[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fnJ3_jPIN3gf6ocStByTYv2vWseow-S2N6w9D_7oepjI":3,"g5a-risk:CVE-2017-6740":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":48,"epssPercentile":26,"epssTimeSeries":49,"severity":50,"affectedProducts":51,"affectedProductsCount":60,"references":61,"referencesCount":85,"weaknesses":86,"weaknessesCount":95,"isActivelyExploited":4,"cisaInfo":96,"otxData":26,"relatedBlogPosts":97,"seoMetadata":98,"configurations":123,"relatedVendorCves":141,"notableEvents":142},"CVE-2017-6740","What is CVE-2017-6740?","The Simple Network Management Protocol (SNMP) subsystem of Cisco IOS and IOS XE Software contains multiple vulnerabilities that could allow an authenticated, remote attacker to remotely execute code on an affected system or cause an affected system to reload. An attacker could exploit these vulnerabilities by sending a crafted SNMP packet to an affected system via IPv4 or IPv6. Only traffic directed to an affected system can be used to exploit these vulnerabilities.\r\n\r The vulnerabilities are due to a buffer overflow condition in the SNMP subsystem of the affected software. The vulnerabilities affect all versions of SNMP - Versions 1, 2c, and 3. To exploit these vulnerabilities via SNMP Version 2c or earlier, the attacker must know the SNMP read-only community string for the affected system. To exploit these vulnerabilities via SNMP Version 3, the attacker must have user credentials for the affected system. A successful exploit could allow the attacker to execute arbitrary code and obtain full control of the affected system or cause the affected system to reload.\r\n\r Customers are advised to apply the workaround as contained in the Workarounds section below. Fixed software information is available via the Cisco IOS Software Checker. All devices that have enabled SNMP and have not explicitly excluded the affected MIBs or OIDs should be considered vulnerable.\r\n\r   There are workarounds that address these vulnerabilities.","The Simple Network Management Protocol (SNMP) subsystem of Cisco IOS and IOS XE Software contains multiple vulnerabilities that could allow an authenticated,...","2017-07-17T21:29:00.37","2025-10-22T00:16:09.447",8.8,"CVSS:3.1\u002FAV:N\u002FAC:L\u002FPR:L\u002FUI:N\u002FS:U\u002FC:H\u002FI:H\u002FA:H",{"CVSSMetricV31":15,"CVSSMetricV30":29,"CVSSMetricV2":36,"CVSSMetricV40":26},[16],{"Source":17,"Type":18,"CVSSData":19,"ExploitabilityScore":27,"ImpactScore":28},"nvd@nist.gov","Primary",{"Version":20,"VectorString":13,"AttackVector":21,"AttackComplexity":22,"PrivilegesRequired":22,"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","NETWORK","LOW","NONE","UNCHANGED","HIGH",null,2.8,5.9,[30],{"Source":31,"Type":32,"CVSSData":33,"ExploitabilityScore":27,"ImpactScore":28},"psirt@cisco.com","Secondary",{"Version":34,"VectorString":35,"AttackVector":21,"AttackComplexity":22,"PrivilegesRequired":22,"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},"3.0","CVSS:3.0\u002FAV:N\u002FAC:L\u002FPR:L\u002FUI:N\u002FS:U\u002FC:H\u002FI:H\u002FA:H",[37],{"Source":17,"Type":18,"CVSSData":38,"BaseSeverity":25,"ExploitabilityScore":45,"ImpactScore":46,"ACInsufInfo":47,"ObtainAllPrivilege":47,"ObtainUserPrivilege":47,"ObtainOtherPrivilege":47,"UserInteractionRequired":47},{"Version":39,"VectorString":40,"AccessVector":21,"AccessComplexity":22,"Authentication":41,"ConfidentialityImpact":42,"IntegrityImpact":42,"AvailabilityImpact":42,"BaseScore":43,"BaseSeverity":44,"Exploitability":26,"RemediationLevel":26,"ReportConfidence":26,"TemporalScore":26,"CollateralDamagePotential":26,"TargetDistribution":26,"ConfidentialityRequirement":26,"IntegrityRequirement":26,"AvailabilityRequirement":26,"EnvironmentalScore":26},"2.0","AV:N\u002FAC:L\u002FAu:S\u002FC:C\u002FI:C\u002FA:C","SINGLE","COMPLETE",9,"",8,10,false,0.111,[48,48,48,48,48,48,48],"High",[52,57],{"vendor":53,"product":54,"version":55,"criteria":56,"vulnerable":4},"cisco","ios","*","cpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:*",{"vendor":53,"product":58,"version":55,"criteria":59,"vulnerable":4},"ios_xe","cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:*",2,[62,66,73,77,81],{"url":63,"source":64,"tags":65},"https:\u002F\u002Fsec.cloudapps.cisco.com\u002Fsecurity\u002Fcenter\u002Fcontent\u002FCiscoSecurityAdvisory\u002Fcisco-sa-20170629-snmp","Cisco",[],{"url":67,"source":68,"tags":69},"http:\u002F\u002Fwww.securityfocus.com\u002Fbid\u002F99345","Securityfocus",[70,71,72],"Broken