{"id":"CVE-2021-34764","aliases":["EUVD-2021-21414","GHSA-29vr-6hw6-5v65"],"status":"published","title":"Cisco Firepower Management Center Software Cross-Site Scripting and Open Redirect Vulnerabilities","description":"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.","severity":{"version":"3.1","score":4.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00616,"percentile":0.49824,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-601","CWE-79"],"published":"2021-10-27T18:55:46Z","modified":"2026-08-11T21:31:48Z","products":[{"vendor":"cisco","product":"cisco firepower management center"},{"vendor":"cisco","product":"firepower_management_center_virtual_appliance"},{"vendor":"cisco","product":"secure_firewall_threat_defense"},{"vendor":"cisco","product":"sourcefire_defense_center"}],"references":[{"url":"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-xss-openredir-TVPMWJyg","tags":["vendor-advisory","x_refsource_CISCO","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-34764"},{"url":"https://github.com/advisories/GHSA-29vr-6hw6-5v65"}],"sources":{"cve":[{"id":"CVE-2021-34764","title":"Cisco Firepower Management Center Software Cross-Site Scripting and Open Redirect Vulnerabilities","description":"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.","status":"published","published":"2021-10-27T18:55:46.901Z","modified":"2024-11-07T21:44:08.882Z","cvss":[{"version":"3.1","score":4.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-601"],"updated_at":"2026-11-02T14:33:11.244759Z"}],"euvd":[{"id":"EUVD-2021-21414","description":"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.","status":"published","published":"2021-10-27T18:55:46Z","modified":"2024-11-07T21:44:08Z","cvss":[{"version":"3.1","score":4.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-03T00:05:07.826667Z"}],"ghsa":[{"id":"GHSA-29vr-6hw6-5v65","title":"Multiple vulnerabilities in the web-based management interface of Cisco Firepower Management...","description":"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.","status":"published","published":"2022-05-24T19:18:54Z","modified":"2026-08-11T21:31:48Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-79","CWE-601"],"updated_at":"2026-11-02T15:10:21.509652Z"}],"nvd":[{"id":"CVE-2021-34764","description":"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.","status":"published","published":"2021-10-27T19:15:08.177Z","modified":"2026-08-11T19:37:30.88Z","cvss":[{"version":"3.1","score":4.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"secondary"},{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":5.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-601","CWE-79"],"updated_at":"2026-11-02T14:07:00.549994Z"}]}}