[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fiIDNoM_b32hISdeRWVxElW6SG22dt83uvhcKORWg2l8":3,"g5a-risk:CVE-2020-5135":152},{"success":4,"data":5,"meta":150},true,{"cveId":6,"title":7,"description":8,"shortDescription":9,"publishedDate":10,"lastModified":11,"cvssScore":12,"cvssVector":13,"cvssMetrics":14,"epssScore":46,"epssPercentile":27,"epssTimeSeries":47,"severity":48,"affectedProducts":49,"affectedProductsCount":61,"references":62,"referencesCount":61,"weaknesses":75,"weaknessesCount":84,"isActivelyExploited":4,"cisaInfo":85,"otxData":27,"relatedBlogPosts":86,"seoMetadata":87,"configurations":112,"relatedVendorCves":134,"notableEvents":135},"CVE-2020-5135","What is CVE-2020-5135?","A buffer overflow vulnerability in SonicOS allows a remote attacker to cause Denial of Service (DoS) and potentially execute arbitrary code by sending a malicious request to the firewall. This vulnerability affected SonicOS Gen 6 version 6.5.4.7, 6.5.1.12, 6.0.5.3, SonicOSv 6.5.4.v and Gen 7 version 7.0.0.0.","A buffer overflow vulnerability in SonicOS allows a remote attacker to cause Denial of Service (DoS) and potentially execute arbitrary code by sending a mali...","2020-10-12T11:15:12.747","2025-10-31T14:40:10.58",9.8,"CVSS:3.1\u002FAV:N\u002FAC:L\u002FPR:N\u002FUI:N\u002FS:U\u002FC:H\u002FI:H\u002FA:H",{"CVSSMetricV31":15,"CVSSMetricV30":34,"CVSSMetricV2":35,"CVSSMetricV40":27},[16,30],{"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":25,"BaseScore":12,"BaseSeverity":26,"ExploitCodeMaturity":27,"RemediationLevel":27,"ReportConfidence":27,"TemporalScore":27,"TemporalSeverity":27,"ConfidentialityRequirement":27,"IntegrityRequirement":27,"AvailabilityRequirement":27,"ModifiedAttackVector":27,"ModifiedAttackComplexity":27,"ModifiedPrivilegesRequired":27,"ModifiedUserInteraction":27,"ModifiedScope":27,"ModifiedConfidentialityImpact":27,"ModifiedIntegrityImpact":27,"ModifiedAvailabilityImpact":27,"EnvironmentalScore":27,"EnvironmentalSeverity":27},"3.1","NETWORK","LOW","NONE","UNCHANGED","HIGH","CRITICAL",null,3.9,5.9,{"Source":31,"Type":32,"CVSSData":33,"ExploitabilityScore":28,"ImpactScore":29},"134c704f-9b21-4f2e-91b3-4a467353bcc0","Secondary",{"Version":20,"VectorString":13,"AttackVector":21,"AttackComplexity":22,"PrivilegesRequired":23,"UserInteraction":23,"Scope":24,"ConfidentialityImpact":25,"IntegrityImpact":25,"AvailabilityImpact":25,"BaseScore":12,"BaseSeverity":26,"ExploitCodeMaturity":27,"RemediationLevel":27,"ReportConfidence":27,"TemporalScore":27,"TemporalSeverity":27,"ConfidentialityRequirement":27,"IntegrityRequirement":27,"AvailabilityRequirement":27,"ModifiedAttackVector":27,"ModifiedAttackComplexity":27,"ModifiedPrivilegesRequired":27,"ModifiedUserInteraction":27,"ModifiedScope":27,"ModifiedConfidentialityImpact":27,"ModifiedIntegrityImpact":27,"ModifiedAvailabilityImpact":27,"EnvironmentalScore":27,"EnvironmentalSeverity":27},[],[36],{"Source":17,"Type":18,"CVSSData":37,"BaseSeverity":25,"ExploitabilityScore":43,"ImpactScore":44,"ACInsufInfo":45,"ObtainAllPrivilege":45,"ObtainUserPrivilege":45,"ObtainOtherPrivilege":45,"UserInteractionRequired":45},{"Version":38,"VectorString":39,"AccessVector":21,"AccessComplexity":22,"Authentication":23,"ConfidentialityImpact":40,"IntegrityImpact":40,"AvailabilityImpact":40,"BaseScore":41,"BaseSeverity":42,"Exploitability":27,"RemediationLevel":27,"ReportConfidence":27,"TemporalScore":27,"CollateralDamagePotential":27,"TargetDistribution":27,"ConfidentialityRequirement":27,"IntegrityRequirement":27,"AvailabilityRequirement":27,"EnvironmentalScore":27},"2.0","AV:N\u002FAC:L\u002FAu:N\u002FC:P\u002FI:P\u002FA:P","PARTIAL",7.5,"",10,6.4,false,0.26869,[46,46,46,46,46,46,46],"Critical",[50,55,58],{"vendor":51,"product":52,"version":53,"criteria":54,"vulnerable":4},"sonicwall","sonicos","*","cpe:2.3:o:sonicwall:sonicos:*:*:*:*:*:*:*:*",{"vendor":51,"product":52,"version":56,"criteria":57,"vulnerable":4},"7.0.0.0","cpe:2.3:o:sonicwall:sonicos:7.0.0.0:*:*:*:*:*:*:*",{"vendor":51,"product":59,"version":53,"criteria":60,"vulnerable":4},"sonicosv","cpe:2.3:o:sonicwall:sonicosv:*:*:*:*:*:*:*:*",3,[63,68,70],{"url":64,"source":65,"tags":66},"https:\u002F\u002Fpsirt.global.sonicwall.com\u002Fvuln-detail\u002FSNWLID-2020-0010","Sonicwall",[67],"Vendor Advisory",{"url":64,"source":65,"tags":69},[67],{"url":71,"source":72,"tags":73},"https:\u002F\u002Fwww.cisa.gov\u002Fknown-exploited-vulnerabilities-catalog?field_cve=CVE-2020-5135","CISA",[74],"US