Link","Third Party Advisory","VDB Entry",{"url":74,"source":75,"tags":76},"http:\u002F\u002Fwww.securitytracker.com\u002Fid\u002F1038808","Securitytracker",[70,71,72],{"url":78,"source":64,"tags":79},"https:\u002F\u002Ftools.cisco.com\u002Fsecurity\u002Fcenter\u002Fcontent\u002FCiscoSecurityAdvisory\u002Fcisco-sa-20170629-snmp",[80],"Vendor Advisory",{"url":82,"source":83,"tags":84},"https:\u002F\u002Fwww.cisa.gov\u002Fknown-exploited-vulnerabilities-catalog?field_cve=CVE-2017-6740","CISA",[],5,[87],{"id":88,"name":89,"description":90,"extendedDescription":91,"status":92,"abstraction":93,"structure":94},"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",1,{"shortDescription":44,"requiredAction":44,"vulnerabilityName":44,"dateAdded":26},[],{"title":99,"metaDescription":100,"keywords":101,"canonicalUrl":102,"structuredData":103},"What is CVE-2017-6740? Vulnerability Analysis | Security Advisory | Precursor Intelligence","Comprehensive analysis of CVE-2017-6740, a high severity cyber security vulnerability from 2017. The Simple Network Management Protocol (SNMP) subsystem of C...","CVE-2017-6740, CVE-2017-6740 vulnerability, CVE-2017-6740 security, high severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research, vulnerability assessment, cyber threats, 2017, CVSS score, exploit, patch, remediation, cisco security, ios vulnerability, ios_xe vulnerability","\u002Fwhat-is\u002Fcve-2017-6740",{"@context":104,"@type":105,"headline":99,"description":100,"datePublished":10,"dateModified":11,"author":106,"publisher":110,"about":114,"mainEntityOfPage":118,"articleSection":121,"keywords":122},"https:\u002F\u002Fschema.org","TechArticle",{"@type":107,"name":108,"url":109},"Organization","Precursor Intelligence","https:\u002F\u002Fprecursorintelligence.com",{"@type":107,"name":108,"url":109,"logo":111},{"@type":112,"url":113},"ImageObject","https:\u002F\u002Fprecursorintelligence.com\u002Fimg\u002Flogos\u002Feplogo.png",{"@type":115,"name":6,"description":116,"additionalType":117},"Thing","Cybersecurity Vulnerability","https:\u002F\u002Fschema.org\u002FSoftwareBug",{"@type":119,"@id":120},"WebPage","https:\u002F\u002Fprecursorintelligence.com\u002Fwhat-is\u002Fcve-2017-6740","Cybersecurity","CVE-2017-6740, CVE-2017-6740 vulnerability, CVE-2017-6740 security, high severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research",[124],{"Operator":26,"Negate":26,"Nodes":125},[126],{"Operator":127,"Negate":47,"CPEMatch":128},"OR",[129,133,137],{"Vulnerable":4,"Criteria":56,"MatchCriteriaID":130,"VersionStartExcluding":26,"VersionStartIncluding":131,"VersionEndExcluding":26,"VersionEndIncluding":132},"63ACD7DB-DCFE-4CDB-A3F0-4E413E178315","12.0","12.4",{"Vulnerable":4,"Criteria":56,"MatchCriteriaID":134,"VersionStartExcluding":26,"VersionStartIncluding":135,"VersionEndExcluding":26,"VersionEndIncluding":136},"650EB42C-D85F-482B-972D-7DCAC210DC48","15.0","15.6",{"Vulnerable":4,"Criteria":59,"MatchCriteriaID":138,"VersionStartExcluding":26,"VersionStartIncluding":139,"VersionEndExcluding":26,"VersionEndIncluding":140},"61E68EDC-8A69-446C-922A-57A6186786A8","2.2.0","3.17",[],[143],{"id":144,"eventType":145,"eventTime":146,"details":147,"label":148,"color":149},"69c1005f-5a10-4812-9f1b-e32d160c55c7","LOW_EPSS_DELTA","2026-05-05T18:29:51.419528+00:00","Daily EPSS score decreased by 0.186 on 2023-12-30","EPSS Score Decreased","green",{"lastModified":11,"cacheTime":151,"version":39},1792418378598,{"score":153,"band":50,"action":154,"scoredAt":155},77,"Emergency patch","2026-10-19T06:53:57.917397+00:00"]