{"schema_version":"public-product-v1.1","generated_at":"2026-07-21T11:02:12Z","exposure_verdict":"not_assessed","verdict_reason":"Public evidence does not evaluate exact release, platform, enabled features, configuration, compensating controls, or live exposure.","advisory":{"id":"cisco-sa-asa-ssh-dos-eEDWu5RM","slug":"cisco-sa-asa-ssh-dos-eedwu5rm","vendor":"Cisco","title":"Cisco Adaptive Security Appliance Software SSH Server Resource Denial of Service Vulnerability","summary":"A vulnerability in the SSH server of Cisco Adaptive Security Appliance (ASA) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition for the SSH server of an affected device. This vulnerability is due to a logic error when an SSH session is established. An attacker could exploit this vulnerability by sending crafted SSH messages to an affected device. A successful exploit could allow the attacker to exhaust available SSH resources on the affected device so that new SSH connections to the device are denied, resulting in a DoS condition. Existing SSH connections to the device would continue to function normally. The device must be rebooted manually to recover. However, user traffic would not be impacted and could be managed using a remote application such as Cisco Adaptive Security Device Manager (ASDM). Cisco has released software updates that address this vulnerability. There are workarounds that address this vulnerability. This advisory is available at the following link:https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asa-ssh-dos-eEDWu5RM This advisory is part of the October 2024 release of the Cisco ASA, FMC, and FTD Software Security Advisory Bundled Publication. For a complete list of the advisories and links to them, see Cisco Event Response: October 2024 Semiannual Cisco ASA, FMC, and FTD Software Security Advisory Bundled Publication.","severity":"Medium","published_at":"2024-10-23T16:00:00Z","updated_at":"2024-10-23T16:00:00Z","source_url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asa-ssh-dos-eEDWu5RM","csaf_url":"https://sec.cloudapps.cisco.com/security/center/contentjson/CiscoSecurityAdvisory/cisco-sa-asa-ssh-dos-eEDWu5RM/csaf/cisco-sa-asa-ssh-dos-eEDWu5RM.json","exposure_verdict":"not_assessed","verdict_reason":"Public evidence does not evaluate exact release, platform, enabled features, configuration, compensating controls, or live exposure."},"freshness":{"last_source_refreshed_at":"2026-07-21T05:16:34Z","latest_source_refresh_at":"2026-07-21T05:16:34Z","oldest_source_refresh_at":"2026-07-21T03:00:03Z","all_sources_fresh":true,"sources":[{"source":"cisco_advisories","label":"Cisco advisories","last_success_at":"2026-07-21T03:00:03Z","stale":false},{"source":"cisco_csaf","label":"Cisco CSAF","last_success_at":"2026-07-21T05:14:24Z","stale":false},{"source":"nvd_cves","label":"NVD CVEs","last_success_at":"2026-07-21T05:16:30Z","stale":false},{"source":"cisa_kev","label":"CISA KEV","last_success_at":"2026-07-21T05:16:31Z","stale":false},{"source":"first_epss","label":"EPSS","last_success_at":"2026-07-21T05:16:34Z","stale":false}]},"summary":{"cve_count":1,"visible_product_count":9,"public_evidence_count":9,"kev_count":0,"highest_epss":0.00469},"cves":[{"id":"CVE-2024-20526","kev":false,"epss":{"score":0.00469,"percentile":0.37667,"score_date":"2026-07-20","updated_at":"2026-07-21T05:16:34Z"}}],"public_evidence":[{"product":{"name":"Cisco Firepower 2100 Series","slug":"cisco-firepower-2100-series","vendor":"Cisco"},"cve":{"id":"CVE-2024-20526"},"evidence_type":"structured_affected","evidence_label":{"scope":"CSAF product evidence","label":"product_status known affected"},"evidence_source":"Cisco CSAF","source":"Cisco CSAF","source_document_fetched_at":"2026-07-20T04:42:00Z","csaf_status":"known_affected","csaf_product_status":"known_affected","csaf_product_status_path":"vulnerabilities[].product_status.known_affected","raw_product_name":"Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.16.4.67 when installed on Cisco Firepower 2100 Series; Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.18.4.40 when installed on Cisco Firepower 2100 Series; Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.20.3 when installed on Cisco Firepower 2100 Series","exposure_verdict":"not_assessed","verdict_reason":"Public evidence does not evaluate exact release, platform, enabled features, configuration, compensating controls, or live exposure.","exposure_verdict_reason":"Public evidence