{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-20091","assignerOrgId":"d1c1063e-7a18-46af-9102-31f8928bc633","state":"PUBLISHED","assignerShortName":"cisco","dateReserved":"2025-10-08T11:59:15.368Z","datePublished":"2026-02-25T16:24:44.412Z","dateUpdated":"2026-02-25T19:05:48.712Z"},"containers":{"cna":{"title":"Cisco UCS Manager and FXOS Software Stored Cross-Site Scripting Vulnerability","metrics":[{"format":"cvssV3_1","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N","baseScore":4.8,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"HIGH","userInteraction":"REQUIRED","scope":"CHANGED","confidentialityImpact":"LOW","integrityImpact":"LOW","availabilityImpact":"NONE"}}],"descriptions":[{"lang":"en","value":"A vulnerability in the web-based management interface of Cisco FXOS Software and Cisco UCS Manager Software could allow an authenticated, remote attacker to conduct a stored cross-site scripting (XSS) attack against a user of the interface.\r\n\r\nThis vulnerability is due to insufficient validation of user-supplied input by the web-based management interface of an affected system. An attacker could exploit this vulnerability by injecting malicious data into specific pages of the interface. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected interface or access sensitive, browser-based information. To exploit this vulnerability, the attacker must have valid credentials for a user account with the role of Administrator or AAA Administrator. "}],"references":[{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ucsfxosxss-7skVE8Zv","name":"cisco-sa-ucsfxosxss-7skVE8Zv"}],"exploits":[{"lang":"en","value":"The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerabilities that are described in this advisory."}],"source":{"advisory":"cisco-sa-ucsfxosxss-7skVE8Zv","discovery":"INTERNAL","defects":["CSCwm57437"]},"problemTypes":[{"descriptions":[{"lang":"en","description":"Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","type":"cwe","cweId":"CWE-79"}]}],"affected":[{"vendor":"Cisco","product":"Cisco Firepower Extensible Operating System (FXOS)","versions":[{"version":"2.14.1.131","status":"affected"},{"version":"2.14.1.143","status":"affected"},{"version":"2.14.1.163","status":"affected"},{"version":"2.14.1.167","status":"affected"},{"version":"2.16.0.128","status":"affected"}],"defaultStatus":"unknown"},{"vendor":"Cisco","product":"Cisco Secure Firewall Adaptive Security Appliance (ASA) Software","versions":[{"version":"9.12.2","status":"affected"},{"version":"9.12.1","status":"affected"},{"version":"9.12.3","status":"affected"},{"version":"9.12.4","status":"affected"},{"version":"9.12.3.2","status":"affected"},{"version":"9.12.3.12","status":"affected"},{"version":"9.12.2.5","status":"affected"},{"version":"9.12.1.2","status":"affected"},{"version":"9.12.2.1","status":"affected"},{"version":"9.12.3.7","status":"affected"},{"version":"9.12.2.9","status":"affected"},{"version":"9.12.3.9","status":"affected"},{"version":"9.12.1.3","status":"affected"},{"version":"9.12.4.2","status":"affected"},{"version":"9.12.4.4","status":"affected"},{"version":"9.12.4.7","status":"affected"},{"version":"9.12.4.8","status":"affected"},{"version":"9.12.4.10","status":"affected"},{"version":"9.12.4.13","status":"affected"},{"version":"9.12.4.18","status":"affected"},{"version":"9.12.4.24","status":"affected"},{"version":"9.16.1","status":"affected"},{"version":"9.12.4.26","status":"affected"},{"version":"9.16.1.28","status":"affected"},{"version":"9.12.4.29","status":"affected"},{"version":"9.16.2","status":"affected"},{"version":"9.12.4.30","status":"affected"},{"version":"9.16.2.3","status":"affected"},{"version":"9.12.4.35","status":"affected"},{"version":"9.16.2.7","status