{"schema_version":"public-product-v1.1","generated_at":"2026-07-21T10:39:13Z","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-20190816-ftd-srb","slug":"cisco-sa-20190816-ftd-srb","vendor":"Cisco","title":"Cisco Firepower Threat Defense Software Stream Reassembly Bypass Vulnerability","summary":"A vulnerability in the stream reassembly component of Cisco Firepower Threat Defense Software, Cisco FirePOWER Services Software for ASA, and Cisco Firepower Management Center Software could allow an unauthenticated, remote attacker to bypass filtering protections. The vulnerability is due to improper reassembly of traffic streams. An attacker could exploit this vulnerability by sending crafted streams through an affected device. An exploit could allow the attacker to bypass filtering and deliver malicious requests to protected systems that would otherwise be blocked. There are no workarounds that address this vulnerability. This advisory is available at the following link: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190816-ftd-srb","severity":"Medium","published_at":"2019-08-16T16:00:00Z","updated_at":"2019-08-16T16:00:00Z","source_url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190816-ftd-srb","csaf_url":"https://sec.cloudapps.cisco.com/security/center/contentjson/CiscoSecurityAdvisory/cisco-sa-20190816-ftd-srb/csaf/cisco-sa-20190816-ftd-srb.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":3,"public_evidence_count":3,"kev_count":0,"highest_epss":0.09382},"cves":[{"id":"CVE-2019-1978","kev":false,"epss":{"score":0.09382,"percentile":0.94859,"score_date":"2026-07-20","updated_at":"2026-07-21T05:16:33Z"}}],"public_evidence":[{"product":{"name":"Cisco Firepower Management Center","slug":"cisco-firepower-management-center","vendor":"Cisco"},"cve":{"id":"CVE-2019-1978"},"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":"2026-07-20T00:01:58Z","csaf_status":"known_affected","csaf_product_status":"known_affected","csaf_product_status_path":"vulnerabilities[].product_status.known_affected","raw_product_name":"5.3.0; 5.4.0; 6.0.0; 6.0.1; 6.0.1.1; 6.0.1.2; 6.0.1.3; 6.0.1.4; 6.1.0; 6.1.0.1; 6.1.0.2; 6.1.0.3; 6.1.0.4; 6.1.0.5; 6.1.0.6; 6.1.0.7; 6.2.0; 6.2.0.1; 6.2.0.2; 6.2.0.3; 6.2.0.4; 6.2.0.5; 6.2.0.6; 6.2.0.7; 6.2.2.1; 6.2.2.2; 6.2.2.3; 6.2.2.4; 6.2.2.5; 6.2.3.1; 6.2.3.10; 6.2.3.11; 6.2.3.12; 6.2.3.2; 6.2.3.3; 6.2.3.4; 6.2.3.5; 6.2.3.6; 6.2.3.7; 6.2.3.8; 6.2.3.9; 6.3.0; 6.3.0.1; 6.3.0.2; 6.3.0.3; 6.4.0; 6.4.0.1; 6.4.0.3; 6.5.0","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":0.09382,"score_date":"2026-07-20","updated_at":"2026-07-21T05:16:33Z"},"published_at":"2019-08-16T16:00:00Z","updated_at":"2019-08-16T16:00:00Z","advisory_updated_at":"2019-08-16T16:00:00Z","source_url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190816-ftd-srb","remediation":{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190816-ftd-srb"},"row_display_order":1},{"product":{"name":"Cisco FirePOWER Services Software for ASA","slug":"cisco-firepower-services-software-for-asa","vendor":"Cisco"},"cve":{"id":"CVE-2019-1978"},"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":"2026-07-20T00:01:58Z","csaf_status":"known_affected","csaf_product_status":"known_affected","csaf_product_status_path":"vulnerabilities[].product_status.known_affected","raw_product_name":"Cisco FirePOWER Services Software for ASA","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":0.09382,"score_date":"2026-07-20","updated_at":"2026-07-21T05:16:33Z"},"published_at":"2019-08-16T16:00:00Z","updated_at":"2019-08-16T16:00:00Z","advisory_updated_at":"2019-08-16T16:00:00Z","source_url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190816-ftd-srb","remediation":{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190816-ftd-srb"},"row_display_order":2},{"product":{"name":"Cisco Adaptive Security Appliance (ASA) Software","slug":"cisco-adaptive-security-appliance-asa-software","vendor":"Cisco"},"cve":{"id":"CVE-2019-1978"},"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":"2026-07-20T00:01:58Z","csaf_status":"known_affected","csaf_product_status":"known_affected","csaf_product_status_path":"vulnerabilities[].product_status.known_affected","raw_product_name":"6.2.1; 6.2.2; 6.2.3","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":0.09382,"score_date":"2026-07-20","updated_at":"2026-07-21T05:16:33Z"},"published_at":"2019-08-16T16:00:00Z","updated_at":"2019-08-16T16:00:00Z","advisory_updated_at":"2019-08-16T16:00:00Z","source_url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190816-ftd-srb","remediation":{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190816-ftd-srb"},"row_display_order":3}]}