[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$ffxKOyvQzoPxx7zspnO6e5RNbZOCYxEvQhowY0bpg1xY":3,"g5a-risk:CVE-2025-53859":156},{"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":31,"epssPercentile":26,"epssTimeSeries":32,"severity":33,"affectedProducts":34,"affectedProductsCount":56,"references":57,"referencesCount":67,"weaknesses":68,"weaknessesCount":77,"isActivelyExploited":78,"cisaInfo":26,"otxData":26,"relatedBlogPosts":79,"seoMetadata":80,"configurations":105,"relatedVendorCves":144,"notableEvents":145},"CVE-2025-53859","What is CVE-2025-53859?","NGINX Open Source and NGINX Plus have a vulnerability in the ngx_mail_smtp_module that might allow an unauthenticated attacker to over-read NGINX SMTP authentication process memory; as a result, the server side may leak arbitrary bytes sent in a request to the authentication server. This issue happens during the NGINX SMTP authentication process and requires the attacker to make preparations against the target system to extract the leaked data. The issue affects NGINX only if (1) it is built with the ngx_mail_smtp_module, (2) the smtp_auth directive is configured with method \"none,\" and (3) the authentication server returns the \"Auth-Wait\" response header.\n\n\n\n\nNote: Software versions which have reached End of Technical Support (EoTS) are not evaluated.","NGINX Open Source and NGINX Plus have a vulnerability in the ngx_mail_smtp_module that might allow an unauthenticated attacker to over-read NGINX SMTP authen...","2025-08-13T15:15:37.657","2025-11-04T22:16:27.033",3.7,"CVSS:3.1\u002FAV:N\u002FAC:H\u002FPR:N\u002FUI:N\u002FS:U\u002FC:L\u002FI:N\u002FA:N",{"CVSSMetricV31":15,"CVSSMetricV30":29,"CVSSMetricV2":30,"CVSSMetricV40":26},[16],{"Source":17,"Type":18,"CVSSData":19,"ExploitabilityScore":27,"ImpactScore":28},"f5sirt@f5.com","Secondary",{"Version":20,"VectorString":13,"AttackVector":21,"AttackComplexity":22,"PrivilegesRequired":23,"UserInteraction":23,"Scope":24,"ConfidentialityImpact":25,"IntegrityImpact":23,"AvailabilityImpact":23,"BaseScore":12,"BaseSeverity":25,"ExploitCodeMaturity":26,"RemediationLevel":26,"ReportConfidence":26,"TemporalScore":26,"TemporalSeverity":26,"ConfidentialityRequirement":26,"IntegrityRequirement":26,"AvailabilityRequirement":26,"ModifiedAttackVector":26,"ModifiedAttackComplexity":26,"ModifiedPrivilegesRequired":26,"ModifiedUserInteraction":26,"ModifiedScope":26,"ModifiedConfidentialityImpact":26,"ModifiedIntegrityImpact":26,"ModifiedAvailabilityImpact":26,"EnvironmentalScore":26,"EnvironmentalSeverity":26},"3.1","NETWORK","HIGH","NONE","UNCHANGED","LOW",null,2.2,1.4,[],[],0.00413,[31,31,31,31,31,31,31],"Low",[35,40,43,46,49,52],{"vendor":36,"product":37,"version":38,"criteria":39,"vulnerable":4},"f5","nginx_plus","r30","cpe:2.3:a:f5:nginx_plus:r30:-:*:*:*:*:*:*",{"vendor":36,"product":37,"version":41,"criteria":42,"vulnerable":4},"r31","cpe:2.3:a:f5:nginx_plus:r31:-:*:*:*:*:*:*",{"vendor":36,"product":37,"version":44,"criteria":45,"vulnerable":4},"r32","cpe:2.3:a:f5:nginx_plus:r32:-:*:*:*:*:*:*",{"vendor":36,"product":37,"version":47,"criteria":48,"vulnerable":4},"r33","cpe:2.3:a:f5:nginx_plus:r33:-:*:*:*:*:*:*",{"vendor":36,"product":37,"version":50,"criteria":51,"vulnerable":4},"r34","cpe:2.3:a:f5:nginx_plus:r34:-:*:*:*:*:*:*",{"vendor":36,"product":53,"version":54,"criteria":55,"vulnerable":4},"nginx_open_source","*","cpe:2.3:a:f5:nginx_open_source:*:*:*:*:*:*:*:*",6,[58,63],{"url":59,"source":60,"tags":61},"https:\u002F\u002Fmy.f5.com\u002Fmanage\u002Fs\u002Farticle\u002FK000152786","F5",[62],"Vendor Advisory",{"url":64,"source":65,"tags":66},"http:\u002F\u002Fwww.openwall.com\u002Flists\u002Foss-security\u002F2025\u002F08\u002F13\u002F5","Openwall",[],2,[69],{"id":70,"name":71,"description":72,"extendedDescription":73,"status":74,"abstraction":75,"structure":76},"CWE-125","Out-of-bounds Read","The product reads data past the end, or before the beginning, of the intended buffer.","","Draft","Base","Simple",1,false,[],{"title":81,"metaDescription":82,"keywords":83,"canonicalUrl":84,"structuredData":85},"What is CVE-2025-53859? Vulnerability Analysis | Security Advisory | Precursor Intelligence","Comprehensive analysis of CVE-2025-53859, a low severity cyber security vulnerability from 2025. 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