{"id":"CVE-2023-34388","aliases":["EUVD-2023-38468","GHSA-592f-7j4r-r9vv"],"status":"published","title":"Improper authentication could lead to session hijacking","description":"An Improper Authentication vulnerability in the Schweitzer Engineering Laboratories SEL-451 could allow a remote unauthenticated attacker to potentially perform session hijacking attack and bypass authentication.\n\n\n\nSee product Instruction Manual Appendix A dated 20230830 for more details.","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00913,"percentile":0.60384,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-287"],"published":"2023-11-30T16:54:08Z","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-2023-34388"},{"url":"https://github.com/advisories/GHSA-592f-7j4r-r9vv"}],"sources":{"cve":[{"id":"CVE-2023-34388","title":"Improper authentication could lead to session hijacking","description":"An Improper Authentication vulnerability in the Schweitzer Engineering Laboratories SEL-451 could allow a remote unauthenticated attacker to potentially perform session hijacking attack and bypass authentication.\n\n\n\nSee product Instruction Manual Appendix A dated 20230830 for more details.\n\n\n","status":"published","published":"2023-11-30T16:54:08.503Z","modified":"2025-06-03T13:46:12.767Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:35:35.580545Z"}],"euvd":[{"id":"EUVD-2023-38468","description":"An Improper Authentication vulnerability in the Schweitzer Engineering Laboratories SEL-451 could allow a remote unauthenticated attacker to potentially perform session hijacking attack and bypass authentication.\n\n\n\nSee product Instruction Manual Appendix A dated 20230830 for more details.\n\n\n","status":"published","published":"2023-11-30T16:54:08Z","modified":"2025-06-03T13:46:12Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"medium"}],"updated_at":"2026-11-02T20:32:32.089886Z"}],"ghsa":[{"id":"GHSA-592f-7j4r-r9vv","title":"An Improper Authentication vulnerability in the Schweitzer Engineering Laboratories SEL-451 could...","description":"An Improper Authentication vulnerability in the Schweitzer Engineering Laboratories SEL-451 could allow a remote unauthenticated attacker to potentially perform session hijacking attack and bypass authentication.\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":"2023-11-30T18:31:25Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"medium"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:55:08.006495Z"}],"nvd":[{"id":"CVE-2023-34388","description":"An Improper Authentication vulnerability in the Schweitzer Engineering Laboratories SEL-451 could allow a remote unauthenticated attacker to potentially perform session hijacking attack and bypass authentication.\n\n\n\nSee product Instruction Manual Appendix A dated 20230830 for more details.\n\n\n","status":"published","published":"2023-11-30T17:15:09.133Z","modified":"2026-06-17T06:03:32.047Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"medium","assessor":"secondary"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:08:52.544469Z"}]}}