does not evaluate exact release, platform, enabled features, configuration, compensating controls, or live exposure.","kev":false,"epss":{"score":0.00469,"score_date":"2026-07-20","updated_at":"2026-07-21T05:16:34Z"},"published_at":"2024-10-23T16:00:00Z","updated_at":"2024-10-23T16:00:00Z","advisory_updated_at":"2024-10-23T16:00:00Z","source_url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asa-ssh-dos-eEDWu5RM","remediation":{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asa-ssh-dos-eEDWu5RM"},"row_display_order":1},{"product":{"name":"Cisco Firepower 1000 Series","slug":"cisco-firepower-1000-series","vendor":"Cisco"},"cve":{"id":"CVE-2024-20526"},"evidence_type":"structured_affected","evidence_label":{"scope":"CSAF product evidence","label":"product_status known affected"},"evidence_source":"Cisco CSAF","source":"Cisco CSAF","source_document_fetched_at":"2026-07-20T04:42:00Z","csaf_status":"known_affected","csaf_product_status":"known_affected","csaf_product_status_path":"vulnerabilities[].product_status.known_affected","raw_product_name":"Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.16.4.67 when installed on Cisco Firepower 1000 Series; Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.18.4.40 when installed on Cisco Firepower 1000 Series; Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.20.3 when installed on Cisco Firepower 1000 Series","exposure_verdict":"not_assessed","verdict_reason":"Public evidence does not evaluate exact release, platform, enabled features, configuration, compensating controls, or live exposure.","exposure_verdict_reason":"Public evidence does not evaluate exact release, platform, enabled features, configuration, compensating controls, or live exposure.","kev":false,"epss":{"score":0.00469,"score_date":"2026-07-20","updated_at":"2026-07-21T05:16:34Z"},"published_at":"2024-10-23T16:00:00Z","updated_at":"2024-10-23T16:00:00Z","advisory_updated_at":"2024-10-23T16:00:00Z","source_url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asa-ssh-dos-eEDWu5RM","remediation":{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asa-ssh-dos-eEDWu5RM"},"row_display_order":2},{"product":{"name":"Cisco 3000 Series Industrial Security Appliances (ISA)","slug":"cisco-3000-series-industrial-security-appliances-isa","vendor":"Cisco"},"cve":{"id":"CVE-2024-20526"},"evidence_type":"structured_affected","evidence_label":{"scope":"CSAF product evidence","label":"product_status known affected"},"evidence_source":"Cisco CSAF","source":"Cisco CSAF","source_document_fetched_at":"2026-07-20T04:42:00Z","csaf_status":"known_affected","csaf_product_status":"known_affected","csaf_product_status_path":"vulnerabilities[].product_status.known_affected","raw_product_name":"Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.16.4.67 when installed on Cisco 3000 Series Industrial Security Appliances (ISA); Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.16.4.70 when installed on Cisco 3000 Series Industrial Security Appliances (ISA); Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.18.4.40 when installed on Cisco 3000 Series Industrial Security Appliances (ISA); Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.20.3 when installed on Cisco 3000 Series Industrial Security Appliances (ISA)","exposure_verdict":"not_assessed","verdict_reason":"Public evidence does not evaluate exact release, platform, enabled features, configuration, compensating controls, or live exposure.","exposure_verdict_reason":"Public evidence does not evaluate exact release, platform, enabled features, configuration, compensating controls, or live exposure.","kev":false,"epss":{"score":0.00469,"score_date":"2026-07-20","updated_at":"2026-07-21T05:16:34Z"},"published_at":"2024-10-23T16:00:00Z","updated_at":"2024-10-23T16:00:00Z","advisory_updated_at":"2024-10-23T16:00:00Z","source_url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asa-ssh-dos-eEDWu5RM","remediation":{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asa-ssh-dos-eEDWu5RM"},"row_display_order":3},{"product":{"name":"Cisco Firepower 9000 Series","slug":"cisco-firepower-9000-series","vendor":"Cisco"},"cve":{"id":"CVE-2024-20526"},"evidence_type":"structured_affected","evidence_label":{"scope":"CSAF product evidence","label":"product_status known affected"},"evidence_source":"Cisco CSAF","source":"Cisco