[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fz8dX4bhMHBr-j_aVsXKF0nYyZADAwfVlpxxMJ3VBmm0":3,"g5a-risk:CVE-2023-42118":136},{"success":4,"data":5,"meta":133},true,{"cveId":6,"title":7,"description":8,"shortDescription":9,"publishedDate":10,"lastModified":11,"cvssScore":12,"cvssVector":13,"cvssMetrics":14,"epssScore":40,"epssPercentile":26,"epssTimeSeries":41,"severity":42,"affectedProducts":43,"affectedProductsCount":53,"references":54,"referencesCount":67,"weaknesses":68,"weaknessesCount":77,"isActivelyExploited":52,"cisaInfo":26,"otxData":26,"relatedBlogPosts":78,"seoMetadata":79,"configurations":104,"relatedVendorCves":117,"notableEvents":118},"CVE-2023-42118","What is CVE-2023-42118?","Exim libspf2 Integer Underflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Exim libspf2. Authentication is not required to exploit this vulnerability. \n\nThe specific flaw exists within the parsing of SPF macros. When parsing SPF macros, the process does not properly validate user-supplied data, which can result in an integer underflow before writing to memory. An attacker can leverage this vulnerability to execute code in the context of the service account.\n. Was ZDI-CAN-17578.","Exim libspf2 Integer Underflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affecte...","2024-05-03T03:15:50.643","2026-06-17T06:23:30",8.8,"CVSS:3.1\u002FAV:A\u002FAC:L\u002FPR:N\u002FUI:N\u002FS:U\u002FC:H\u002FI:H\u002FA:H",{"CVSSMetricV31":15,"CVSSMetricV30":29,"CVSSMetricV2":38,"CVSSMetricV40":39},[16],{"Source":17,"Type":18,"CVSSData":19,"ExploitabilityScore":27,"ImpactScore":28},"nvd@nist.gov","Primary",{"Version":20,"VectorString":13,"AttackVector":21,"AttackComplexity":22,"PrivilegesRequired":23,"UserInteraction":23,"Scope":24,"ConfidentialityImpact":25,"IntegrityImpact":25,"AvailabilityImpact":25,"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","ADJACENT_NETWORK","LOW","NONE","UNCHANGED","HIGH",null,2.8,5.9,[30],{"Source":31,"Type":32,"CVSSData":33,"ExploitabilityScore":37,"ImpactScore":28},"zdi-disclosures@trendmicro.com","Secondary",{"Version":34,"VectorString":35,"AttackVector":21,"AttackComplexity":25,"PrivilegesRequired":23,"UserInteraction":23,"Scope":24,"ConfidentialityImpact":25,"IntegrityImpact":25,"AvailabilityImpact":25,"BaseScore":36,"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},"3.0","CVSS:3.0\u002FAV:A\u002FAC:H\u002FPR:N\u002FUI:N\u002FS:U\u002FC:H\u002FI:H\u002FA:H",7.5,1.6,[],[],0.08419,[40,40,40,40,40,40,40],"High",[44,49],{"vendor":45,"product":46,"version":47,"criteria":48,"vulnerable":4},"libspf2_project","libspf2","-","cpe:2.3:a:libspf2_project:libspf2:-:*:*:*:*:*:*:*",{"vendor":50,"product":50,"version":47,"criteria":51,"vulnerable":52},"exim","cpe:2.3:a:exim:exim:-:*:*:*:*:*:*:*",false,2,[55,60,65],{"url":56,"source":57,"tags":58},"https:\u002F\u002Fwww.zerodayinitiative.com\u002Fadvisories\u002FZDI-23-1472\u002F","Zerodayinitiative",[59],"Third Party Advisory",{"url":61,"source":62,"tags":63},"http:\u002F\u002Fwww.openwall.com\u002Flists\u002Foss-security\u002F2025\u002F03\u002F28\u002F1","Openwall",[64],"Mailing List",{"url":56,"source":57,"tags":66},[59],3,[69],{"id":70,"name":71,"description":72,"extendedDescription":73,"status":74,"abstraction":75,"structure":76},"CWE-191","Integer