{"id":"CVE-2022-21155","aliases":["EUVD-2022-26400","GHSA-983v-fgvf-4jjc"],"status":"published","title":"Fernhill SCADA Uncontrolled Resource Consumption","description":"A specially crafted packet sent to the Fernhill SCADA Server Version 3.77 and earlier may cause an exception, causing the server process (FHSvrService.exe) to exit.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.01121,"percentile":0.66463,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-400","CWE-755"],"published":"2022-04-12T16:11:56Z","modified":"2026-06-17T04:25:38Z","products":[{"vendor":"fernhill","product":"scada server"},{"vendor":"fernhillsoftware","product":"scada_server"}],"references":[{"url":"https://www.cisa.gov/uscert/ics/advisories/icsa-22-006-02","tags":["x_refsource_MISC","x_transferred","Mitigation","Third Party Advisory","US Government Resource"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-21155"},{"url":"https://github.com/advisories/GHSA-983v-fgvf-4jjc"}],"sources":{"cve":[{"id":"CVE-2022-21155","title":"Fernhill SCADA Uncontrolled Resource Consumption","description":"A specially crafted packet sent to the Fernhill SCADA Server Version 3.77 and earlier may cause an exception, causing the server process (FHSvrService.exe) to exit.","status":"published","published":"2022-04-12T16:11:56Z","modified":"2025-04-16T16:30:39.308Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T14:34:29.478363Z"}],"euvd":[{"id":"EUVD-2022-26400","description":"A specially crafted packet sent to the Fernhill SCADA Server Version 3.77 and earlier may cause an exception, causing the server process (FHSvrService.exe) to exit.","status":"published","published":"2022-04-12T16:11:56Z","modified":"2025-04-16T16:30:39Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T20:52:23.922531Z"}],"ghsa":[{"id":"GHSA-983v-fgvf-4jjc","title":"A specially crafted packet sent to the Fernhill SCADA Server Version 3.77 and earlier may cause...","description":"A specially crafted packet sent to the Fernhill SCADA Server Version 3.77 and earlier may cause an exception, causing the server process (FHSvrService.exe) to exit.","status":"published","published":"2022-04-13T00:00:26Z","modified":"2023-01-27T05:01:37Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-400","CWE-755"],"updated_at":"2026-11-02T14:41:55.795759Z"}],"nvd":[{"id":"CVE-2022-21155","description":"A specially crafted packet sent to the Fernhill SCADA Server Version 3.77 and earlier may cause an exception, causing the server process (FHSvrService.exe) to exit.","status":"published","published":"2022-04-12T17:15:08.99Z","modified":"2026-06-17T04:25:38.507Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","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:N/I:N/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-400","CWE-755"],"updated_at":"2026-11-02T14:07:15.414503Z"}]}}