CSAF","source_document_fetched_at":"2026-07-20T04:42:00Z","csaf_status":"known_affected","csaf_product_status":"known_affected","csaf_product_status_path":"vulnerabilities[].product_status.known_affected","raw_product_name":"Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.16.4.67 when installed on Cisco Firepower 9000 Series; Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.18.4.40 when installed on Cisco Firepower 9000 Series; Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.20.3 when installed on Cisco Firepower 9000 Series","exposure_verdict":"not_assessed","verdict_reason":"Public evidence does not evaluate exact release, platform, enabled features, configuration, compensating controls, or live exposure.","exposure_verdict_reason":"Public evidence does not evaluate exact release, platform, enabled features, configuration, compensating controls, or live exposure.","kev":false,"epss":{"score":0.00469,"score_date":"2026-07-20","updated_at":"2026-07-21T05:16:34Z"},"published_at":"2024-10-23T16:00:00Z","updated_at":"2024-10-23T16:00:00Z","advisory_updated_at":"2024-10-23T16:00:00Z","source_url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asa-ssh-dos-eEDWu5RM","remediation":{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asa-ssh-dos-eEDWu5RM"},"row_display_order":4},{"product":{"name":"Cisco Firepower 4100 Series","slug":"cisco-firepower-4100-series","vendor":"Cisco"},"cve":{"id":"CVE-2024-20526"},"evidence_type":"structured_affected","evidence_label":{"scope":"CSAF product evidence","label":"product_status known affected"},"evidence_source":"Cisco CSAF","source":"Cisco CSAF","source_document_fetched_at":"2026-07-20T04:42:00Z","csaf_status":"known_affected","csaf_product_status":"known_affected","csaf_product_status_path":"vulnerabilities[].product_status.known_affected","raw_product_name":"Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.16.4.67 when installed on Cisco Firepower 4100 Series; Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.18.4.40 when installed on Cisco Firepower 4100 Series; Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.20.3 when installed on Cisco Firepower 4100 Series","exposure_verdict":"not_assessed","verdict_reason":"Public evidence does not evaluate exact release, platform, enabled features, configuration, compensating controls, or live exposure.","exposure_verdict_reason":"Public evidence does not evaluate exact release, platform, enabled features, configuration, compensating controls, or live exposure.","kev":false,"epss":{"score":0.00469,"score_date":"2026-07-20","updated_at":"2026-07-21T05:16:34Z"},"published_at":"2024-10-23T16:00:00Z","updated_at":"2024-10-23T16:00:00Z","advisory_updated_at":"2024-10-23T16:00:00Z","source_url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asa-ssh-dos-eEDWu5RM","remediation":{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asa-ssh-dos-eEDWu5RM"},"row_display_order":5},{"product":{"name":"Cisco Adaptive Security Virtual Appliance (ASAv)","slug":"cisco-adaptive-security-virtual-appliance-asav","vendor":"Cisco"},"cve":{"id":"CVE-2024-20526"},"evidence_type":"structured_affected","evidence_label":{"scope":"CSAF product evidence","label":"product_status known affected"},"evidence_source":"Cisco CSAF","source":"Cisco CSAF","source_document_fetched_at":"2026-07-20T04:42:00Z","csaf_status":"known_affected","csaf_product_status":"known_affected","csaf_product_status_path":"vulnerabilities[].product_status.known_affected","raw_product_name":"Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.16.4.67 when installed on Cisco Adaptive Security Virtual Appliance (ASAv); Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.18.4.40 when installed on Cisco Adaptive Security Virtual Appliance (ASAv); Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.20.3 when installed on Cisco Adaptive Security Virtual Appliance (ASAv)","exposure_verdict":"not_assessed","verdict_reason":"Public evidence does not evaluate exact release, platform, enabled features, configuration, compensating controls, or live exposure.","exposure_verdict_reason":"Public evidence does not evaluate exact release, platform, enabled features, configuration, compensating controls, or live exposure.","kev":false,"epss":{"score":0.00469,"score_date":"2026-07-20","updated_at":"2026-07-21T05:16:34Z"},"published_at":"2024-10-23T16:00:00Z","updated_at":"2024-10-23T16:00:00Z","advisory_updated_at":"2024-10-23T16:00:00Z","source_url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asa-ssh-dos-eEDWu5RM","remediation":{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asa-ssh-dos-eEDWu5RM"},"row_display_order":6},{"product":{"name":"Cisco