{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2024-20353","assignerOrgId":"d1c1063e-7a18-46af-9102-31f8928bc633","state":"PUBLISHED","assignerShortName":"cisco","dateReserved":"2023-11-08T15:08:07.647Z","datePublished":"2024-04-24T18:15:57.646Z","dateUpdated":"2025-10-21T23:05:20.706Z"},"containers":{"cna":{"providerMetadata":{"orgId":"d1c1063e-7a18-46af-9102-31f8928bc633","shortName":"cisco","dateUpdated":"2024-04-24T18:15:57.646Z"},"descriptions":[{"lang":"en","value":"A vulnerability in the management and VPN web servers for Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause the device to reload unexpectedly, resulting in a denial of service (DoS) condition.\r\n\r This vulnerability is due to incomplete error checking when parsing an HTTP header. An attacker could exploit this vulnerability by sending a crafted HTTP request to a targeted web server on a device. A successful exploit could allow the attacker to cause a DoS condition when the device reloads."}],"affected":[{"vendor":"Cisco","product":"Cisco Adaptive Security Appliance (ASA) Software","versions":[{"version":"9.8.1","status":"affected"},{"version":"9.8.1.5","status":"affected"},{"version":"9.8.1.7","status":"affected"},{"version":"9.8.2","status":"affected"},{"version":"9.8.2.8","status":"affected"},{"version":"9.8.2.14","status":"affected"},{"version":"9.8.2.15","status":"affected"},{"version":"9.8.2.17","status":"affected"},{"version":"9.8.2.20","status":"affected"},{"version":"9.8.2.24","status":"affected"},{"version":"9.8.2.26","status":"affected"},{"version":"9.8.2.28","status":"affected"},{"version":"9.8.2.33","status":"affected"},{"version":"9.8.2.35","status":"affected"},{"version":"9.8.2.38","status":"affected"},{"version":"9.8.3.8","status":"affected"},{"version":"9.8.3.11","status":"affected"},{"version":"9.8.3.14","status":"affected"},{"version":"9.8.3.16","status":"affected"},{"version":"9.8.3.18","status":"affected"},{"version":"9.8.3.21","status":"affected"},{"version":"9.8.3","status":"affected"},{"version":"9.8.3.26","status":"affected"},{"version":"9.8.3.29","status":"affected"},{"version":"9.8.4","status":"affected"},{"version":"9.8.4.3","status":"affected"},{"version":"9.8.4.7","status":"affected"},{"version":"9.8.4.8","status":"affected"},{"version":"9.8.4.10","status":"affected"},{"version":"9.8.4.12","status":"affected"},{"version":"9.8.4.15","status":"affected"},{"version":"9.8.4.17","status":"affected"},{"version":"9.8.4.25","status":"affected"},{"version":"9.8.4.20","status":"affected"},{"version":"9.8.4.22","status":"affected"},{"version":"9.8.4.26","status":"affected"},{"version":"9.8.4.29","status":"affected"},{"version":"9.8.4.32","status":"affected"},{"version":"9.8.4.33","status":"affected"},{"version":"9.8.4.34","status":"affected"},{"version":"9.8.4.35","status":"affected"},{"version":"9.8.4.39","status":"affected"},{"version":"9.8.4.40","status":"affected"},{"version":"9.8.4.41","status":"affected"},{"version":"9.8.4.43","status":"affected"},{"version":"9.8.4.44","status":"affected"},{"version":"9.8.4.45","status":"affected"},{"version":"9.8.4.46","status":"affected"},{"version":"9.8.4.48","status":"affected"},{"version":"9.12.1","status":"affected"},{"version":"9.12.1.2","status":"affected"},{"version":"9.12.1.3","status":"affected"},{"version":"9.12.2","status":"affected"},{"version":"9.12.2.4","status":"affected"},{"version":"9.12.2.5","status":"affected"},{"version":"9.12.2.9","status":"affected"},{"version":"9.12.3","status":"affected"},{"version":"9.12.3.2","status":"affected"},{"version":"9.12.3.7","status":"affected"},{"version":"9.12.4","status":"affected"},{"version":"9.12.3.12","status":"affected"},{"version":"9.12.3.9","status":"affected"},{"version":"9.12.2.1","status":"affected"},{"version":"9.12.4.2","status