[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fwflnlRdM3siLysu10x6TwmM5dfs9Tf-chbEDDe6wNnM":3,"g5a-risk:CVE-2018-14821":118},{"success":4,"data":5,"meta":116},true,{"cveId":6,"title":7,"description":8,"shortDescription":9,"publishedDate":10,"lastModified":11,"cvssScore":12,"cvssVector":13,"cvssMetrics":14,"epssScore":39,"epssPercentile":15,"epssTimeSeries":40,"severity":41,"affectedProducts":42,"affectedProductsCount":48,"references":49,"referencesCount":61,"weaknesses":62,"weaknessesCount":61,"isActivelyExploited":78,"cisaInfo":15,"otxData":15,"relatedBlogPosts":79,"seoMetadata":80,"configurations":105,"relatedVendorCves":114,"notableEvents":115},"CVE-2018-14821","What is CVE-2018-14821?","Rockwell Automation RSLinx Classic Versions 4.00.01 and prior. This vulnerability may allow a remote, unauthenticated threat actor to intentionally send a malformed CIP packet to Port 44818, causing the RSLinx Classic application to terminate. The user will need to manually restart the software to regain functionality.","Rockwell Automation RSLinx Classic Versions 4.00.01 and prior. This vulnerability may allow a remote, unauthenticated threat actor to intentionally send a ma...","2018-09-20T19:29:00.47","2019-10-09T23:35:16.937",7.5,"CVSS:3.0\u002FAV:N\u002FAC:L\u002FPR:N\u002FUI:N\u002FS:U\u002FC:N\u002FI:N\u002FA:H",{"CVSSMetricV31":15,"CVSSMetricV30":16,"CVSSMetricV2":29,"CVSSMetricV40":15},null,[17],{"Source":18,"Type":19,"CVSSData":20,"ExploitabilityScore":27,"ImpactScore":28},"nvd@nist.gov","Primary",{"Version":21,"VectorString":13,"AttackVector":22,"AttackComplexity":23,"PrivilegesRequired":24,"UserInteraction":24,"Scope":25,"ConfidentialityImpact":24,"IntegrityImpact":24,"AvailabilityImpact":26,"BaseScore":12,"BaseSeverity":26,"ExploitCodeMaturity":15,"RemediationLevel":15,"ReportConfidence":15,"TemporalScore":15,"TemporalSeverity":15,"ConfidentialityRequirement":15,"IntegrityRequirement":15,"AvailabilityRequirement":15,"ModifiedAttackVector":15,"ModifiedAttackComplexity":15,"ModifiedPrivilegesRequired":15,"ModifiedUserInteraction":15,"ModifiedScope":15,"ModifiedConfidentialityImpact":15,"ModifiedIntegrityImpact":15,"ModifiedAvailabilityImpact":15,"EnvironmentalScore":15,"EnvironmentalSeverity":15},"3.0","NETWORK","LOW","NONE","UNCHANGED","HIGH",3.9,3.6,[30],{"Source":18,"Type":19,"CVSSData":31,"BaseSeverity":36,"ExploitabilityScore":37,"ImpactScore":38,"ACInsufInfo":15,"ObtainAllPrivilege":15,"ObtainUserPrivilege":15,"ObtainOtherPrivilege":15,"UserInteractionRequired":15},{"Version":32,"VectorString":33,"AccessVector":22,"AccessComplexity":23,"Authentication":24,"ConfidentialityImpact":24,"IntegrityImpact":24,"AvailabilityImpact":34,"BaseScore":35,"BaseSeverity":15,"Exploitability":15,"RemediationLevel":15,"ReportConfidence":15,"TemporalScore":15,"CollateralDamagePotential":15,"TargetDistribution":15,"ConfidentialityRequirement":15,"IntegrityRequirement":15,"AvailabilityRequirement":15,"EnvironmentalScore":15},"2.0","AV:N\u002FAC:L\u002FAu:N\u002FC:N\u002FI:N\u002FA:P","PARTIAL",5,"MEDIUM",10,2.9,0.04495,[39,39,39,39,39,39,39],"High",[43],{"vendor":44,"product":45,"version":46,"criteria":47,"vulnerable":4},"rockwellautomation","rslinx","*","cpe:2.3:a:rockwellautomation:rslinx:*:*:*:*:classic:*:*:*",1,[50,56],{"url":51,"source":52,"tags":53},"https:\u002F\u002Fics-cert.us-cert.gov\u002Fadvisories\u002FICSA-18-263-02","Us-cert",[54,55],"Third