Secure Firewall 3100 Series","slug":"cisco-secure-firewall-3100-series","vendor":"Cisco"},"cve":{"id":"CVE-2024-20526"},"evidence_type":"structured_affected","evidence_label":{"scope":"CSAF product evidence","label":"product_status known affected"},"evidence_source":"Cisco CSAF","source":"Cisco CSAF","source_document_fetched_at":"2026-07-20T04:42:00Z","csaf_status":"known_affected","csaf_product_status":"known_affected","csaf_product_status_path":"vulnerabilities[].product_status.known_affected","raw_product_name":"Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.18.4.40 when installed on Cisco Secure Firewall 3100 Series; Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.20.3 when installed on Cisco Secure Firewall 3100 Series","exposure_verdict":"not_assessed","verdict_reason":"Public evidence does not evaluate exact release, platform, enabled features, configuration, compensating controls, or live exposure.","exposure_verdict_reason":"Public evidence does not evaluate exact release, platform, enabled features, configuration, compensating controls, or live exposure.","kev":false,"epss":{"score":0.00469,"score_date":"2026-07-20","updated_at":"2026-07-21T05:16:34Z"},"published_at":"2024-10-23T16:00:00Z","updated_at":"2024-10-23T16:00:00Z","advisory_updated_at":"2024-10-23T16:00:00Z","source_url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asa-ssh-dos-eEDWu5RM","remediation":{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asa-ssh-dos-eEDWu5RM"},"row_display_order":7},{"product":{"name":"Cisco Secure Firewall 4200 Series","slug":"cisco-secure-firewall-4200-series","vendor":"Cisco"},"cve":{"id":"CVE-2024-20526"},"evidence_type":"structured_affected","evidence_label":{"scope":"CSAF product evidence","label":"product_status known affected"},"evidence_source":"Cisco CSAF","source":"Cisco CSAF","source_document_fetched_at":"2026-07-20T04:42:00Z","csaf_status":"known_affected","csaf_product_status":"known_affected","csaf_product_status_path":"vulnerabilities[].product_status.known_affected","raw_product_name":"Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.20.3 when installed on Cisco Secure Firewall 4200 Series","exposure_verdict":"not_assessed","verdict_reason":"Public evidence does not evaluate exact release, platform, enabled features, configuration, compensating controls, or live exposure.","exposure_verdict_reason":"Public evidence does not evaluate exact release, platform, enabled features, configuration, compensating controls, or live exposure.","kev":false,"epss":{"score":0.00469,"score_date":"2026-07-20","updated_at":"2026-07-21T05:16:34Z"},"published_at":"2024-10-23T16:00:00Z","updated_at":"2024-10-23T16:00:00Z","advisory_updated_at":"2024-10-23T16:00:00Z","source_url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asa-ssh-dos-eEDWu5RM","remediation":{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asa-ssh-dos-eEDWu5RM"},"row_display_order":8},{"product":{"name":"Cisco ASA 5500-X Series Firewalls","slug":"cisco-asa-5500-x-series-firewalls","vendor":"Cisco"},"cve":{"id":"CVE-2024-20526"},"evidence_type":"structured_affected","evidence_label":{"scope":"CSAF product evidence","label":"product_status known affected"},"evidence_source":"Cisco CSAF","source":"Cisco CSAF","source_document_fetched_at":"2026-07-20T04:42:00Z","csaf_status":"known_affected","csaf_product_status":"known_affected","csaf_product_status_path":"vulnerabilities[].product_status.known_affected","raw_product_name":"Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.16.4.67 when installed on Cisco ASA 5500-X Series Firewalls","exposure_verdict":"not_assessed","verdict_reason":"Public evidence does not evaluate exact release, platform, enabled features, configuration, compensating controls, or live exposure.","exposure_verdict_reason":"Public evidence does not evaluate exact release, platform, enabled features, configuration, compensating controls, or live exposure.","kev":false,"epss":{"score":0.00469,"score_date":"2026-07-20","updated_at":"2026-07-21T05:16:34Z"},"published_at":"2024-10-23T16:00:00Z","updated_at":"2024-10-23T16:00:00Z","advisory_updated_at":"2024-10-23T16:00:00Z","source_url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asa-ssh-dos-eEDWu5RM","remediation":{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asa-ssh-dos-eEDWu5RM"},"row_display_order":9}]}