and 11.x through 11.0a4 allows a correlation attack that can compromise the privacy of visits to v2 onion addresses. Exact timestamps of these onion-service visits are logged locally, and an attacker might be able to compare them to timestamp data collected by the destination server (or collected by a rogue site within the Tor network).","Tor Browser through 10.5.6 and 11.x through 11.0a4 allows a correlation attack that can compromise the privacy of visits to v2 onion addresses. Exact timesta...","2021-09-24T19:15:07.147","2021-10-01T13:00:50.353",6.1,"CVSS:3.1\u002FAV:P\u002FAC:L\u002FPR:N\u002FUI:N\u002FS:U\u002FC:H\u002FI:H\u002FA:N",{"CVSSMetricV31":15,"CVSSMetricV30":27,"CVSSMetricV2":30,"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":23,"Scope":24,"ConfidentialityImpact":25,"IntegrityImpact":25,"AvailabilityImpact":23,"BaseScore":12,"BaseSeverity":26,"ExploitCodeMaturity":27,"RemediationLevel":27,"ReportConfidence":27,"TemporalScore":27,"TemporalSeverity":27,"ConfidentialityRequirement":27,"IntegrityRequirement":27,"AvailabilityRequirement":23,"ModifiedAttackVector":27,"ModifiedAttackComplexity":27,"ModifiedPrivilegesRequired":27,"ModifiedUserInteraction":27,"ModifiedScope":27,"ModifiedConfidentialityImpact":27,"ModifiedIntegrityImpact":27,"ModifiedAvailabilityImpact":27,"EnvironmentalScore":27,"EnvironmentalSeverity":27},"3.1","PHYSICAL","LOW","NONE","UNCHANGED","HIGH","MEDIUM",null,0.9,5.2,[31],{"Source":17,"Type":18,"CVSSData":32,"BaseSeverity":22,"ExploitabilityScore":38,"ImpactScore":39,"ACInsufInfo":27,"ObtainAllPrivilege":27,"ObtainUserPrivilege":27,"ObtainOtherPrivilege":27,"UserInteractionRequired":27},{"Version":33,"VectorString":34,"AccessVector":35,"AccessComplexity":22,"Authentication":23,"ConfidentialityImpact":36,"IntegrityImpact":36,"AvailabilityImpact":23,"BaseScore":37,"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:L\u002FAC:L\u002FAu:N\u002FC:P\u002FI:P\u002FA:N","LOCAL","PARTIAL",3.6,3.9,4.9,0.00475,[40,40,40,40,40,40,40],"Medium",[44,49,52,57,61],{"vendor":45,"product":46,"version":47,"criteria":48,"vulnerable":4},"torproject","tor_browser","*","cpe:2.3:a:torproject:tor_browser:*:*:*:*:*:*:*:*",{"vendor":45,"product":46,"version":50,"criteria":51,"vulnerable":4},"11.0","cpe:2.3:a:torproject:tor_browser:11.0:alpha2:*:*:*:*:*:*",{"vendor":53,"product":54,"version":55,"criteria":56,"vulnerable":4},"apple","macos","-","cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*",{"vendor":58,"product":59,"version":55,"criteria":60,"vulnerable":4},"linux","linux_kernel","cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*",{"vendor":62,"product":63,"version":55,"criteria":64,"vulnerable":4},"microsoft","windows","cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*",5,[67,73,79,82,86],{"url":68,"source":69,"tags":70},"https:\u002F\u002Fgithub.com\u002Fsickcodes\u002Fsecurity\u002Fblob\u002Fmaster\u002Fadvisories\u002FSICK-2021-111.md","GitHub",[71,72],"Exploit","Third Party Advisory",{"url":74,"source":75,"tags":76},"https:\u002F\u002Fgitlab.torproject.org\u002Ftpo\u002Fcore\u002Ftor\u002F-\u002Fcommit\u002F80c404c4b79f3bcba3fc4585d4c62a62a04f3ed9","Torproject",[77,78],"Patch","Vendor Advisory",{"url":80,"source":75,"tags":81},"https:\u002F\u002Fgitlab.torproject.org\u002Ftpo\u002Fcore\u002Ftor\u002F-\u002Fmerge_requests\u002F434",[78],{"url":83,"source":84,"tags":85},"https:\u002F\u002Fsick.codes\u002Fsick-2021-111","Sick",[71,72],{"url":87,"source":88,"tags":89},"https:\u002F\u002Fwww.privacyaffairs.com\u002Fcve-2021-39246-tor-vulnerability","Privacyaffairs",[72],[91],{"id":92,"name":93,"description":94,"extendedDescription":95,"status":96,"abstraction":97,"structure":98},"CWE-532","Insertion of Sensitive Information into Log File","Information written to log files can be of a sensitive nature and give valuable guidance to an attacker or expose sensitive user information.","While logging all information may be helpful during development stages, it is important that logging levels be set appropriately before a product ships so that sensitive user data and system information are not accidentally exposed to potential attackers.