{"id":"CVE-2013-1193","aliases":["EUVD-2013-1233","GHSA-m4wj-9f5c-24h8"],"status":"published","title":"The Secure Shell (SSH) implementation on Cisco Adaptive Security Appliances (ASA) devices, and in...","description":"The Secure Shell (SSH) implementation on Cisco Adaptive Security Appliances (ASA) devices, and in Cisco Firewall Services Module (FWSM), does not properly terminate sessions, which allows remote attackers to cause a denial of service (SSH service outage) by repeatedly establishing SSH connections, aka Bug IDs CSCue63881, CSCuf51892, CSCue78671, and CSCug26937.","severity":{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.01753,"percentile":0.78036,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2013-04-16T10:00:00Z","modified":"2026-06-16T23:51:00Z","products":[{"vendor":"cisco","product":"adaptive_security_appliance_software"},{"vendor":"cisco","product":"firewall_services_module"}],"references":[{"url":"http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2013-1193","tags":["vendor-advisory","x_refsource_CISCO","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2013-1193"},{"url":"https://github.com/advisories/GHSA-m4wj-9f5c-24h8"}],"sources":{"cve":[{"id":"CVE-2013-1193","description":"The Secure Shell (SSH) implementation on Cisco Adaptive Security Appliances (ASA) devices, and in Cisco Firewall Services Module (FWSM), does not properly terminate sessions, which allows remote attackers to cause a denial of service (SSH service outage) by repeatedly establishing SSH connections, aka Bug IDs CSCue63881, CSCuf51892, CSCue78671, and CSCug26937.","status":"published","published":"2013-04-16T10:00:00Z","modified":"2024-09-16T16:18:13.827Z","updated_at":"2026-11-02T14:34:58.882751Z"}],"euvd":[{"id":"EUVD-2013-1233","description":"The Secure Shell (SSH) implementation on Cisco Adaptive Security Appliances (ASA) devices, and in Cisco Firewall Services Module (FWSM), does not properly terminate sessions, which allows remote attackers to cause a denial of service (SSH service outage) by repeatedly establishing SSH connections, aka Bug IDs CSCue63881, CSCuf51892, CSCue78671, and CSCug26937.","status":"published","published":"2013-04-16T10:00:00Z","modified":"2024-09-16T16:18:13Z","updated_at":"2026-11-03T00:55:53.022594Z"}],"ghsa":[{"id":"GHSA-m4wj-9f5c-24h8","title":"The Secure Shell (SSH) implementation on Cisco Adaptive Security Appliances (ASA) devices, and in...","description":"The Secure Shell (SSH) implementation on Cisco Adaptive Security Appliances (ASA) devices, and in Cisco Firewall Services Module (FWSM), does not properly terminate sessions, which allows remote attackers to cause a denial of service (SSH service outage) by repeatedly establishing SSH connections, aka Bug IDs CSCue63881, CSCuf51892, CSCue78671, and CSCug26937.","status":"published","published":"2022-05-17T05:11:39Z","modified":"2023-01-28T05:03:31Z","updated_at":"2026-11-02T14:43:59.339521Z"}],"nvd":[{"id":"CVE-2013-1193","description":"The Secure Shell (SSH) implementation on Cisco Adaptive Security Appliances (ASA) devices, and in Cisco Firewall Services Module (FWSM), does not properly terminate sessions, which allows remote attackers to cause a denial of service (SSH service outage) by repeatedly establishing SSH connections, aka Bug IDs CSCue63881, CSCuf51892, CSCue78671, and CSCug26937.","status":"published","published":"2013-04-16T14:04:30.917Z","modified":"2026-06-16T23:51:00.09Z","cvss":[{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:02:24.091325Z"}]}}