":"affected"},{"version":"9.12.4.4","status":"affected"},{"version":"9.12.4.7","status":"affected"},{"version":"9.12.4.10","status":"affected"},{"version":"9.12.4.13","status":"affected"},{"version":"9.12.4.8","status":"affected"},{"version":"9.12.4.18","status":"affected"},{"version":"9.12.4.24","status":"affected"},{"version":"9.12.4.26","status":"affected"},{"version":"9.12.4.29","status":"affected"},{"version":"9.12.4.30","status":"affected"},{"version":"9.12.4.35","status":"affected"},{"version":"9.12.4.37","status":"affected"},{"version":"9.12.4.38","status":"affected"},{"version":"9.12.4.39","status":"affected"},{"version":"9.12.4.40","status":"affected"},{"version":"9.12.4.41","status":"affected"},{"version":"9.12.4.47","status":"affected"},{"version":"9.12.4.48","status":"affected"},{"version":"9.12.4.50","status":"affected"},{"version":"9.12.4.52","status":"affected"},{"version":"9.12.4.54","status":"affected"},{"version":"9.12.4.55","status":"affected"},{"version":"9.12.4.56","status":"affected"},{"version":"9.12.4.58","status":"affected"},{"version":"9.12.4.62","status":"affected"},{"version":"9.12.4.65","status":"affected"},{"version":"9.14.1","status":"affected"},{"version":"9.14.1.10","status":"affected"},{"version":"9.14.1.6","status":"affected"},{"version":"9.14.1.15","status":"affected"},{"version":"9.14.1.19","status":"affected"},{"version":"9.14.1.30","status":"affected"},{"version":"9.14.2","status":"affected"},{"version":"9.14.2.4","status":"affected"},{"version":"9.14.2.8","status":"affected"},{"version":"9.14.2.13","status":"affected"},{"version":"9.14.2.15","status":"affected"},{"version":"9.14.3","status":"affected"},{"version":"9.14.3.1","status":"affected"},{"version":"9.14.3.9","status":"affected"},{"version":"9.14.3.11","status":"affected"},{"version":"9.14.3.13","status":"affected"},{"version":"9.14.3.18","status":"affected"},{"version":"9.14.3.15","status":"affected"},{"version":"9.14.4","status":"affected"},{"version":"9.14.4.6","status":"affected"},{"version":"9.14.4.7","status":"affected"},{"version":"9.14.4.12","status":"affected"},{"version":"9.14.4.13","status":"affected"},{"version":"9.14.4.14","status":"affected"},{"version":"9.14.4.15","status":"affected"},{"version":"9.14.4.17","status":"affected"},{"version":"9.14.4.22","status":"affected"},{"version":"9.14.4.23","status":"affected"},{"version":"9.15.1","status":"affected"},{"version":"9.15.1.7","status":"affected"},{"version":"9.15.1.10","status":"affected"},{"version":"9.15.1.15","status":"affected"},{"version":"9.15.1.16","status":"affected"},{"version":"9.15.1.17","status":"affected"},{"version":"9.15.1.1","status":"affected"},{"version":"9.15.1.21","status":"affected"},{"version":"9.16.1","status":"affected"},{"version":"9.16.1.28","status":"affected"},{"version":"9.16.2","status":"affected"},{"version":"9.16.2.3","status":"affected"},{"version":"9.16.2.7","status":"affected"},{"version":"9.16.2.11","status":"affected"},{"version":"9.16.2.13","status":"affected"},{"version":"9.16.2.14","status":"affected"},{"version":"9.16.3","status":"affected"},{"version":"9.16.3.3","status":"affected"},{"version":"9.16.3.14","status":"affected"},{"version":"9.16.3.15","status":"affected"},{"version":"9.16.3.19","status":"affected"},{"version":"9.16.3.23","status":"affected"},{"version":"9.16.4","status":"affected"},{"version":"9.16.4.9","status":"affected"},{"version":"9.16.4.14","status":"affected"},{"version":"9.16.4.18","status":"affected"},{"version":"9.16.4.19","status":"affected"},{"version":"9.16.4.27","status":"affected"},{"version":"9.16.4.38","status":"affected"},{"version":"9.16.4.39","status":"affected"},{"version":"9.16.4.42","status":"affected"},{"version":"9.16.4.48","status":"affected"},{"version":"9.16.4.55","status":"affected"},{"version