":"affected"},{"version":"9.12.4.37","status":"affected"},{"version":"9.17.1","status":"affected"},{"version":"9.16.2.11","status":"affected"},{"version":"9.16.2.13","status":"affected"},{"version":"9.12.4.39","status":"affected"},{"version":"9.12.4.38","status":"affected"},{"version":"9.16.2.14","status":"affected"},{"version":"9.17.1.7","status":"affected"},{"version":"9.12.4.40","status":"affected"},{"version":"9.16.3.3","status":"affected"},{"version":"9.16.3","status":"affected"},{"version":"9.17.1.9","status":"affected"},{"version":"9.16.3.14","status":"affected"},{"version":"9.12.4.41","status":"affected"},{"version":"9.17.1.10","status":"affected"},{"version":"9.18.1","status":"affected"},{"version":"9.12.4.47","status":"affected"},{"version":"9.16.3.15","status":"affected"},{"version":"9.18.1.3","status":"affected"},{"version":"9.17.1.11","status":"affected"},{"version":"9.12.4.48","status":"affected"},{"version":"9.18.2","status":"affected"},{"version":"9.16.3.19","status":"affected"},{"version":"9.17.1.13","status":"affected"},{"version":"9.12.4.50","status":"affected"},{"version":"9.17.1.15","status":"affected"},{"version":"9.12.4.52","status":"affected"},{"version":"9.16.3.23","status":"affected"},{"version":"9.18.2.5","status":"affected"},{"version":"9.16.4","status":"affected"},{"version":"9.12.4.54","status":"affected"},{"version":"9.17.1.20","status":"affected"},{"version":"9.18.2.7","status":"affected"},{"version":"9.19.1","status":"affected"},{"version":"9.16.4.9","status":"affected"},{"version":"9.12.4.55","status":"affected"},{"version":"9.18.2.8","status":"affected"},{"version":"9.16.4.14","status":"affected"},{"version":"9.18.3","status":"affected"},{"version":"9.19.1.5","status":"affected"},{"version":"9.12.4.56","status":"affected"},{"version":"9.17.1.30","status":"affected"},{"version":"9.19.1.9","status":"affected"},{"version":"9.18.3.39","status":"affected"},{"version":"9.16.4.19","status":"affected"},{"version":"9.12.4.58","status":"affected"},{"version":"9.19.1.12","status":"affected"},{"version":"9.18.3.46","status":"affected"},{"version":"9.16.4.27","status":"affected"},{"version":"9.19.1.18","status":"affected"},{"version":"9.18.3.53","status":"affected"},{"version":"9.18.3.55","status":"affected"},{"version":"9.16.4.38","status":"affected"},{"version":"9.17.1.33","status":"affected"},{"version":"9.12.4.62","status":"affected"},{"version":"9.16.4.39","status":"affected"},{"version":"9.18.3.56","status":"affected"},{"version":"9.16.4.42","status":"affected"},{"version":"9.19.1.22","status":"affected"},{"version":"9.18.4","status":"affected"},{"version":"9.18.4.5","status":"affected"},{"version":"9.19.1.24","status":"affected"},{"version":"9.16.4.48","status":"affected"},{"version":"9.18.4.8","status":"affected"},{"version":"9.20.2","status":"affected"},{"version":"9.19.1.27","status":"affected"},{"version":"9.12.4.65","status":"affected"},{"version":"9.16.4.55","status":"affected"},{"version":"9.18.4.22","status":"affected"},{"version":"9.20.2.10","status":"affected"},{"version":"9.16.4.57","status":"affected"},{"version":"9.19.1.28","status":"affected"},{"version":"9.17.1.39","status":"affected"},{"version":"9.12.4.67","status":"affected"},{"version":"9.18.4.24","status":"affected"},{"version":"9.20.2.21","status":"affected"},{"version":"9.16.4.61","status":"affected"},{"version":"9.19.1.31","status":"affected"},{"version":"9.18.4.29","status":"affected"},{"version":"9.20.2.22","status":"affected"},{"version":"9.16.4.62","status":"affected"},{"version":"9.18.4.34","status":"affected"},{"version":"9.20.3","status":"affected"},{"version":"9.16.4.67","status":"affected"},{"version":"9.18.4.40","status":"aff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