Government Resource",[76],{"id":77,"name":78,"description":79,"extendedDescription":80,"status":81,"abstraction":82,"structure":83},"CWE-120","Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')","The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow.","A buffer overflow condition exists when a product attempts to put more data in a buffer than it can hold, or when it attempts to put data in a memory area outside of the boundaries of a buffer. The simplest type of error, and the most common cause of buffer overflows, is the \"classic\" case in which the product copies the buffer without restricting how much is copied. Other variants exist, but the existence of a classic overflow strongly suggests that the programmer is not considering even the most basic of security protections.","Incomplete","Base","Simple",1,{"shortDescription":42,"requiredAction":42,"vulnerabilityName":42,"dateAdded":27},[],{"title":88,"metaDescription":89,"keywords":90,"canonicalUrl":91,"structuredData":92},"What is CVE-2020-5135? Vulnerability Analysis | Security Advisory | Precursor Intelligence","Comprehensive analysis of CVE-2020-5135, a critical severity cyber security vulnerability from 2020. A buffer overflow vulnerability in SonicOS allows a remo...","CVE-2020-5135, CVE-2020-5135 vulnerability, CVE-2020-5135 security, critical severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research, vulnerability assessment, cyber threats, 2020, CVSS score, exploit, patch, remediation, sonicwall security, sonicos vulnerability, sonicosv vulnerability","\u002Fwhat-is\u002Fcve-2020-5135",{"@context":93,"@type":94,"headline":88,"description":89,"datePublished":10,"dateModified":11,"author":95,"publisher":99,"about":103,"mainEntityOfPage":107,"articleSection":110,"keywords":111},"https:\u002F\u002Fschema.org","TechArticle",{"@type":96,"name":97,"url":98},"Organization","Precursor Intelligence","https:\u002F\u002Fprecursorintelligence.com",{"@type":96,"name":97,"url":98,"logo":100},{"@type":101,"url":102},"ImageObject","https:\u002F\u002Fprecursorintelligence.com\u002Fimg\u002Flogos\u002Feplogo.png",{"@type":104,"name":6,"description":105,"additionalType":106},"Thing","Cybersecurity Vulnerability","https:\u002F\u002Fschema.org\u002FSoftwareBug",{"@type":108,"@id":109},"WebPage","https:\u002F\u002Fprecursorintelligence.com\u002Fwhat-is\u002Fcve-2020-5135","Cybersecurity","CVE-2020-5135, CVE-2020-5135 vulnerability, CVE-2020-5135 security, critical severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research",[113],{"Operator":27,"Negate":27,"Nodes":114},[115],{"Operator":116,"Negate":45,"CPEMatch":117},"OR",[118,121,125,129,131],{"Vulnerable":4,"Criteria":54,"MatchCriteriaID":119,"VersionStartExcluding":27,"VersionStartIncluding":27,"VersionEndExcluding":27,"VersionEndIncluding":120},"3937590E-0915-4FA8-AE69-A5197A839931","6.0.5.3",{"Vulnerable":4,"Criteria":54,"MatchCriteriaID":122,"VersionStartExcluding":27,"VersionStartIncluding":123,"VersionEndExcluding":27,"VersionEndIncluding":124},"08DF961E-08DD-47EC-9AB1-3A3FF79E1F7A","6.5.0.0","6.5.1.11",{"Vulnerable":4,"Criteria":54,"MatchCriteriaID":126,"VersionStartExcluding":27,"VersionStartIncluding":127,"VersionEndExcluding":27,"VersionEndIncluding":128},"8302038F-FA49-4CF2-B064-3EE1103B99F1","6.5.4.0","6.5.4.7",{"Vulnerable":4,"Criteria":57,"MatchCriteriaID":130,"VersionStartExcluding":27,"VersionStartIncluding":27,"VersionEndExcluding":27,"VersionEndIncluding":27},"05C0300F-44AB-482C-BA6D-B9F2ED77037A",{"Vulnerable":4,"Criteria":60,"MatchCriteriaID":132,"VersionStartExcluding":27,"VersionStartIncluding":27,"VersionEndExcluding":27,"VersionEndIncluding":133},"8BBB86A1-803B-4B76-BF3D-4A9BCC5AD302","6.5.4.4",[],[136,143],{"id":137,"eventType":138,"eventTime":139,"details":140,"label":141,"color":142},"2adb0de2-b3d2-4447-9784-a1b24c37d7b7","HIGH_EPSS_DELTA","2025-06-12T12:50:08.32903+00:00","Daily EPSS score increased by 0.138 on 2023-12-30","EPSS Score Increased","red",{"id":144,"eventType":145,"eventTime":146,"details":147,"label":148,"color":149},"bd8e8af8-3f6d-41a7-b693-e31f35a44085","LOW_EPSS_DELTA","2025-06-29T04:05:30.583034+00:00","Daily EPSS score decreased by 0.167 on 2023-12-30","EPSS Score Decreased","green",{"lastModified":11,"cacheTime":151,"version":38},1792361971019,{"score":153,"band":48,"action":154,"scoredAt":155},90,"Emergency patch","2026-10-16T06:49:33.984008+00:00"]