{"id":"CVE-2026-20099","aliases":["EUVD-2026-8671","GHSA-687g-rcf9-r6r3"],"status":"published","title":"Cisco UCS Manager and FXOS Software Command Injection Vulnerability","description":"A vulnerability in the web-based management interface of Cisco FXOS Software and Cisco\u0026nbsp;UCS Manager Software could allow an authenticated, local attacker with administrative privileges to perform command injection attacks on an affected system and elevate privileges to\u0026nbsp;root.\u0026nbsp;\r\n\r\nThis vulnerability is due to insufficient input validation of command arguments supplied by the user. An attacker could exploit this vulnerability by authenticating to a device and submitting crafted input to the affected command. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system of the affected device with root-level privileges.","severity":{"version":"3.1","score":6.7,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00743,"percentile":0.54988,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-78"],"published":"2026-02-25T16:25:38Z","modified":"2026-06-17T10:17:05Z","products":[{"vendor":"cisco","product":"cisco firepower extensible operating system (fxos)"},{"vendor":"cisco","product":"cisco secure firewall adaptive security appliance (asa) software"},{"vendor":"cisco","product":"cisco unified computing system (managed)"}],"references":[{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ucsciv-wGYtC78q"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-20099"},{"url":"https://github.com/advisories/GHSA-687g-rcf9-r6r3"}],"sources":{"cve":[{"id":"CVE-2026-20099","title":"Cisco UCS Manager and FXOS Software Command Injection Vulnerability","description":"A vulnerability in the web-based management interface of Cisco FXOS Software and Cisco\u0026nbsp;UCS Manager Software could allow an authenticated, local attacker with administrative privileges to perform command injection attacks on an affected system and elevate privileges to\u0026nbsp;root.\u0026nbsp;\r\n\r\nThis vulnerability is due to insufficient input validation of command arguments supplied by the user. An attacker could exploit this vulnerability by authenticating to a device and submitting crafted input to the affected command. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system of the affected device with root-level privileges.","status":"published","published":"2026-02-25T16:25:38.517Z","modified":"2026-02-26T14:44:05.716Z","cvss":[{"version":"3.1","score":6.7,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"medium","assessor":"cna"}],"cwes":["CWE-78"],"updated_at":"2026-11-02T13:35:33.380441Z"}],"euvd":[{"id":"EUVD-2026-8671","description":"A vulnerability in the web-based management interface of Cisco FXOS Software and Cisco\u0026nbsp;UCS Manager Software could allow an authenticated, local attacker with administrative privileges to perform command injection attacks on an affected system and elevate privileges to\u0026nbsp;root.\u0026nbsp;\r\n\r\nThis vulnerability is due to insufficient input validation of command arguments supplied by the user. An attacker could exploit this vulnerability by authenticating to a device and submitting crafted input to the affected command. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system of the affected device with root-level privileges.","status":"published","published":"2026-02-25T16:25:38Z","modified":"2026-02-26T14:44:05Z","cvss":[{"version":"3.1","score":6.7,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"medium"}],"updated_at":"2026-11-02T19:48:28.012266Z"}],"ghsa":[{"id":"GHSA-687g-rcf9-r6r3","title":"A vulnerability in the web-based management interface of Cisco FXOS Software and Cisco\u0026nbsp;UCS...","description":"A vulnerability in the web-based management interface of Cisco FXOS Software and Cisco\u0026nbsp;UCS Manager Software could allow an authenticated, local attacker with administrative privileges to perform command injection attacks on an affected system and elevate privileges to\u0026nbsp;root.\u0026nbsp;\n\nThis vulnerability is due to insufficient input validation of command arguments supplied by the user. An attacker could exploit this vulnerability by authenticating to a device and submitting crafted input to the affected command. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system of the affected device with root-level privileges.","status":"published","published":"2026-02-25T18:31:38Z","modified":"2026-02-25T18:31:44Z","cvss":[{"version":"3.1","score":6.7,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"medium"}],"cwes":["CWE-78"],"updated_at":"2026-11-02T15:06:22.774985Z"}],"nvd":[{"id":"CVE-2026-20099","description":"A vulnerability in the web-based management interface of Cisco FXOS Software and Cisco\u0026nbsp;UCS Manager Software could allow an authenticated, local attacker with administrative privileges to perform command injection attacks on an affected system and elevate privileges to\u0026nbsp;root.\u0026nbsp;\r\n\r\nThis vulnerability is due to insufficient input validation of command arguments supplied by the user. An attacker could exploit this vulnerability by authenticating to a device and submitting crafted input to the affected command. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system of the affected device with root-level privileges.","status":"published","published":"2026-02-25T17:25:27.357Z","modified":"2026-06-17T10:17:05.717Z","cvss":[{"version":"3.1","score":6.7,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"medium","assessor":"secondary"}],"cwes":["CWE-78"],"updated_at":"2026-11-02T14:12:07.027269Z"}]}}