{"schema_version":1,"title":"Cisco Secure Firewall Adaptive Security Appliance (ASA) Software vulnerabilities","summary":"Junglewise Threat Intelligence has tracked 8 vulnerabilities in Cisco Secure Firewall Adaptive Security Appliance (ASA) Software: 0 in the last 7 days and 2 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-20248, was published on 16 September 2026.","url":"https://junglewise.ai/threats/technologies/secure-firewall-adaptive-security-appliance-asa-software","json_url":"https://junglewise.ai/threats/technologies/secure-firewall-adaptive-security-appliance-asa-software.json","publisher":"Junglewise Threat Intelligence","license":"CC-BY-4.0","license_url":"https://creativecommons.org/licenses/by/4.0/","attribution":"Junglewise Threat Intelligence, https://junglewise.ai/threats/technologies/secure-firewall-adaptive-security-appliance-asa-software","sources":"NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories","kind":"technology","counts":{"high":4,"all_time":8,"critical":0,"exploited":0,"last_7_days":0,"last_30_days":2,"last_90_days":2,"last_365_days":8},"latest":[{"cve":"CVE-2026-20248","cvss":6.8,"epss":0.0034,"slug":"cve-2026-20248-cisco-secure-firewall-asa-ftd-dns-over-tcp-denial-of-service","title":"Cisco Secure Firewall ASA/FTD DNS over TCP denial of service","severity":"medium","exploited":false,"published_at":"2026-09-16T21:17:08.32+00:00","url":"https://junglewise.ai/threats/cve-2026-20248-cisco-secure-firewall-asa-ftd-dns-over-tcp-denial-of-service"},{"cve":"CVE-2026-20154","cvss":8.6,"epss":0.004,"slug":"cve-2026-20154-cisco-secure-firewall-asa-ftd-denial-of-service-in-syslog-rate","title":"Cisco Secure Firewall ASA/FTD denial of service in syslog rate limiting","severity":"high","exploited":false,"published_at":"2026-09-16T21:17:07.723+00:00","url":"https://junglewise.ai/threats/cve-2026-20154-cisco-secure-firewall-asa-ftd-denial-of-service-in-syslog-rate"},{"cve":"CVE-2026-20023","cvss":6.1,"epss":0.0015,"slug":"cve-2026-20023-cisco-secure-firewall-asa-and-ftd-ospf-memory-corruption-denial","title":"Cisco Secure Firewall ASA and FTD OSPF memory corruption denial of service","severity":"medium","exploited":false,"published_at":"2026-03-04T19:16:14.627+00:00","url":"https://junglewise.ai/threats/cve-2026-20023-cisco-secure-firewall-asa-and-ftd-ospf-memory-corruption-denial"},{"cve":"CVE-2026-20106","cvss":5.3,"epss":0.0032,"slug":"cve-2026-20106-cisco-secure-firewall-asa-and-ftd-ssl-vpn-denial-of-service","title":"Cisco Secure Firewall ASA and FTD SSL VPN denial of service","severity":"medium","exploited":false,"published_at":"2026-03-04T18:16:26.67+00:00","url":"https://junglewise.ai/threats/cve-2026-20106-cisco-secure-firewall-asa-and-ftd-ssl-vpn-denial-of-service"},{"cve":"CVE-2026-20105","cvss":7.7,"epss":0.0032,"slug":"cve-2026-20105-cisco-secure-firewall-asa-and-ftd-remote-access-ssl-vpn-denial-of","title":"Cisco Secure Firewall ASA and FTD Remote Access SSL VPN denial of service","severity":"high","exploited":false,"published_at":"2026-03-04T18:16:26.2+00:00","url":"https://junglewise.ai/threats/cve-2026-20105-cisco-secure-firewall-asa-and-ftd-remote-access-ssl-vpn-denial-of"},{"cve":"CVE-2026-20103","cvss":8.6,"epss":0.0035,"slug":"cve-2026-20103-cisco-secure-firewall-asa-and-ftd-remote-access-ssl-vpn-denial-of","title":"Cisco Secure Firewall ASA and FTD Remote Access SSL VPN denial of service","severity":"high","exploited":false,"published_at":"2026-03-04T18:16:25.84+00:00","url":"https://junglewise.ai/threats/cve-2026-20103-cisco-secure-firewall-asa-and-ftd-remote-access-ssl-vpn-denial-of"},{"cve":"CVE-2026-20049","cvss":7.7,"epss":0.0029,"slug":"cve-2026-20049-cisco-secure-firewall-ipsec-gcm-buffer-overflow-denial-of-service","title":"Cisco