\nDifferent log files may be produced and stored for:","Incomplete","Base","Simple",1,false,[],{"title":103,"metaDescription":104,"keywords":105,"canonicalUrl":106,"structuredData":107},"What is CVE-2021-39246? Vulnerability Analysis | Security Advisory | Precursor Intelligence","Comprehensive analysis of CVE-2021-39246, a medium severity cyber security vulnerability from 2021. Tor Browser through 10.5.6 and 11.x through 11.0a4 allows...","CVE-2021-39246, CVE-2021-39246 vulnerability, CVE-2021-39246 security, medium severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research, vulnerability assessment, cyber threats, 2021, CVSS score, exploit, patch, remediation, torproject security, apple security, linux security, microsoft security, tor_browser vulnerability, macos vulnerability, linux_kernel vulnerability, windows vulnerability","\u002Fwhat-is\u002Fcve-2021-39246",{"@context":108,"@type":109,"headline":103,"description":104,"datePublished":10,"dateModified":11,"author":110,"publisher":114,"about":118,"mainEntityOfPage":122,"articleSection":125,"keywords":126},"https:\u002F\u002Fschema.org","TechArticle",{"@type":111,"name":112,"url":113},"Organization","Precursor Intelligence","https:\u002F\u002Fprecursorintelligence.com",{"@type":111,"name":112,"url":113,"logo":115},{"@type":116,"url":117},"ImageObject","https:\u002F\u002Fprecursorintelligence.com\u002Fimg\u002Flogos\u002Feplogo.png",{"@type":119,"name":6,"description":120,"additionalType":121},"Thing","Cybersecurity Vulnerability","https:\u002F\u002Fschema.org\u002FSoftwareBug",{"@type":123,"@id":124},"WebPage","https:\u002F\u002Fprecursorintelligence.com\u002Fwhat-is\u002Fcve-2021-39246","Cybersecurity","CVE-2021-39246, CVE-2021-39246 vulnerability, CVE-2021-39246 security, medium severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research",[128],{"Operator":129,"Negate":27,"Nodes":130},"AND",[131,142],{"Operator":132,"Negate":27,"CPEMatch":133},"OR",[134,137,139],{"Vulnerable":4,"Criteria":48,"MatchCriteriaID":135,"VersionStartExcluding":27,"VersionStartIncluding":27,"VersionEndExcluding":27,"VersionEndIncluding":136},"E2A501C7-B8B3-4E18-9538-25DEDF2A644F","10.5.6",{"Vulnerable":4,"Criteria":51,"MatchCriteriaID":138,"VersionStartExcluding":27,"VersionStartIncluding":27,"VersionEndExcluding":27,"VersionEndIncluding":27},"45031E29-6854-481E-9D53-5D2EACF3BA03",{"Vulnerable":4,"Criteria":140,"MatchCriteriaID":141,"VersionStartExcluding":27,"VersionStartIncluding":27,"VersionEndExcluding":27,"VersionEndIncluding":27},"cpe:2.3:a:torproject:tor_browser:11.0:alpha4:*:*:*:*:*:*","48C405F5-103C-4FE3-A066-DE1BE00CDC7D",{"Operator":132,"Negate":27,"CPEMatch":143},[144,146,148],{"Vulnerable":27,"Criteria":56,"MatchCriteriaID":145,"VersionStartExcluding":27,"VersionStartIncluding":27,"VersionEndExcluding":27,"VersionEndIncluding":27},"387021A0-AF36-463C-A605-32EA7DAC172E",{"Vulnerable":27,"Criteria":60,"MatchCriteriaID":147,"VersionStartExcluding":27,"VersionStartIncluding":27,"VersionEndExcluding":27,"VersionEndIncluding":27},"703AF700-7A70-47E2-BC3A-7FD03B3CA9C1",{"Vulnerable":27,"Criteria":64,"MatchCriteriaID":149,"VersionStartExcluding":27,"VersionStartIncluding":27,"VersionEndExcluding":27,"VersionEndIncluding":27},"A2572D17-1DE6-457B-99CC-64AFD54487EA",[],[],{"lastModified":11,"cacheTime":153,"version":33},1792333743053,{"score":155,"band":42,"action":156,"scoredAt":157},42,"Plan remediation","2026-10-16T06:52:09.00856+00:00"]