[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fc4Kip8QmXyGKhgoxVO0scosY_pVlsN8TU3MycYh3Ro4":3,"g5a-risk:CVE-2023-40477":128},{"success":4,"data":5,"meta":125},true,{"cveId":6,"title":7,"description":8,"shortDescription":9,"publishedDate":10,"lastModified":11,"cvssScore":12,"cvssVector":13,"cvssMetrics":14,"epssScore":33,"epssPercentile":28,"epssTimeSeries":34,"severity":35,"affectedProducts":36,"affectedProductsCount":42,"references":43,"referencesCount":63,"weaknesses":64,"weaknessesCount":42,"isActivelyExploited":73,"cisaInfo":28,"otxData":28,"relatedBlogPosts":74,"seoMetadata":75,"configurations":100,"relatedVendorCves":109,"notableEvents":110},"CVE-2023-40477","What is CVE-2023-40477?","RARLAB WinRAR Recovery Volume Improper Validation of Array Index Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of RARLAB WinRAR. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.\n\nThe specific flaw exists within the processing of recovery volumes. The issue results from the lack of proper validation of user-supplied data, which can result in a memory access past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-21233.","RARLAB WinRAR Recovery Volume Improper Validation of Array Index Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute a...","2024-05-03T03:15:20.473","2026-06-17T06:18:03.02",7.8,"CVSS:3.0\u002FAV:L\u002FAC:L\u002FPR:N\u002FUI:R\u002FS:U\u002FC:H\u002FI:H\u002FA:H",{"CVSSMetricV31":15,"CVSSMetricV30":16,"CVSSMetricV2":31,"CVSSMetricV40":32},[],[17],{"Source":18,"Type":19,"CVSSData":20,"ExploitabilityScore":29,"ImpactScore":30},"zdi-disclosures@trendmicro.com","Secondary",{"Version":21,"VectorString":13,"AttackVector":22,"AttackComplexity":23,"PrivilegesRequired":24,"UserInteraction":25,"Scope":26,"ConfidentialityImpact":27,"IntegrityImpact":27,"AvailabilityImpact":27,"BaseScore":12,"BaseSeverity":27,"ExploitCodeMaturity":28,"RemediationLevel":28,"ReportConfidence":28,"TemporalScore":28,"TemporalSeverity":28,"ConfidentialityRequirement":28,"IntegrityRequirement":28,"AvailabilityRequirement":28,"ModifiedAttackVector":28,"ModifiedAttackComplexity":28,"ModifiedPrivilegesRequired":28,"ModifiedUserInteraction":28,"ModifiedScope":28,"ModifiedConfidentialityImpact":28,"ModifiedIntegrityImpact":28,"ModifiedAvailabilityImpact":28,"EnvironmentalScore":28,"EnvironmentalSeverity":28},"3.0","LOCAL","LOW","NONE","REQUIRED","UNCHANGED","HIGH",null,1.8,5.9,[],[],0.1138,[33,33,33,33,33,33,33],"High",[37],{"vendor":38,"product":39,"version":40,"criteria":41,"vulnerable":4},"rarlab","winrar","*","cpe:2.3:a:rarlab:winrar:*:*:*:*:*:*:*:*",1,[44,49,55,59,61],{"url":45,"source":46,"tags":47},"https:\u002F\u002Fwww.win-rar.com\u002Fsinglenewsview.html?&L=0&tx_ttnews%5Btt_news%5D=232&cHash=c5bf79590657e32554c6683296a8e8aa","Win-rar",[48],"Release Notes",{"url":50,"source":51,"tags":52},"https:\u002F\u002Fwww.zerodayinitiative.com\u002Fadvisories\u002FZDI-23-1152\u002F","Zerodayinitiative",[53,54],"Third Party Advisory","VDB Entry",{"url":56,"source":57,"tags":58},"https:\u002F\u002Flists.debian.org\u002Fdebian-lts-announce\u002F2023\u002F11\u002Fmsg00009.html","Debian",[],{"url":45,"source":46,"tags":60},[48],{"url":50,"source":51,"tags":62},[53,54],5,[65],{"id":66,"name":67,"description":68,"extendedDescription":69,"status":70,"abstraction":71,"structure":72},"CWE-129","Improper Validation of Array Index","The product uses untrusted input when calculating or using an array index, but the product does not validate or incorrectly validates the index to ensure the index references a valid position within the array.","","Draft","Variant","Simple",false,[],{"title":76,"metaDescription":77,"keywords":78,"canonicalUrl":79,"structuredData":80},"What is CVE-2023-40477? Vulnerability Analysis | Security Advisory | Precursor Intelligence","Comprehensive analysis of CVE-2023-40477, a high severity cyber security vulnerability from 2024. RARLAB WinRAR Recovery Volume Improper Validation of Array ...","CVE-2023-40477, CVE-2023-40477 vulnerability, CVE-2023-40477 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, rarlab security, winrar vulnerability","\u002Fwhat-is\u002Fcve-2023-40477",{"@context":81,"@type":82,"headline":76,"description":77,"datePublished":10,"dateModified":11,"author":83,"publisher":87,"about":91,"mainEntityOfPage":95,"articleSection":98,"keywords":99},"https:\u002F\u002Fschema.org","TechArticle",{"@type":84,"name":85,"url":86},"Organization","Precursor Intelligence","https:\u002F\u002Fprecursorintelligence.com",{"@type":84,"name":85,"url":86,"logo":88},{"@type":89,"url":90},"ImageObject","https:\u002F\u002Fprecursorintelligence.com\u002Fimg\u002Flogos\u002Feplogo.png",{"@type":92,"name":6,"description":93,"additionalType":94},"Thing","Cybersecurity Vulnerability","https:\u002F\u002Fschema.org\u002FSoftwareBug",{"@type":96,"@id":97},"WebPage","https:\u002F\u002Fprecursorintelligence.com\u002Fwhat-is\u002Fcve-2023-40477","Cybersecurity","CVE-2023-40477, CVE-2023-40477 vulnerability, CVE-2023-40477 security, high severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research",[101],{"Operator":28,"Negate":28,"Nodes":102},[103],{"Operator":104,"Negate":73,"CPEMatch":105},"OR",[106],{"Vulnerable":4,"Criteria":41,"MatchCriteriaID":107,"VersionStartExcluding":28,"VersionStartIncluding":28,"VersionEndExcluding":108,"VersionEndIncluding":28},"A586AE4C-6F08-4E96-B74C-AA0A7BF4F2DD","6.23",[],[111,118],{"id":112,"eventType":113,"eventTime":114,"details":115,"label":116,"color":117},"1c4b0719-d6e0-4e3b-91b0-d6683af297e6","HIGH_EPSS_DELTA","2025-06-11T10:10:15.182284+00:00","Daily EPSS score increased by 0.811 on 2024-05-04","EPSS Score Increased","red",{"id":119,"eventType":120,"eventTime":121,"details":122,"label":123,"color":124},"348c8306-8ad4-4a5d-89ec-1dc68178c3a8","LOW_EPSS_DELTA","2025-11-19T04:05:10.423168+00:00","Daily EPSS score decreased by 0.694 on 2024-05-04","EPSS Score Decreased","green",{"lastModified":11,"cacheTime":126,"version":127},1792377111591,"2.0",{"score":129,"band":130,"action":131,"scoredAt":132},50,"Medium","Plan remediation","2026-10-16T07:01:52.095949+00:00"]