Secure Firewall IPsec GCM buffer overflow denial of service","severity":"high","exploited":false,"published_at":"2026-03-04T18:16:17.863+00:00","url":"https://junglewise.ai/threats/cve-2026-20049-cisco-secure-firewall-ipsec-gcm-buffer-overflow-denial-of-service"},{"cve":"CVE-2026-20008","cvss":6,"epss":0.0013,"slug":"cve-2026-20008-cisco-secure-firewall-asa-and-ftd-lua-code-injection-in-cli","title":"Cisco Secure Firewall ASA and FTD Lua code injection in CLI commands","severity":"medium","exploited":false,"published_at":"2026-03-04T18:16:14.383+00:00","url":"https://junglewise.ai/threats/cve-2026-20008-cisco-secure-firewall-asa-and-ftd-lua-code-injection-in-cli"}],"weekly":[{"week":"2026-06-29","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-06","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-13","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-20","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-27","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-03","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-10","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-17","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-24","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-31","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-07","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-14","critical":0,"exploited":0,"vulnerabilities":2},{"week":"2026-09-21","critical":0,"exploited":0,"vulnerabilities":0}],"related":[{"name":"Cisco IOS","slug":"ios","vulnerabilities":69,"url":"https://junglewise.ai/threats/technologies/ios"},{"name":"Cisco IOS XE","slug":"ios-xe","vulnerabilities":53,"url":"https://junglewise.ai/threats/technologies/ios-xe"},{"name":"Cisco Identity Services Engine","slug":"identity-services-engine","vulnerabilities":51,"url":"https://junglewise.ai/threats/technologies/identity-services-engine"},{"name":"Cisco Firepower Threat Defense Software","slug":"firepower-threat-defense-software","vulnerabilities":32,"url":"https://junglewise.ai/threats/technologies/firepower-threat-defense-software"},{"name":"Cisco IOS XR","slug":"ios-xr","vulnerabilities":30,"url":"https://junglewise.ai/threats/technologies/ios-xr"},{"name":"Cisco IOS XE Software","slug":"ios-xe-software","vulnerabilities":27,"url":"https://junglewise.ai/threats/technologies/ios-xe-software"},{"name":"Cisco Firepower Threat Defense","slug":"firepower-threat-defense","vulnerabilities":22,"url":"https://junglewise.ai/threats/technologies/firepower-threat-defense"},{"name":"Cisco Adaptive Security Appliance Software","slug":"secure-firewall-asa-software","vulnerabilities":22,"url":"https://junglewise.ai/threats/technologies/secure-firewall-asa-software"},{"name":"Cisco Ios Software","slug":"ios-software","vulnerabilities":19,"url":"https://junglewise.ai/threats/technologies/ios-software"},{"name":"Cisco ISE Passive Identity Connector","slug":"ise-passive-identity-connector","vulnerabilities":19,"url":"https://junglewise.ai/threats/technologies/ise-passive-identity-connector"},{"name":"Cisco Secure Firewall Management Center","slug":"secure-firewall-management-center","vulnerabilities":16,"url":"https://junglewise.ai/threats/technologies/secure-firewall-management-center"},{"name":"Cisco Catalyst SD-WAN Manager","slug":"catalyst-sd-wan-manager","vulnerabilities":12,"url":"https://junglewise.ai/threats/technologies/catalyst-sd-wan-manager"}],"technology":{"hub":true,"name":"Cisco Secure Firewall Adaptive Security Appliance (ASA) Software","slug":"secure-firewall-adaptive-security-appliance-asa-software","vendor":{"name":"Cisco","slug":"cisco","url":"https://junglewise.ai/threats/vendors/cisco"},"aliases":[],"category":"appliance","url":"https://junglewise.ai/threats/technologies/secure-firewall-adaptive-security-appliance-asa-software"},"most_severe":[{"cve":"CVE-2026-20154","cvss":8.6,"epss":0.004,"slug":"cve-2026-20154-cisco-secure-firewall-asa-ftd-denial-of-service-in-syslog-rate","title":"Cisco Secure Firewall ASA/FTD denial of service in syslog rate limiting","severity":"high","exploited":false,"published_at":"2026-09-16T21:17:07.723+00:00","url":"https://junglewise.ai/threats/cve-2026-20154-cisco-secure-firewall-asa-ftd-denial-of-service-in-syslog-rate"},{"cve":"CVE-2026-20103","cvss":8.6,"epss":0.0035,"slug":"cve-2026-20103-cisco-secure-firewall-asa-and-ftd-remote-access-ssl-vpn-denial-of","title":"Cisco Secure Firewall ASA and FTD Remote Access SSL VPN denial of service","severity":"high","exploited":false,"published_at":"2026-03-04T18:16:25.84+00:00","url":"https://junglewise.ai/threats/cve-2026-20103-cisco-secure-firewall-asa-and-ftd-remote-access-ssl-vpn-denial-of"},{"cve":"CVE-2026-20105","cvss":7.7,"epss":0.0032,"slug":"cve-2026-20105-cisco-secure-firewall-asa-and-ftd-remote-access-ssl-vpn-denial-of","title":"Cisco Secure Firewall ASA and FTD Remote Access SSL VPN denial of service","severity":"high","exploited":false,"published_at":"2026-03-04T18:16:26.2+00:00","url":"https://junglewise.ai/threats/cve-2026-20105-cisco-secure-firewall-asa-and-ftd-remote-access-ssl-vpn-denial-of"},{"cve":"CVE-2026-20049","cvss":7.7,"epss":0.0029,"slug":"cve-2026-20049-cisco-secure-firewall-ipsec-gcm-buffer-overflow-denial-of-service","title":"Cisco Secure Firewall IPsec GCM buffer overflow denial of service","severity":"high","exploited":false,"published_at":"2026-03-04T18:16:17.863+00:00","url":"https://junglewise.ai/threats/cve-2026-20049-cisco-secure-firewall-ipsec-gcm-buffer-overflow-denial-of-service"},{"cve":"CVE-2026-20248","cvss":6.8,"epss":0.0034,"slug":"cve-2026-20248-cisco-secure-firewall-asa-ftd-dns-over-tcp-denial-of-service","title":"Cisco Secure Firewall ASA/FTD DNS over TCP denial of service","severity":"medium","exploited":false,"published_at":"2026-09-16T21:17:08.32+00:00","url":"https://junglewise.ai/threats/cve-2026-20248-cisco-secure-firewall-asa-ftd-dns-over-tcp-denial-of-service"},{"cve":"CVE-2026-20023","cvss":6.1,"epss":0.0015,"slug":"cve-2026-20023-cisco-secure-firewall-asa-and-ftd-ospf-memory-corruption-denial","title":"Cisco Secure Firewall ASA and FTD OSPF memory corruption denial of service","severity":"medium","exploited":false,"published_at":"2026-03-04T19:16:14.627+00:00","url":"https://junglewise.ai/threats/cve-2026-20023-cisco-secure-firewall-asa-and-ftd-ospf-memory-corruption-denial"},{"cve":"CVE-2026-20008","cvss":6,"epss":0.0013,"slug":"cve-2026-20008-cisco-secure-firewall-asa-and-ftd-lua-code-injection-in-cli","title":"Cisco Secure Firewall ASA and FTD Lua code injection in CLI commands","severity":"medium","exploited":false,"published_at":"2026-03-04T18:16:14.383+00:00","url":"https://junglewise.ai/threats/cve-2026-20008-cisco-secure-firewall-asa-and-ftd-lua-code-injection-in-cli"},{"cve":"CVE-2026-20106","cvss":5.3,"epss":0.0032,"slug":"cve-2026-20106-cisco-secure-firewall-asa-and-ftd-ssl-vpn-denial-of-service","title":"Cisco Secure Firewall ASA and FTD SSL VPN denial of service","severity":"medium","exploited":false,"published_at":"2026-03-04T18:16:26.67+00:00","url":"https://junglewise.ai/threats/cve-2026-20106-cisco-secure-firewall-asa-and-ftd-ssl-vpn-denial-of-service"}],"generated_at":"2026-09-26T09:11:00.170868+00:00"}