":"9.17.1","status":"affected"},{"version":"9.17.1.7","status":"affected"},{"version":"9.17.1.9","status":"affected"},{"version":"9.17.1.10","status":"affected"},{"version":"9.17.1.11","status":"affected"},{"version":"9.17.1.13","status":"affected"},{"version":"9.17.1.15","status":"affected"},{"version":"9.17.1.20","status":"affected"},{"version":"9.17.1.30","status":"affected"},{"version":"9.17.1.33","status":"affected"},{"version":"9.18.1","status":"affected"},{"version":"9.18.1.3","status":"affected"},{"version":"9.18.2","status":"affected"},{"version":"9.18.2.5","status":"affected"},{"version":"9.18.2.7","status":"affected"},{"version":"9.18.2.8","status":"affected"},{"version":"9.18.3","status":"affected"},{"version":"9.18.3.39","status":"affected"},{"version":"9.18.3.46","status":"affected"},{"version":"9.18.3.53","status":"affected"},{"version":"9.18.3.55","status":"affected"},{"version":"9.18.3.56","status":"affected"},{"version":"9.18.4","status":"affected"},{"version":"9.18.4.5","status":"affected"},{"version":"9.18.4.8","status":"affected"},{"version":"9.19.1","status":"affected"},{"version":"9.19.1.5","status":"affected"},{"version":"9.19.1.9","status":"affected"},{"version":"9.19.1.12","status":"affected"},{"version":"9.19.1.18","status":"affected"},{"version":"9.19.1.22","status":"affected"},{"version":"9.19.1.24","status":"affected"},{"version":"9.19.1.27","status":"affected"},{"version":"9.20.1","status":"affected"},{"version":"9.20.1.5","status":"affected"},{"version":"9.20.2","status":"affected"}]},{"vendor":"Cisco","product":"Cisco Firepower Threat Defense Software","versions":[{"version":"6.2.3","status":"affected"},{"version":"6.2.3.1","status":"affected"},{"version":"6.2.3.2","status":"affected"},{"version":"6.2.3.3","status":"affected"},{"version":"6.2.3.4","status":"affected"},{"version":"6.2.3.5","status":"affected"},{"version":"6.2.3.6","status":"affected"},{"version":"6.2.3.7","status":"affected"},{"version":"6.2.3.8","status":"affected"},{"version":"6.2.3.10","status":"affected"},{"version":"6.2.3.11","status":"affected"},{"version":"6.2.3.9","status":"affected"},{"version":"6.2.3.12","status":"affected"},{"version":"6.2.3.13","status":"affected"},{"version":"6.2.3.14","status":"affected"},{"version":"6.2.3.15","status":"affected"},{"version":"6.2.3.16","status":"affected"},{"version":"6.2.3.17","status":"affected"},{"version":"6.2.3.18","status":"affected"},{"version":"6.6.0","status":"affected"},{"version":"6.6.0.1","status":"affected"},{"version":"6.6.1","status":"affected"},{"version":"6.6.3","status":"affected"},{"version":"6.6.4","status":"affected"},{"version":"6.6.5","status":"affected"},{"version":"6.6.5.1","status":"affected"},{"version":"6.6.5.2","status":"affected"},{"version":"6.6.7","status":"affected"},{"version":"6.6.7.1","status":"affected"},{"version":"6.4.0","status":"affected"},{"version":"6.4.0.1","status":"affected"},{"version":"6.4.0.3","status":"affected"},{"version":"6.4.0.2","status":"affected"},{"version":"6.4.0.4","status":"affected"},{"version":"6.4.0.5","status":"affected"},{"version":"6.4.0.6","status":"affected"},{"version":"6.4.0.7","status":"affected"},{"version":"6.4.0.8","status":"affected"},{"version":"6.4.0.9","status":"affected"},{"version":"6.4.0.10","status":"affected"},{"version":"6.4.0.11","status":"affected"},{"version":"6.4.0.12","status":"affected"},{"version":"6.4.0.13","status":"affected"},{"version":"6.4.0.14","status":"affected"},{"version":"6.4.0.15","status":"affected"},{"version":"6.4.0.16","status":"affected"},{"version":"6.4.0.17","status":"affected"},{"version":"6.7.0","status":"affected"},{"version":"6.7.0.1","status":"affected"},{"version":"6.7.0.2","status":"affected"},{"version":"6.7.0.3","status":"affected"},{"version":"7.0.0","status":"affected