{"schema_version":"public-product-v1.1","generated_at":"2026-07-21T10:02:55Z","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-20180620-fxnxos-fab-ace","slug":"cisco-sa-20180620-fxnxos-fab-ace","vendor":"Cisco","title":"Cisco FXOS and NX-OS Software Cisco Fabric Services Arbitrary Code Execution Vulnerability","summary":"A vulnerability in the Cisco Fabric Services component of Cisco FXOS Software and Cisco NX-OS Software could allow an unauthenticated, remote attacker to execute arbitrary code or cause a denial of service (DoS) condition. The vulnerability exists because the affected software insufficiently validates header values in Cisco Fabric Services packets. An attacker could exploit this vulnerability by sending a crafted Cisco Fabric Services packet to an affected device. A successful exploit could allow the attacker to cause a buffer overflow that could allow the attacker to execute arbitrary code or cause a DoS condition. Cisco has released software updates that address this vulnerability. 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-20180620-fxnxos-fab-ace This advisory is part of the June 2018 Cisco FXOS and NX-OS Software Security Advisory Collection, which includes 24 Cisco Security Advisories that describe 24 vulnerabilities. For a complete list of the advisories and links to them, see Cisco Event Response: June 2018 Cisco FXOS and NX-OS Software Security Advisory Collection.","severity":"Critical","published_at":"2018-06-20T16:00:00Z","updated_at":"2018-07-05T21:11:00Z","source_url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180620-fxnxos-fab-ace","csaf_url":"https://sec.cloudapps.cisco.com/security/center/contentjson/CiscoSecurityAdvisory/cisco-sa-20180620-fxnxos-fab-ace/csaf/cisco-sa-20180620-fxnxos-fab-ace.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":4,"public_evidence_count":4,"kev_count":0,"highest_epss":0.05659},"cves":[{"id":"CVE-2018-0308","kev":false,"epss":{"score":0.05659,"percentile":0.92114,"score_date":"2026-07-20","updated_at":"2026-07-21T05:16:33Z"}}],"public_evidence":[{"product":{"name":"Cisco Firepower Extensible Operating System (FXOS)","slug":"cisco-firepower-extensible-operating-system-fxos","vendor":"Cisco"},"cve":{"id":"CVE-2018-0308"},"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":"2026-07-20T00:23:55Z","csaf_status":"known_affected","csaf_product_status":"known_affected","csaf_product_status_path":"vulnerabilities[].product_status.known_affected","raw_product_name":"2.0.1.68","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":0.05659,"score_date":"2026-07-20","updated_at":"2026-07-21T05:16:33Z"},"published_at":"2018-06-20T16:00:00Z","updated_at":"2018-07-05T21:11:00Z","advisory_updated_at":"2018-07-05T21:11:00Z","source_url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180620-fxnxos-fab-ace","remediation":{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180620-fxnxos-fab-ace"},"row_display_order":1},{"product":{"name":"Cisco NX-OS Software","slug":"cisco-nx-os-software","vendor":"Cisco"},"cve":{"id":"CVE-2018-0308"},"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":"2026-07-20T00:23:55Z","csaf_status":"known_affected","csaf_product_status":"known_affected","csaf_product_status_path":"vulnerabilities[].product_status.known_affected","raw_product_name":"6.0(2)N1(1); 6.0(2)N1(2); 6.0(2)N1(2a); 6.0(2)N2(1); 6.0(2)N2(1b); 6.0(2)N2(2); 6.0(2)N2(3); 6.0(2)N2(4); 6.0(2)N2(5); 6.0(2)N2(5a); 6.0(2)N2(6); 6.0(2)N2(7); 6.1(2)I1(1); 6.1(2)I3(3.78); 6.1(2)I3(3b); 7.0(2)I2(2c); 7.0(2)N1(1a); 7.0(6)N1(1c); 7.1(0)N1(2); 7.1(3)N1(1b); 7.1(4)N1(1e); 7.3(1)D1(1B); 7.3(1)N1(0.1)","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":0.05659,"score_date":"2026-07-20","updated_at":"2026-07-21T05:16:33Z"},"published_at":"2018-06-20T16:00:00Z","updated_at":"2018-07-05T21:11:00Z","advisory_updated_at":"2018-07-05T21:11:00Z","source_url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180620-fxnxos-fab-ace","remediation":{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180620-fxnxos-fab-ace"},"row_display_order":2},{"product":{"name":"Cisco Adaptive Security Appliance (ASA) Software","slug":"cisco-adaptive-security-appliance-asa-software","vendor":"Cisco"},"cve":{"id":"CVE-2018-0308"},"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":"2026-07-20T00:23:55Z","csaf_status":"known_affected","csaf_product_status":"known_affected","csaf_product_status_path":"vulnerabilities[].product_status.known_affected","raw_product_name":"7.0(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":0.05659,"score_date":"2026-07-20","updated_at":"2026-07-21T05:16:33Z"},"published_at":"2018-06-20T16:00:00Z","updated_at":"2018-07-05T21:11:00Z","advisory_updated_at":"2018-07-05T21:11:00Z","source_url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180620-fxnxos-fab-ace","remediation":{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180620-fxnxos-fab-ace"},"row_display_order":3},{"product":{"name":"Cisco Unified Computing System (Managed)","slug":"cisco-unified-computing-system-managed","vendor":"Cisco"},"cve":{"id":"CVE-2018-0308"},"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":"2026-07-20T00:23:55Z","csaf_status":"known_affected","csaf_product_status":"known_affected","csaf_product_status_path":"vulnerabilities[].product_status.known_affected","raw_product_name":"Cisco Unified Computing System (Managed)","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":0.05659,"score_date":"2026-07-20","updated_at":"2026-07-21T05:16:33Z"},"published_at":"2018-06-20T16:00:00Z","updated_at":"2018-07-05T21:11:00Z","advisory_updated_at":"2018-07-05T21:11:00Z","source_url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180620-fxnxos-fab-ace","remediation":{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180620-fxnxos-fab-ace"},"row_display_order":4}]}