{"id":"CVE-2020-24990","aliases":["EUVD-2020-17690","GHSA-3wqf-jxw5-8w54"],"status":"published","title":"An issue was discovered in QSC Q-SYS Core Manager 8.2.1. By utilizing the TFTP service running on...","description":"An issue was discovered in QSC Q-SYS Core Manager 8.2.1. By utilizing the TFTP service running on UDP port 69, a remote attacker can perform a directory traversal and obtain operating system files via a TFTP GET request, as demonstrated by reading /etc/passwd or /proc/version.","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":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.03681,"percentile":0.89773,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-22"],"published":"2020-10-28T18:49:24Z","modified":"2026-06-17T03:06:12Z","products":[{"vendor":"qsc","product":"q-sys_core_manager"}],"references":[{"url":"https://q-syshelp.qsc.com/Content/Core_Manager/CoreManager_Overview.htm","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"http://seclists.org/fulldisclosure/2020/Oct/30","tags":["x_refsource_MISC","x_transferred","Mailing List","Third Party Advisory"]},{"url":"http://packetstormsecurity.com/files/159699/QSC-Q-SYS-Core-Manager-8.2.1-Directory-Traversal.html","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-24990"},{"url":"https://github.com/advisories/GHSA-3wqf-jxw5-8w54"}],"sources":{"cve":[{"id":"CVE-2020-24990","description":"An issue was discovered in QSC Q-SYS Core Manager 8.2.1. By utilizing the TFTP service running on UDP port 69, a remote attacker can perform a directory traversal and obtain operating system files via a TFTP GET request, as demonstrated by reading /etc/passwd or /proc/version.","status":"published","published":"2020-10-28T18:49:24Z","modified":"2024-08-04T15:26:09.144Z","updated_at":"2026-11-02T14:35:54.468882Z"}],"euvd":[{"id":"EUVD-2020-17690","description":"An issue was discovered in QSC Q-SYS Core Manager 8.2.1. By utilizing the TFTP service running on UDP port 69, a remote attacker can perform a directory traversal and obtain operating system files via a TFTP GET request, as demonstrated by reading /etc/passwd or /proc/version.","status":"published","published":"2020-10-28T18:49:24Z","modified":"2024-08-04T15:26:09Z","updated_at":"2026-11-03T03:07:18.658916Z"}],"ghsa":[{"id":"GHSA-3wqf-jxw5-8w54","title":"An issue was discovered in QSC Q-SYS Core Manager 8.2.1. By utilizing the TFTP service running on...","description":"An issue was discovered in QSC Q-SYS Core Manager 8.2.1. By utilizing the TFTP service running on UDP port 69, a remote attacker can perform a directory traversal and obtain operating system files via a TFTP GET request, as demonstrated by reading /etc/passwd or /proc/version.","status":"published","published":"2022-05-24T17:32:32Z","modified":"2023-01-29T05:04:31Z","cwes":["CWE-22"],"updated_at":"2026-11-02T14:45:34.663559Z"}],"nvd":[{"id":"CVE-2020-24990","description":"An issue was discovered in QSC Q-SYS Core Manager 8.2.1. By utilizing the TFTP service running on UDP port 69, a remote attacker can perform a directory traversal and obtain operating system files via a TFTP GET request, as demonstrated by reading /etc/passwd or /proc/version.","status":"published","published":"2020-10-28T19:15:13.62Z","modified":"2026-06-17T03:06:12.863Z","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":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T14:06:21.80969Z"}]}}