{"id":"CVE-2021-35223","aliases":["EUVD-2021-21866","GHSA-7822-xr7f-c5pr"],"status":"published","title":"Execute Command Function Allows Remote Code Execution (RCE)Vulnerability","description":"The Serv-U File Server allows for events such as user login failures to be audited by executing a command. This command can be supplied with parameters that can take the form of user string variables, allowing remote code execution.","severity":{"version":"3.1","score":8.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.02939,"percentile":0.87289,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-20"],"published":"2021-08-31T16:00:18Z","modified":"2026-06-17T03:57:20Z","products":[{"vendor":"solarwinds","product":"serv-u"}],"references":[{"url":"https://support.solarwinds.com/SuccessCenter/s/article/Execute-Command-Function-Allows-Remote-Code-Execution-RCE-Vulnerability-CVE-2021-35223?language=en_US","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://documentation.solarwinds.com/en/success_center/servu/content/release_notes/servu_15-2-4_release_notes.htm","tags":["x_refsource_MISC","x_transferred","Release Notes","Vendor Advisory"]},{"url":"https://www.solarwinds.com/trust-center/security-advisories/cve-2021-35223","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-35223"},{"url":"https://github.com/advisories/GHSA-7822-xr7f-c5pr"}],"sources":{"cve":[{"id":"CVE-2021-35223","title":"Execute Command Function Allows Remote Code Execution (RCE)Vulnerability","description":"The Serv-U File Server allows for events such as user login failures to be audited by executing a command. This command can be supplied with parameters that can take the form of user string variables, allowing remote code execution.","status":"published","published":"2021-08-31T16:00:18Z","modified":"2024-08-04T00:33:51.26Z","cvss":[{"version":"3.1","score":8.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:33:09.864034Z"}],"euvd":[{"id":"EUVD-2021-21866","description":"The Serv-U File Server allows for events such as user login failures to be audited by executing a command. This command can be supplied with parameters that can take the form of user string variables, allowing remote code execution.","status":"published","published":"2021-08-31T16:00:18Z","modified":"2024-08-04T00:33:51Z","cvss":[{"version":"3.1","score":8.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-03T03:24:30.441845Z"}],"ghsa":[{"id":"GHSA-7822-xr7f-c5pr","title":"The Serv-U File Server allows for events such as user login failures to be audited by executing a...","description":"The Serv-U File Server allows for events such as user login failures to be audited by executing a command. This command can be supplied with parameters that can take the form of ‘user string variables,” allowing remote code execution.","status":"published","published":"2022-05-24T22:28:21Z","modified":"2023-01-30T05:05:16Z","updated_at":"2026-11-02T14:47:13.933319Z"}],"nvd":[{"id":"CVE-2021-35223","description":"The Serv-U File Server allows for events such as user login failures to be audited by executing a command. This command can be supplied with parameters that can take the form of user string variables, allowing remote code execution.","status":"published","published":"2021-08-31T16:15:07.75Z","modified":"2026-06-17T03:57:20.027Z","cvss":[{"version":"3.1","score":8.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":6.5,"vector":"AV:N/AC:L/Au:S/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:06:57.67549Z"}]}}