{"schema_version":"public-product-v1.1","generated_at":"2026-07-21T09:57:44Z","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-fmc-xss-openredir-TVPMWJyg","slug":"cisco-sa-fmc-xss-openredir-tvpmwjyg","vendor":"Cisco","title":"Cisco Firepower Management Center Software Cross-Site Scripting and Open Redirect Vulnerabilities","summary":"Multiple vulnerabilities in the web-based management interface of Cisco Firepower Management Center (FMC) Software could allow an attacker to execute a cross-site scripting (XSS) attack or an open redirect attack. For more information about these vulnerabilities, see the Details section of this advisory. Cisco has released software updates that address these vulnerabilities. There are no workarounds that address these vulnerabilities. This advisory is available at the following link:https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-xss-openredir-TVPMWJyg This advisory is part of the October 2021 release of the Cisco ASA, FTD, and FMC Security Advisory Bundled publication. For a complete list of the advisories and links to them, see Cisco Event Response: October 2021 Cisco ASA, FMC, and FTD Software Security Advisory Bundled Publication.","severity":"Medium","published_at":"2021-10-27T16:00:00Z","updated_at":"2021-10-27T16:00:00Z","source_url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-xss-openredir-TVPMWJyg","csaf_url":"https://sec.cloudapps.cisco.com/security/center/contentjson/CiscoSecurityAdvisory/cisco-sa-fmc-xss-openredir-TVPMWJyg/csaf/cisco-sa-fmc-xss-openredir-TVPMWJyg.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":2,"visible_product_count":1,"public_evidence_count":2,"kev_count":0,"highest_epss":0.00592},"cves":[{"id":"CVE-2021-34764","kev":false,"epss":{"score":0.00592,"percentile":0.44437,"score_date":"2026-07-20","updated_at":"2026-07-21T05:16:34Z"}},{"id":"CVE-2021-34763","kev":false,"epss":{"score":0.00461,"percentile":0.37197,"score_date":"2026-07-20","updated_at":"2026-07-21T05:16:34Z"}}],"public_evidence":[{"product":{"name":"Cisco Secure Firewall Management Center (FMC) Appliances","slug":"cisco-secure-firewall-management-center-fmc-appliances","vendor":"Cisco"},"cve":{"id":"CVE-2021-34764"},"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":"2026-07-20T04:47:36Z","csaf_status":"known_affected","csaf_product_status":"known_affected","csaf_product_status_path":"vulnerabilities[].product_status.known_affected","raw_product_name":"Cisco Secure Firewall Management Center (FMC) 6.2.3 when installed on Cisco Secure Firewall Management Center (FMC) Appliances; Cisco Secure Firewall Management Center (FMC) 6.2.3.1 when installed on Cisco Secure Firewall Management Center (FMC) Appliances; Cisco Secure Firewall Management Center (FMC) 6.2.3.10 when installed on Cisco Secure Firewall Management Center (FMC) Appliances; Cisco Secure Firewall Management Center (FMC) 6.2.3.11 when installed on Cisco Secure Firewall Management Center (FMC) Appliances; Cisco Secure Firewall Management Center (FMC) 6.2.3.12 when installed on Cisco Secure Firewall Management Center (FMC) Appliances; Cisco Secure Firewall Management Center (FMC) 6.2.3.13 when installed on Cisco Secure Firewall Management Center (FMC) Appliances; Cisco Secure Firewall Management Center (FMC) 6.2.3.14 when installed on Cisco Secure Firewall Management Center (FMC) Appliances; Cisco Secure Firewall Management Center (FMC) 6.2.3.15 when installed on Cisco Secure Firewall Management Center (FMC) Appliances; Cisco Secure Firewall Management Center (FMC) 6.2.3.16 when installed on Cisco Secure Firewall Management Center (FMC) Appliances; Cisco Secure Firewall Management Center (FMC) 6.2.3.17 when installed on Cisco Secure Firewall Management Center (FMC) Appliances; Cisco Secure Firewall Management Center (FMC) 6.2.3.2 when installed on Cisco Secure Firewall Management Center (FMC) Appliances; Cisco Secure Firewall Management Center (FMC) 6.2.3.3 when installed on Cisco Secure Firewall Management Center (FMC) Appliances; Cisco Secure Firewall Management Center (FMC) 6.2.3.4 when installed on Cisco Secure Firewall Management Center (FMC) Appliances; Cisco Secure Firewall Management Center (FMC) 6.2.3.5 when installed on Cisco Secure Firewall Management Center (FMC) Appliances; Cisco Secure Firewall Management Center (FMC) 6.2.3.6 when installed on Cisco Secure Firewall Management Center (FMC) Appliances; Cisco Secure Firewall Management Center (FMC) 6.2.3.7 when installed on Cisco Secure Firewall Management Center (FMC) Appliances; Cisco Secure