[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fnrNxpSsyX6WoBDuKuw1EzFQm5hrW8b7dFd1_jZmJoG0":3,"g5a-risk:CVE-2019-1686":180},{"success":4,"data":5,"meta":178},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":88,"references":89,"referencesCount":101,"weaknesses":102,"weaknessesCount":111,"isActivelyExploited":112,"cisaInfo":26,"otxData":26,"relatedBlogPosts":113,"seoMetadata":114,"configurations":139,"relatedVendorCves":176,"notableEvents":177},"CVE-2019-1686","What is CVE-2019-1686?","A vulnerability in the TCP flags inspection feature for access control lists (ACLs) on Cisco ASR 9000 Series Aggregation Services Routers could allow an unauthenticated, remote attacker to bypass protection offered by a configured ACL on an affected device. The vulnerability is due to incorrect processing of the ACL applied to an interface of an affected device when Cisco Express Forwarding load balancing using the 3-tuple hash algorithm is enabled. An attacker could exploit this vulnerability by sending traffic through an affected device that should otherwise be denied by the configured ACL. An exploit could allow the attacker to bypass protection offered by a configured ACL on the affected device. There are workarounds that address this vulnerability. Affected Cisco IOS XR versions are: Cisco IOS XR Software Release 5.1.1 and later till first fixed. First Fixed Releases: 6.5.2 and later, 6.6.1 and later.","A vulnerability in the TCP flags inspection feature for access control lists (ACLs) on Cisco ASR 9000 Series Aggregation Services Routers could allow an 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CVE-2019-1686? Vulnerability Analysis | Security Advisory | Precursor Intelligence","Comprehensive analysis of CVE-2019-1686, a high severity cyber security vulnerability from 2019. A vulnerability in the TCP flags inspection feature for acce...","CVE-2019-1686, CVE-2019-1686 vulnerability, CVE-2019-1686 security, high severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research, vulnerability assessment, cyber threats, 2019, CVSS score, exploit, patch, remediation, cisco security, ios_xr vulnerability, asr_9000v vulnerability, asr_9001 vulnerability, asr_9006 vulnerability, asr_9010 vulnerability","\u002Fwhat-is\u002Fcve-2019-1686",{"@context":120,"@type":121,"headline":115,"description":116,"datePublished":10,"dateModified":11,"author":122,"publisher":126,"about":130,"mainEntityOfPage":134,"articleSection":137,"keywords":138},"https:\u002F\u002Fschema.org","TechArticle",{"@type":123,"name":124,"url":125},"Organization","Precursor Intelligence","https:\u002F\u002Fprecursorintelligence.com",{"@type":123,"name":124,"url":125,"logo":127},{"@type":128,"url":129},"ImageObject","https:\u002F\u002Fprecursorintelligence.com\u002Fimg\u002Flogos\u002Feplogo.png",{"@type":131,"name":6,"description":132,"additionalType":133},"Thing","Cybersecurity Vulnerability","https:\u002F\u002Fschema.org\u002FSoftwareBug",{"@type":135,"@id":136},"WebPage","https:\u002F\u002Fprecursorintelligence.com\u002Fwhat-is\u002Fcve-2019-1686","Cybersecurity","CVE-2019-1686, CVE-2019-1686 vulnerability, CVE-2019-1686 security, high severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research",[140],{"Operator":141,"Negate":26,"Nodes":142},"AND",[143,154],{"Operator":144,"Negate":26,"CPEMatch":145},"OR",[146,150],{"Vulnerable":4,"Criteria":56,"MatchCriteriaID":147,"VersionStartExcluding":26,"VersionStartIncluding":148,"VersionEndExcluding":149,"VersionEndIncluding":26},"BDD6EC92-3034-48C9-9A95-46585CAE18B6","5.1.1","6.5.2",{"Vulnerable":4,"Criteria":56,"MatchCriteriaID":151,"VersionStartExcluding":26,"VersionStartIncluding":152,"VersionEndExcluding":153,"VersionEndIncluding":26},"77C49A71-2711-41E7-93E7-AD14F83A48D9","6.5.3","6.6.1",{"Operator":144,"Negate":26,"CPEMatch":155},[156,158,160,162,164,166,168,170,172,174],{"Vulnerable":26,"Criteria":60,"MatchCriteriaID":157,"VersionStartExcluding":26,"VersionStartIncluding":26,"VersionEndExcluding":26,"VersionEndIncluding":26},"71BD158E-71D8-4DCA-8C09-F8AB7EF0EBDD",{"Vulnerable":26,"Criteria":63,"MatchCriteriaID":159,"VersionStartExcluding":26,"VersionStartIncluding":26,"VersionEndExcluding":26,"VersionEndIncluding":26},"324C97E6-1810-404F-9F45-6240F99FF039",{"Vulnerable":26,"Criteria":66,"MatchCriteriaID":161,"VersionStartExcluding":26,"VersionStartIncluding":26,"VersionEndExcluding":26,"VersionEndIncluding":26},"57EB55BB-41B7-40A1-B6F5-142FE8AB4C16",{"Vulnerable":26,"Criteria":69,"MatchCriteriaID":163,"VersionStartExcluding":26,"VersionStartIncluding":26,"VersionEndExcluding":26,"VersionEndIncluding":26},"433F4A82-04A4-4EAA-8C19-F7581DCD8D29",{"Vulnerable":26,"Criteria":72,"MatchCriteriaID":165,"VersionStartExcluding":26,"VersionStartIncluding":26,"VersionEndExcluding":26,"VersionEndIncluding":26},"2D5E60AB-94FF-448A-89D8-5D2197E21C74",{"Vulnerable":26,"Criteria":75,"MatchCriteriaID":167,"VersionStartExcluding":26,"VersionStartIncluding":26,"VersionEndExcluding":26,"VersionEndIncluding":26},"A93212A4-50AB-42E7-89A4-5FBBAEA050C3",{"Vulnerable":26,"Criteria":78,"MatchCriteriaID":169,"VersionStartExcluding":26,"VersionStartIncluding":26,"VersionEndExcluding":26,"VersionEndIncluding":26},"EDA53A61-98B3-458C-8893-61CD7D6B1E48",{"Vulnerable":26,"Criteria":81,"MatchCriteriaID":171,"VersionStartExcluding":26,"VersionStartIncluding":26,"VersionEndExcluding":26,"VersionEndIncluding":26},"F396564E-B477-4A27-A189-CEB737552E25",{"Vulnerable":26,"Criteria":84,"MatchCriteriaID":173,"VersionStartExcluding":26,"VersionStartIncluding":26,"VersionEndExcluding":26,"VersionEndIncluding":26},"5445CC54-ACFB-4070-AF26-F91FEAA85181",{"Vulnerable":26,"Criteria":87,"MatchCriteriaID":175,"VersionStartExcluding":26,"VersionStartIncluding":26,"VersionEndExcluding":26,"VersionEndIncluding":26},"D7AA58E5-D7E1-48CF-93FF-C60EB85B2BC7",[],[],{"lastModified":11,"cacheTime":179,"version":42},1792368156574,{"score":181,"band":182,"action":183,"scoredAt":184},47,"Medium","Plan remediation","2026-10-16T06:46:00.190785+00:00"]