{"id":"CVE-2026-20037","aliases":["EUVD-2026-8667","GHSA-qwj7-2gpw-fvvg"],"status":"published","title":"Cisco UCS Manager File Write Vulnerability","description":"A vulnerability in the NX-OS CLI privilege levels of Cisco UCS Manager Software could allow an authenticated, local attacker with read-only privileges to modify files and perform unauthorized actions on an affected system.\r\n\u0026nbsp;\r\nThis vulnerability exists because unnecessary privileges are given to the user. An attacker could exploit this vulnerability by authenticating to a device as a read-only user and connecting to the NX-OS CLI. A successful exploit could allow the attacker to create or overwrite files in the file system or perform limited privileged actions on an affected device.\u0026nbsp; \u0026nbsp;","severity":{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.0011,"percentile":0.01295,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-250"],"published":"2026-02-25T16:24:09Z","modified":"2026-06-17T10:16:57Z","products":[{"vendor":"cisco","product":"cisco unified computing system (managed)"}],"references":[{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ucsm-afwae-mOgUfyLn"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-20037"},{"url":"https://github.com/advisories/GHSA-qwj7-2gpw-fvvg"}],"sources":{"cve":[{"id":"CVE-2026-20037","title":"Cisco UCS Manager File Write Vulnerability","description":"A vulnerability in the NX-OS CLI privilege levels of Cisco UCS Manager Software could allow an authenticated, local attacker with read-only privileges to modify files and perform unauthorized actions on an affected system.\r\n\u0026nbsp;\r\nThis vulnerability exists because unnecessary privileges are given to the user. An attacker could exploit this vulnerability by authenticating to a device as a read-only user and connecting to the NX-OS CLI. A successful exploit could allow the attacker to create or overwrite files in the file system or perform limited privileged actions on an affected device.\u0026nbsp; \u0026nbsp;","status":"published","published":"2026-02-25T16:24:09.65Z","modified":"2026-02-25T19:05:48.855Z","cvss":[{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-250"],"updated_at":"2026-11-02T13:35:44.571002Z"}],"euvd":[{"id":"EUVD-2026-8667","description":"A vulnerability in the NX-OS CLI privilege levels of Cisco UCS Manager Software could allow an authenticated, local attacker with read-only privileges to modify files and perform unauthorized actions on an affected system.\r\n\u0026nbsp;\r\nThis vulnerability exists because unnecessary privileges are given to the user. An attacker could exploit this vulnerability by authenticating to a device as a read-only user and connecting to the NX-OS CLI. A successful exploit could allow the attacker to create or overwrite files in the file system or perform limited privileged actions on an affected device.\u0026nbsp; \u0026nbsp;","status":"published","published":"2026-02-25T16:24:09Z","modified":"2026-02-25T19:05:48Z","cvss":[{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T19:48:28.530473Z"}],"ghsa":[{"id":"GHSA-qwj7-2gpw-fvvg","title":"A vulnerability in the NX-OS CLI privilege levels of Cisco UCS Manager Software could allow an...","description":"A vulnerability in the NX-OS CLI privilege levels of Cisco UCS Manager Software could allow an authenticated, local attacker with read-only privileges to modify files and perform unauthorized actions on an affected system.\n\u0026nbsp;\nThis vulnerability exists because unnecessary privileges are given to the user. An attacker could exploit this vulnerability by authenticating to a device as a read-only user and connecting to the NX-OS CLI. A successful exploit could allow the attacker to create or overwrite files in the file system or perform limited privileged actions on an affected device.\u0026nbsp; \u0026nbsp;","status":"published","published":"2026-02-25T18:31:38Z","modified":"2026-02-25T18:31:44Z","cvss":[{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-250"],"updated_at":"2026-11-02T15:06:22.774985Z"}],"nvd":[{"id":"CVE-2026-20037","description":"A vulnerability in the NX-OS CLI privilege levels of Cisco UCS Manager Software could allow an authenticated, local attacker with read-only privileges to modify files and perform unauthorized actions on an affected system.\r\n\u0026nbsp;\r\nThis vulnerability exists because unnecessary privileges are given to the user. An attacker could exploit this vulnerability by authenticating to a device as a read-only user and connecting to the NX-OS CLI. A successful exploit could allow the attacker to create or overwrite files in the file system or perform limited privileged actions on an affected device.\u0026nbsp; \u0026nbsp;","status":"published","published":"2026-02-25T17:25:25.19Z","modified":"2026-06-17T10:16:57.22Z","cvss":[{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-250"],"updated_at":"2026-11-02T14:12:07.027269Z"}]}}