Firewall Management Center (FMC) 6.2.3.8 when installed on Cisco Secure Firewall Management Center (FMC) Appliances; Cisco Secure Firewall Management Center (FMC) 6.2.3.9 when installed on Cisco Secure Firewall Management Center (FMC) Appliances; Cisco Secure Firewall Management Center (FMC) 6.4.0 when installed on Cisco Secure Firewall Management Center (FMC) Appliances; Cisco Secure Firewall Management Center (FMC) 6.4.0.1 when installed on Cisco Secure Firewall Management Center (FMC) Appliances; Cisco Secure Firewall Management Center (FMC) 6.4.0.10 when installed on Cisco Secure Firewall Management Center (FMC) Appliances; Cisco Secure Firewall Management Center (FMC) 6.4.0.11 when installed on Cisco Secure Firewall Management Center (FMC) Appliances; Cisco Secure Firewall Management Center (FMC) 6.4.0.12 when installed on Cisco Secure Firewall Management Center (FMC) Appliances; Cisco Secure Firewall Management Center (FMC) 6.4.0.2 when installed on Cisco Secure Firewall Management Center (FMC) Appliances; Cisco Secure Firewall Management Center (FMC) 6.4.0.3 when installed on Cisco Secure Firewall Management Center (FMC) Appliances; Cisco Secure Firewall Management Center (FMC) 6.4.0.4 when installed on Cisco Secure Firewall Management Center (FMC) Appliances; Cisco Secure Firewall Management Center (FMC) 6.4.0.5 when installed on Cisco Secure Firewall Management Center (FMC) Appliances; Cisco Secure Firewall Management Center (FMC) 6.4.0.6 when installed on Cisco Secure Firewall Management Center (FMC) Appliances; Cisco Secure Firewall Management Center (FMC) 6.4.0.7 when installed on Cisco Secure Firewall Management Center (FMC) Appliances; Cisco Secure Firewall Management Center (FMC) 6.4.0.8 when installed on Cisco Secure Firewall Management Center (FMC) Appliances; Cisco Secure Firewall Management Center (FMC) 6.4.0.9 when installed on Cisco Secure Firewall Management Center (FMC) Appliances; Cisco Secure Firewall Management Center (FMC) 6.6.0 when installed on Cisco Secure Firewall Management Center (FMC) Appliances; Cisco Secure Firewall Management Center (FMC) 6.6.0.1 when installed on Cisco Secure Firewall Management Center (FMC) Appliances; Cisco Secure Firewall Management Center (FMC) 6.6.1 when installed on Cisco Secure Firewall Management Center (FMC) Appliances; Cisco Secure Firewall Management Center (FMC) 6.6.3 when installed on Cisco Secure Firewall Management Center (FMC) Appliances; Cisco Secure Firewall Management Center (FMC) 6.6.4 when installed on Cisco Secure Firewall Management Center (FMC) Appliances; Cisco Secure Firewall Management Center (FMC) 7.0.0 when installed on Cisco Secure Firewall Management Center (FMC) Appliances; Cisco Secure Firewall Management Center (FMC) 7.0.0.1 when installed on Cisco Secure Firewall Management Center (FMC) Appliances","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":0.00592,"score_date":"2026-07-20","updated_at":"2026-07-21T05:16:34Z"},"published_at":"2021-10-27T16:00:00Z","updated_at":"2021-10-27T16:00:00Z","advisory_updated_at":"2021-10-27T16:00:00Z","source_url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-xss-openredir-TVPMWJyg","remediation":{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-xss-openredir-TVPMWJyg"},"row_display_order":1},{"product":{"name":"Cisco Secure Firewall Management Center (FMC) Appliances","slug":"cisco-secure-firewall-management-center-fmc-appliances","vendor":"Cisco"},"cve":{"id":"CVE-2021-34763"},"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":"2026-07-20T04:47:36Z","csaf_status":"known_affected","csaf_product_status":"known_affected","csaf_product_status_path":"vulnerabilities[].product_status.known_affected","raw_product_name":"Cisco Secure Firewall Management Center (FMC) 6.2.3 when installed on Cisco Secure Firewall Management Center (FMC) Appliances; Cisco Secure Firewall Management Center (FMC) 6.2.3.1 when installed on Cisco Secure Firewall Management Center (FMC) Appliances; Cisco Secure Firewall Management Center (FMC) 6.2.3.10 when installed on Cisco Secure Firewall Management Center (FMC) Appliances; Cisco Secure Firewall Management Center (FMC) 6.2.3.11 when installed on Cisco Secure Firewall Management Center (FMC) Appliances; Cisco Secure Firewall Management Center (FMC) 6.2.3.12 when installed on Cisco Secure Firewall Management Center (FMC) Appliances; Cisco Secure Firewall Management Center (FMC) 6.2.3.13 when installed on Cisco Secure Firewall Management Center (FMC) Appliances; Cisco Secure Firewall Management Center (FMC) 6.2.3.14 