Party Advisory","US Government Resource",{"url":57,"source":58,"tags":59},"https:\u002F\u002Fwww.tenable.com\u002Fsecurity\u002Fresearch\u002Ftra-2018-26","Tenable",[60,54],"Exploit",2,[63,71],{"id":64,"name":65,"description":66,"extendedDescription":67,"status":68,"abstraction":69,"structure":70},"CWE-119","Improper Restriction of Operations within the Bounds of a Memory Buffer","The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.","Certain languages allow direct addressing of memory locations and do not automatically ensure that these locations are valid for the memory buffer that is being referenced. This can cause read or write operations to be performed on memory locations that may be associated with other variables, data structures, or internal program data.","Stable","Class","Simple",{"id":72,"name":73,"description":74,"extendedDescription":75,"status":76,"abstraction":77,"structure":70},"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",false,[],{"title":81,"metaDescription":82,"keywords":83,"canonicalUrl":84,"structuredData":85},"What is CVE-2018-14821? Vulnerability Analysis | Security Advisory | Precursor Intelligence","Comprehensive analysis of CVE-2018-14821, a high severity cyber security vulnerability from 2018. Rockwell Automation RSLinx Classic Versions 4.00.01 and pri...","CVE-2018-14821, CVE-2018-14821 vulnerability, CVE-2018-14821 security, high severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research, vulnerability assessment, cyber threats, 2018, CVSS score, exploit, patch, remediation, rockwellautomation security, rslinx vulnerability","\u002Fwhat-is\u002Fcve-2018-14821",{"@context":86,"@type":87,"headline":81,"description":82,"datePublished":10,"dateModified":11,"author":88,"publisher":92,"about":96,"mainEntityOfPage":100,"articleSection":103,"keywords":104},"https:\u002F\u002Fschema.org","TechArticle",{"@type":89,"name":90,"url":91},"Organization","Precursor Intelligence","https:\u002F\u002Fprecursorintelligence.com",{"@type":89,"name":90,"url":91,"logo":93},{"@type":94,"url":95},"ImageObject","https:\u002F\u002Fprecursorintelligence.com\u002Fimg\u002Flogos\u002Feplogo.png",{"@type":97,"name":6,"description":98,"additionalType":99},"Thing","Cybersecurity Vulnerability","https:\u002F\u002Fschema.org\u002FSoftwareBug",{"@type":101,"@id":102},"WebPage","https:\u002F\u002Fprecursorintelligence.com\u002Fwhat-is\u002Fcve-2018-14821","Cybersecurity","CVE-2018-14821, CVE-2018-14821 vulnerability, CVE-2018-14821 security, high severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research",[106],{"Operator":15,"Negate":15,"Nodes":107},[108],{"Operator":109,"Negate":15,"CPEMatch":110},"OR",[111],{"Vulnerable":4,"Criteria":47,"MatchCriteriaID":112,"VersionStartExcluding":15,"VersionStartIncluding":15,"VersionEndExcluding":15,"VersionEndIncluding":113},"8A2F3687-1906-476D-9947-B4A02AAA1E24","4.00.01",[],[],{"lastModified":11,"cacheTime":117,"version":32},1792333045424,{"score":119,"band":120,"action":121,"scoredAt":122},48,"Medium","Plan remediation","2026-10-16T06:44:52.895462+00:00"]