Underflow (Wrap or Wraparound)","The product subtracts one value from another, such that the result is less than the minimum allowable integer value, which produces a value that is not equal to the correct result.","This can happen in signed and unsigned cases.","Draft","Base","Simple",1,[],{"title":80,"metaDescription":81,"keywords":82,"canonicalUrl":83,"structuredData":84},"What is CVE-2023-42118? Vulnerability Analysis | Security Advisory | EdgeProtect","Comprehensive analysis of CVE-2023-42118, a high severity cyber security vulnerability from 2024. Exim libspf2 Integer Underflow Remote Code Execution Vulner...","CVE-2023-42118, CVE-2023-42118 vulnerability, CVE-2023-42118 security, high severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research, vulnerability assessment, cyber threats, 2024, CVSS score, exploit, patch, remediation, libspf2_project security, exim security, libspf2 vulnerability, exim vulnerability","\u002Fwhat-is\u002Fcve-2023-42118",{"@context":85,"@type":86,"headline":80,"description":81,"datePublished":10,"dateModified":11,"author":87,"publisher":91,"about":95,"mainEntityOfPage":99,"articleSection":102,"keywords":103},"https:\u002F\u002Fschema.org","TechArticle",{"@type":88,"name":89,"url":90},"Organization","EdgeProtect","https:\u002F\u002Fedgeprotect.io",{"@type":88,"name":89,"url":90,"logo":92},{"@type":93,"url":94},"ImageObject","https:\u002F\u002Fedgeprotect.io\u002Fimg\u002Flogos\u002Fedgeprotect-logo-512.png",{"@type":96,"name":6,"description":97,"additionalType":98},"Thing","Cybersecurity Vulnerability","https:\u002F\u002Fschema.org\u002FSoftwareBug",{"@type":100,"@id":101},"WebPage","https:\u002F\u002Fedgeprotect.io\u002Fwhat-is\u002Fcve-2023-42118","Cybersecurity","CVE-2023-42118, CVE-2023-42118 vulnerability, CVE-2023-42118 security, high severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research",[105],{"Operator":106,"Negate":26,"Nodes":107},"AND",[108,113],{"Operator":109,"Negate":52,"CPEMatch":110},"OR",[111],{"Vulnerable":4,"Criteria":48,"MatchCriteriaID":112,"VersionStartExcluding":26,"VersionStartIncluding":26,"VersionEndExcluding":26,"VersionEndIncluding":26},"99D0C1B5-85F6-47DD-A171-093A38D7FDDB",{"Operator":109,"Negate":52,"CPEMatch":114},[115],{"Vulnerable":52,"Criteria":51,"MatchCriteriaID":116,"VersionStartExcluding":26,"VersionStartIncluding":26,"VersionEndExcluding":26,"VersionEndIncluding":26},"C70FF451-2194-4021-B6B5-11D1CC7A19C8",[],[119,126],{"id":120,"eventType":121,"eventTime":122,"details":123,"label":124,"color":125},"09cc5c21-61fb-4c56-bc50-60bab432d84b","HIGH_EPSS_DELTA","2026-06-16T04:05:01.383678+00:00","Daily EPSS score increased by 0.485 on 2024-05-04","EPSS Score Increased","red",{"id":127,"eventType":128,"eventTime":129,"details":130,"label":131,"color":132},"a1abe5a6-99e7-453d-8e58-9bbe7539af05","LOW_EPSS_DELTA","2026-10-04T04:06:06.052114+00:00","Daily EPSS score decreased by 0.259 on 2024-05-04","EPSS Score Decreased","green",{"lastModified":11,"cacheTime":134,"version":135},1793332453198,"2.0",{"score":137,"band":138,"action":139,"scoredAt":140},49,"Medium","Plan remediation","2026-10-29T07:00:37.090028+00:00"]