"},{"version":"7.0.0.1","status":"affected"},{"version":"7.0.1","status":"affected"},{"version":"7.0.1.1","status":"affected"},{"version":"7.0.2","status":"affected"},{"version":"7.0.2.1","status":"affected"},{"version":"7.0.3","status":"affected"},{"version":"7.0.4","status":"affected"},{"version":"7.0.5","status":"affected"},{"version":"7.0.6","status":"affected"},{"version":"7.0.6.1","status":"affected"},{"version":"7.1.0","status":"affected"},{"version":"7.1.0.1","status":"affected"},{"version":"7.1.0.2","status":"affected"},{"version":"7.1.0.3","status":"affected"},{"version":"7.2.0","status":"affected"},{"version":"7.2.0.1","status":"affected"},{"version":"7.2.1","status":"affected"},{"version":"7.2.2","status":"affected"},{"version":"7.2.3","status":"affected"},{"version":"7.2.4","status":"affected"},{"version":"7.2.4.1","status":"affected"},{"version":"7.2.5","status":"affected"},{"version":"7.2.5.1","status":"affected"},{"version":"7.3.0","status":"affected"},{"version":"7.3.1","status":"affected"},{"version":"7.3.1.1","status":"affected"},{"version":"7.4.0","status":"affected"},{"version":"7.4.1","status":"affected"}]}],"problemTypes":[{"descriptions":[{"lang":"en","description":"Loop with Unreachable Exit Condition ('Infinite Loop')","type":"cwe","cweId":"CWE-835"}]}],"references":[{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-websrvs-dos-X8gNucD2","name":"cisco-sa-asaftd-websrvs-dos-X8gNucD2"}],"metrics":[{"format":"cvssV3_1","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H","baseScore":8.6,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"}}],"exploits":[{"lang":"en","value":"Cisco has confirmed that this vulnerability has been exploited. Cisco strongly recommends that customers upgrade to fixed software to resolve this vulnerability. Customers are also strongly encouraged to monitor system logs for indicators of undocumented configuration changes, unscheduled reboots, and any anomalous credential activity."}],"source":{"advisory":"cisco-sa-asaftd-websrvs-dos-X8gNucD2","discovery":"EXTERNAL","defects":["CSCwj10955"]}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2024-20353","role":"CISA Coordinator","options":[{"Exploitation":"active"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2024-04-29T20:02:41.285934Z"}}},{"other":{"type":"kev","content":{"dateAdded":"2024-04-24","reference":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-20353"}}}],"affected":[{"cpes":["cpe:2.3:a:cisco:asa:9.8.1:*:*:*:*:*:*:*"],"vendor":"cisco","product":"asa","versions":[{"status":"affected","version":"9.8.1","versionType":"custom","lessThanOrEqual":"9.8.4.48"}],"defaultStatus":"unknown"},{"cpes":["cpe:2.3:a:cisco:asa:9.12.1:*:*:*:*:*:*:*"],"vendor":"cisco","product":"asa","versions":[{"status":"affected","version":"9.12.1","versionType":"custom","lessThanOrEqual":"9.12.4.65"}],"defaultStatus":"unknown"},{"cpes":["cpe:2.3:a:cisco:asa:9.14.1:*:*:*:*:*:*:*"],"vendor":"cisco","product":"asa","versions":[{"status":"affected","version":"9.14.1","lessThan":"9.14.4.23","versionType":"custom"}],"defaultStatus":"unknown"},{"cpes":["cpe:2.3:a:cisco:asa:9.15.1:*:*:*:*:*:*:*"],"vendor":"cisco","product":"asa","versions":[{"status":"affected","version":"9.15.1","versionType":"custom","lessThanOrEqual":"9.15.1.21"}],"defaultStatus":"unknown"},{"cpes":["cpe:2.3:a:cisco:asa:9.16.1:*:*:*:*:*:*:*"],"vendor":"cisco","product":"asa","versions":[{"status":"affected","version":"9.16.1","versionType":"custom","lessThanOrEqual":"9.16.4.55"}],"defaultStatus":"unknown"},{"cpes":["cpe:2.3:a:cisco:asa:9.17.1:*:*:*:*:*:*:*"],"vendor":"cisco","product":"asa","versions":[{"status":"affected","version":"9.17.1","versionType":"custom","lessThanOrEqual":"9.17.1.33"}],"defaultStatus":"unknown"},{"cpes":["cpe:2.3:a:cisco:asa:9.18.1:*:*:*:*:*:*:*"],"vendor":"cisco","product":"asa","versions":[{"status":"affected","version":"9.18.1","versionType":"custom","lessThanOrEqual":"9.18.4.8"}],"defaultStatus":"unknown"},{"cpes":["cpe:2.3:a:cisco:asa:9.19.1:*:*:*:*:*:*:*"],"vendor":"cisco","product":"asa","versions":[{"status":"affected","version":"9.19.1","versionType":"custom","lessThanOrEqual":"9.19.1.27"}],"defaultStatus":"unknown"},{"cpes":["cpe:2.3:a:cisco:asa:9.20.1:*:*:*:*:*:*:*"],"vendor":"cisco","product":"asa","versions":[{"status":"affected","version":"9.20.1","versionType":"custom","lessThanOrEqual":"9.20.2"}],"defaultStatus":"unknown"},{"cpes":["cpe:2.3:a:cisco:firepower_threat_defense_software:6.2.3:*:*:*:*:*:*:*"],"vendor":"cisco","product":"firepower_threat_defense_software","versions":[{"status":"affected","version":"6.2.3","versionType":"custom","lessThanOrEqual":"6.2.3.18"}],"defaultStatus":"unknown"},{"cpes":["cpe:2.3:a:cisco:firepower_threat_defense_software:6.6.0:*:*:*:*:*:*:*"],"vendor":"cisco","product":"firepower_threat_defense_software","versions":[{"status":"affected","version":"6.6.0","versionType":"custom","lessThanOrEqual":"6.6.7.1"}],"defaultStatus":"unknown"},{"cpes":["cpe:2.3:a:cisco:firepower_threat_defense_software:6.4.0:*:*:*:*:*:*:*"],"vendor":"cisco","product":"firepower_threat_defense_software","versions":[{"status":"affected","version":"6.4.0","versionType":"custom","lessThanOrEqual":"6.4.0.17"}],"defaultStatus":"unknown"},{"cpes":["cpe:2.3:a:cisco:firepower_threat_defense_software:6.7.0:*:*:*:*:*:*:*"],"vendor":"cisco","product":"firepower_threat_defense_software","versions":[{"status":"affected","version":"6.7.0","versionType":"custom","lessThanOrEqual":"6.7.0.3"}],"defaultStatus":"unknown"},{"cpes":["cpe:2.3:a:cisco:firepower_threat_defense_software:7.0.0:*:*:*:*:*:*:*"],"vendor":"cisco","product":"firepower_threat_defense_software","versions":[{"status":"affected","version":"7.0.0","versionType":"custom","lessThanOrEqual":"7.0.6"}],"defaultStatus":"unknown"},{"cpes":["cpe:2.3:a:cisco:firepower_threat_defense_software:7.1.0:*:*:*:*:*:*:*"],"vendor":"cisco","product":"firepower_threat_defense_software","versions":[{"status":"affected","version":"7.1.0","versionType":"custom","lessThanOrEqual":"7.1.0.3"}],"defaultStatus":"unknown"},{"cpes":["cpe:2.3:a:cisco:firepower_threat_defense_software:7.2.0:*:*:*:*:*:*:*"],"vendor":"cisco","product":"firepower_threat_defense_software","versions":[{"status":"affected","version":"7.2.0","versionType":"custom","lessThanOrEqual":"7.2.4.1"}],"defaultStatus":"unknown"},{"cpes":["cpe:2.3:a:cisco:firepower_threat_defense_software:7.3.0:*:*:*:*:*:*:*"],"vendor":"cisco","product":"firepower_threat_defense_software","versions":[{"status":"affected","version":"7.3.0","versionType":"custom","lessThanOrEqual":"7.3.1.1"}],"defaultStatus":"unknown"},{"cpes":["cpe:2.3:a:cisco:firepower_threat_defense_software:7.4.0:*:*:*:*:*:*:*"],"vendor":"cisco","product":"firepower_threat_defense_software","versions":[{"status":"affected","version":"7.4.0","versionType":"custom","lessThanOrEqual":"7.4.1"}],"defaultStatus":"unknown"}],"references":[{"url":"https://blog.talosintelligence.com/arcanedoor-new-espionage-focused-campaign-found-targeting-perimeter-network-devices/","tags":["exploit"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-20353","tags":["government-resource"]}],"timeline":[{"time":"2024-04-24T00:00:00.000Z","lang":"en","value":"CVE-2024-20353 added to CISA KEV"}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2025-10-21T23:05:20.706Z"}},{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-01T21:59:41.487Z"},"title":"CVE Program Container","references":[{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-websrvs-dos-X8gNucD2","name":"cisco-sa-asaftd-websrvs-dos-X8gNucD2","tags":["x_transferred"]}]}]}}