{"id":"CVE-2023-34390","aliases":["EUVD-2023-38470","GHSA-78fr-vmpw-5v67"],"status":"published","title":"Improper input validation could lead to denial of service","description":"An input validation vulnerability in the Schweitzer Engineering Laboratories SEL-451 could allow a remote authenticated attacker to create a denial of service against the system and locking out services.\n\n\n\nSee product Instruction Manual Appendix A dated 20230830 for more details.","severity":{"version":"3.1","score":4.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00664,"percentile":0.52032,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-20"],"published":"2023-11-30T16:54:54Z","modified":"2026-06-17T06:03:32Z","products":[{"vendor":"schweitzer engineering laboratories","product":"sel-451"},{"vendor":"selinc","product":"sel-451_firmware"}],"references":[{"url":"https://selinc.com/support/security-notifications/external-reports/","tags":["x_transferred","Vendor Advisory"]},{"url":"https://www.nozominetworks.com/blog/","tags":["x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-34390"},{"url":"https://github.com/advisories/GHSA-78fr-vmpw-5v67"}],"sources":{"cve":[{"id":"CVE-2023-34390","title":" Improper input validation could lead to denial of service","description":"An input validation vulnerability in the Schweitzer Engineering Laboratories SEL-451 could allow a remote authenticated attacker to create a denial of service against the system and locking out services.\n\n\n\nSee product Instruction Manual Appendix A dated 20230830 for more details.\n\n\n","status":"published","published":"2023-11-30T16:54:54.19Z","modified":"2024-08-02T16:10:06.673Z","cvss":[{"version":"3.1","score":4.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:35:35.912488Z"}],"euvd":[{"id":"EUVD-2023-38470","description":"An input validation vulnerability in the Schweitzer Engineering Laboratories SEL-451 could allow a remote authenticated attacker to create a denial of service against the system and locking out services.\n\n\n\nSee product Instruction Manual Appendix A dated 20230830 for more details.\n\n\n","status":"published","published":"2023-11-30T16:54:54Z","modified":"2024-08-02T16:10:06Z","cvss":[{"version":"3.1","score":4.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-03T03:50:04.380287Z"}],"ghsa":[{"id":"GHSA-78fr-vmpw-5v67","title":"An input validation vulnerability in the Schweitzer Engineering Laboratories SEL-451 could allow...","description":"An input validation vulnerability in the Schweitzer Engineering Laboratories SEL-451 could allow a remote authenticated attacker to create a denial of service against the system and locking out services.\n\n\n\nSee product Instruction Manual Appendix A dated 20230830 for more details.\n\n\n","status":"published","published":"2023-11-30T18:31:18Z","modified":"2023-11-30T18:31:18Z","cvss":[{"version":"3.1","score":4.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:55:08.006495Z"}],"nvd":[{"id":"CVE-2023-34390","description":"An input validation vulnerability in the Schweitzer Engineering Laboratories SEL-451 could allow a remote authenticated attacker to create a denial of service against the system and locking out services.\n\n\n\nSee product Instruction Manual Appendix A dated 20230830 for more details.\n\n\n","status":"published","published":"2023-11-30T17:15:09.57Z","modified":"2026-06-17T06:03:32.32Z","cvss":[{"version":"3.1","score":4.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"secondary"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:08:52.544469Z"}]}}