{"id":"CVE-2021-35252","aliases":["EUVD-2021-21895","GHSA-4wvf-2vqw-mj6r"],"status":"published","title":"Common Key Vulnerability in Serv-U FTP Server","description":"Common encryption key appears to be used across all deployed instances of Serv-U FTP Server. Because of this an encrypted value that is exposed to an attacker can be simply recovered to plaintext.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00559,"percentile":0.46812,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-287","CWE-798"],"published":"2022-12-16T00:00:00Z","modified":"2026-06-17T03:57:23Z","products":[{"vendor":"solarwinds","product":"serv-u"},{"vendor":"solarwinds","product":"serv-u ftp server"}],"references":[{"url":"https://documentation.solarwinds.com/en/success_center/servu/content/release_notes/servu_15-3-2_release_notes.htm","tags":["x_transferred","Release Notes","Vendor Advisory"]},{"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-35252","tags":["x_transferred","Third Party Advisory"]},{"url":"https://www.solarwinds.com/trust-center/security-advisories/CVE-2021-35252","tags":["x_transferred","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-35252"},{"url":"https://github.com/advisories/GHSA-4wvf-2vqw-mj6r"}],"sources":{"cve":[{"id":"CVE-2021-35252","title":"Common Key Vulnerability in Serv-U FTP Server","description":"Common encryption key appears to be used across all deployed instances of Serv-U FTP Server. Because of this an encrypted value that is exposed to an attacker can be simply recovered to plaintext.","status":"published","published":"2022-12-16T00:00:00Z","modified":"2025-04-17T20:18:01.478Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"cna"}],"cwes":["CWE-798"],"updated_at":"2026-11-02T14:33:09.864034Z"}],"euvd":[{"id":"EUVD-2021-21895","description":"Common encryption key appears to be used across all deployed instances of Serv-U FTP Server. Because of this an encrypted value that is exposed to an attacker can be simply recovered to plaintext.","status":"published","published":"2022-12-16T00:00:00Z","modified":"2025-04-17T20:18:01Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"updated_at":"2026-11-02T20:52:20.597725Z"}],"ghsa":[{"id":"GHSA-4wvf-2vqw-mj6r","title":"Common encryption key appears to be used across all deployed instances of Serv-U FTP Server....","description":"Common encryption key appears to be used across all deployed instances of Serv-U FTP Server. Because of this an encrypted value that is exposed to an attacker can be simply recovered to plaintext.","status":"published","published":"2022-12-20T18:30:18Z","modified":"2023-07-07T21:30:16Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"cwes":["CWE-287","CWE-798"],"updated_at":"2026-11-02T14:54:42.043841Z"}],"nvd":[{"id":"CVE-2021-35252","description":"Common encryption key appears to be used across all deployed instances of Serv-U FTP Server. Because of this an encrypted value that is exposed to an attacker can be simply recovered to plaintext.","status":"published","published":"2022-12-16T16:15:16.297Z","modified":"2026-06-17T03:57:23.473Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"secondary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"primary"}],"cwes":["CWE-798","CWE-287"],"updated_at":"2026-11-02T14:07:07.323379Z"}]}}