when installed on Cisco Secure Firewall Management Center (FMC) Appliances; Cisco Secure Firewall Management Center (FMC) 6.2.3.15 when installed on Cisco Secure Firewall Management Center (FMC) Appliances; Cisco Secure Firewall Management Center (FMC) 6.2.3.16 when installed on Cisco Secure Firewall Management Center (FMC) Appliances; Cisco Secure Firewall Management Center (FMC) 6.2.3.17 when installed on Cisco Secure Firewall Management Center (FMC) Appliances; Cisco Secure Firewall Management Center (FMC) 6.2.3.2 when installed on Cisco Secure Firewall Management Center (FMC) Appliances; Cisco Secure Firewall Management Center (FMC) 6.2.3.3 when installed on Cisco Secure Firewall Management Center (FMC) Appliances; Cisco Secure Firewall Management Center (FMC) 6.2.3.4 when installed on Cisco Secure Firewall Management Center (FMC) Appliances; Cisco Secure Firewall Management Center (FMC) 6.2.3.5 when installed on Cisco Secure Firewall Management Center (FMC) Appliances; Cisco Secure Firewall Management Center (FMC) 6.2.3.6 when installed on Cisco Secure Firewall Management Center (FMC) Appliances; Cisco Secure Firewall Management Center (FMC) 6.2.3.7 when installed on Cisco Secure Firewall Management Center (FMC) Appliances; Cisco Secure Firewall Management Center (FMC) 6.2.3.8 when installed on Cisco Secure Firewall Management Center (FMC) Appliances; Cisco Secure Firewall Management Center (FMC) 6.2.3.9 when installed on Cisco Secure Firewall Management Center (FMC) Appliances; Cisco Secure Firewall Management Center (FMC) 6.4.0 when installed on Cisco Secure Firewall Management Center (FMC) Appliances; Cisco Secure Firewall Management Center (FMC) 6.4.0.1 when installed on Cisco Secure Firewall Management Center (FMC) Appliances; Cisco Secure Firewall Management Center (FMC) 6.4.0.10 when installed on Cisco Secure Firewall Management Center (FMC) Appliances; Cisco Secure Firewall Management Center (FMC) 6.4.0.11 when installed on Cisco Secure Firewall Management Center (FMC) Appliances; Cisco Secure Firewall Management Center (FMC) 6.4.0.12 when installed on Cisco Secure Firewall Management Center (FMC) Appliances; Cisco Secure Firewall Management Center (FMC) 6.4.0.2 when installed on Cisco Secure Firewall Management Center (FMC) Appliances; Cisco Secure Firewall Management Center (FMC) 6.4.0.3 when installed on Cisco Secure Firewall Management Center (FMC) Appliances; Cisco Secure Firewall Management Center (FMC) 6.4.0.4 when installed on Cisco Secure Firewall Management Center (FMC) Appliances; Cisco Secure Firewall Management Center (FMC) 6.4.0.5 when installed on Cisco Secure Firewall Management Center (FMC) Appliances; Cisco Secure Firewall Management Center (FMC) 6.4.0.6 when installed on Cisco Secure Firewall Management Center (FMC) Appliances; Cisco Secure Firewall Management Center (FMC) 6.4.0.7 when installed on Cisco Secure Firewall Management Center (FMC) Appliances; Cisco Secure Firewall Management Center (FMC) 6.4.0.8 when installed on Cisco Secure Firewall Management Center (FMC) Appliances; Cisco Secure Firewall Management Center (FMC) 6.4.0.9 when installed on Cisco Secure Firewall Management Center (FMC) Appliances; Cisco Secure Firewall Management Center (FMC) 6.6.0 when installed on Cisco Secure Firewall Management Center (FMC) Appliances; Cisco Secure Firewall Management Center (FMC) 6.6.0.1 when installed on Cisco Secure Firewall Management Center (FMC) Appliances; Cisco Secure Firewall Management Center (FMC) 6.6.1 when installed on Cisco Secure Firewall Management Center (FMC) Appliances; Cisco Secure Firewall Management Center (FMC) 6.6.3 when installed on Cisco Secure Firewall Management Center (FMC) Appliances; Cisco Secure Firewall Management Center (FMC) 6.6.4 when installed on Cisco Secure Firewall Management Center (FMC) Appliances; Cisco Secure Firewall Management Center (FMC) 7.0.0 when installed on Cisco Secure Firewall Management Center (FMC) Appliances; Cisco Secure Firewall Management Center (FMC) 7.0.0.1 when installed on Cisco Secure Firewall Management Center (FMC) Appliances","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":0.00461,"score_date":"2026-07-20","updated_at":"2026-07-21T05:16:34Z"},"published_at":"2021-10-27T16:00:00Z","updated_at":"2021-10-27T16:00:00Z","advisory_updated_at":"2021-10-27T16:00:00Z","source_url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-xss-openredir-TVPMWJyg","remediation":{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-xss-openredir-TVPMWJyg"},"row_display_order":2}]}