{"schemaVersion":3,"id":"CVE-2019-1693","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"A vulnerability in the WebVPN service of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper management of authenticated sessions in the WebVPN portal. An attacker could exploit this vulnerability by authenticating with valid credentials and accessing a specific URL in the WebVPN portal. A successful exploit could allow the attacker to cause the device to reload, resulting in a temporary DoS condition.","dates":{"published":"2019-05-03T15:05:17.556Z","modified":"2024-11-21T19:35:46.198Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":7.7,"severity":"high","version":"3.0","versionLabel":"v3.0","source":"CVE.org","vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.0","versionLabel":"v3.0","source":"CVE.org","score":7.7,"severity":"high","vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":6.5,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","exploitability":null,"impact":null,"computed":false},{"version":"3.0","versionLabel":"v3.0","source":"NVD","score":7.7,"severity":"high","vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H","exploitability":null,"impact":null,"computed":false},{"version":"2.0","versionLabel":"v2.0","source":"NVD","score":6.8,"severity":"medium","vector":"AV:N/AC:L/Au:S/C:N/I:N/A:C","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.02045,"percentile":0.8101,"severity":"low","asOf":"2026-10-21T00:00:00.000Z","change":{"pp":0.017,"baselineDate":"2026-09-21T00:00:00.000Z","baselineScore":0.02028},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.02028,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.02028,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.02028,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.02028,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.02028,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.02028,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.02028,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.02028,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.02028,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.02028,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.02028,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.02028,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.02028,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.02028,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.02028,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.02028,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.02028,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.02028,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.02028,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.02028,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.02028,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.02028,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.02045,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.02045,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.02045,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.02045,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.02045,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.02045,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.02045,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.02045,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.02045,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.02045,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.02045,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.02045,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.02045,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.02045,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.02045,"percentile":null},{"date":"2026-10-21T00:00:00.000Z","score":0.02045,"percentile":0.8101}],"last30":[{"date":"2026-09-21T00:00:00.000Z","score":0.02028,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.02028,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.02028,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.02028,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.02028,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.02028,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.02028,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.02028,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.02028,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.02028,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.02028,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.02028,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.02028,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.02028,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.02028,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.02045,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.02045,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.02045,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.02045,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.02045,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.02045,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.02045,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.02045,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.02045,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.02045,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.02045,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.02045,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.02045,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.02045,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.02045,"percentile":null},{"date":"2026-10-21T00:00:00.000Z","score":0.02045,"percentile":0.8101}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[{"id":"CWE-399","name":"Resource Management Errors","description":"Weaknesses in this category are related to improper management of system resources.","type":"category","status":"Draft","abstraction":null,"likelihoodOfExploit":null,"url":"https://cwe.mitre.org/data/definitions/399.html"}],"affected":[{"vendor":"cisco","product":"adaptive_security_appliance_software","name":"adaptive security appliance software","label":"adaptive_security_appliance_software","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< 9.4.4.34","noFixRecorded":false,"fixedIn":null},{"text":"≥ 9.5, < 9.6.4.25","noFixRecorded":false,"fixedIn":null},{"text":"≥ 9.7, < 9.8.4","noFixRecorded":false,"fixedIn":null},{"text":"≥ 9.9, < 9.9.2.50","noFixRecorded":false,"fixedIn":null},{"text":"≥ 9.10, < 9.10.1.17","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 9.4.4.34 | ≥ 9.5, < 9.6.4.25 | ≥ 9.7, < 9.8.4 | ≥ 9.9, < 9.9.2.50 | ≥ 9.10, < 9.10.1.17","eol":null,"hubHref":"/vendor/cisco/adaptive_security_appliance_software"},{"vendor":"cisco","product":"cisco adaptive security appliance (asa) software","name":"Cisco Adaptive Security Appliance (ASA) Software","label":"cisco adaptive security appliance (asa) software","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ unspecified, < 9.4.4.34","noFixRecorded":false,"fixedIn":null},{"text":"≥ unspecified, < 9.6.4.25","noFixRecorded":false,"fixedIn":null},{"text":"≥ unspecified, < 9.8.4","noFixRecorded":false,"fixedIn":null},{"text":"≥ unspecified, < 9.9.2.50","noFixRecorded":false,"fixedIn":null},{"text":"≥ unspecified, < 9.10.1.17","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ unspecified, < 9.4.4.34 | ≥ unspecified, < 9.6.4.25 | ≥ unspecified, < 9.8.4 | ≥ unspecified, < 9.9.2.50 | ≥ unspecified, < 9.10.1.17","eol":null,"hubHref":"/vendor/cisco/cisco_adaptive_security_appliance_asa_software"},{"vendor":"cisco","product":"cisco firepower threat defense (ftd) software","name":"Cisco Firepower Threat Defense (FTD) Software","label":"cisco firepower threat defense (ftd) software","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ unspecified, < 6.2.3.12","noFixRecorded":false,"fixedIn":null},{"text":"≥ unspecified, < 6.3.0.3","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ unspecified, < 6.2.3.12 | ≥ unspecified, < 6.3.0.3","eol":null,"hubHref":"/vendor/cisco/cisco_firepower_threat_defense_ftd_software"},{"vendor":"cisco","product":"secure_firewall_threat_defense","name":"secure firewall threat defense","label":"secure_firewall_threat_defense","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 6.2.1, < 6.2.3.12","noFixRecorded":false,"fixedIn":null},{"text":"≥ 6.3.0, < 6.3.0.3","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 6.2.1, < 6.2.3.12 | ≥ 6.3.0, < 6.3.0.3","eol":null,"hubHref":"/vendor/cisco/secure_firewall_threat_defense"}],"affectedCount":4,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-asa-ftd-dos","label":"tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-asa-ftd-dos","hostname":"tools.cisco.com","tags":["Vendor Advisory","X Refsource CISCO"]},{"url":"http://www.securityfocus.com/bid/108157","label":"www.securityfocus.com/bid/108157","hostname":"www.securityfocus.com","tags":["VDB Entry","X Refsource BID","Third Party Advisory"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2019-05-03T15:05:17.556Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2024-11-21T19:35:46.198Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":31,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-21T23:29:44.766Z","stale":false,"partial":false}}