{"id":"CVE-2021-30464","aliases":["EUVD-2021-17389","GHSA-pj65-m939-vpp3"],"status":"published","title":"OMICRON StationGuard before 1.10 allows remote attackers to cause a denial of service ...","description":"OMICRON StationGuard before 1.10 allows remote attackers to cause a denial of service (connectivity outage) via crafted tcp/20499 packets to the CTRL Ethernet port.","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":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.01241,"percentile":0.69407,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-400"],"published":"2021-04-20T18:29:53Z","modified":"2026-06-17T03:50:17Z","products":[{"vendor":"omicronenergy","product":"stationguard"}],"references":[{"url":"https://www.omicronenergy.com/en/support/product-security/","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://www.omicronenergy.com/download/file/e81f23250097e7d5e1071dfbdb7f16d2/","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-30464"},{"url":"https://github.com/advisories/GHSA-pj65-m939-vpp3"}],"sources":{"cve":[{"id":"CVE-2021-30464","description":"OMICRON StationGuard before 1.10 allows remote attackers to cause a denial of service (connectivity outage) via crafted tcp/20499 packets to the CTRL Ethernet port.","status":"published","published":"2021-04-20T18:29:53Z","modified":"2024-08-03T22:32:41.074Z","updated_at":"2026-11-02T14:33:02.20241Z"}],"euvd":[{"id":"EUVD-2021-17389","description":"OMICRON StationGuard before 1.10 allows remote attackers to cause a denial of service (connectivity outage) via crafted tcp/20499 packets to the CTRL Ethernet port.","status":"published","published":"2021-04-20T18:29:53Z","modified":"2024-08-03T22:32:41Z","updated_at":"2026-11-03T03:24:42.48986Z"}],"ghsa":[{"id":"GHSA-pj65-m939-vpp3","title":"OMICRON StationGuard before 1.10 allows remote attackers to cause a denial of service ...","description":"OMICRON StationGuard before 1.10 allows remote attackers to cause a denial of service (connectivity outage) via crafted tcp/20499 packets to the CTRL Ethernet port.","status":"published","published":"2022-05-24T17:48:01Z","modified":"2023-01-29T05:06:01Z","cwes":["CWE-400"],"updated_at":"2026-11-02T14:45:55.677123Z"}],"nvd":[{"id":"CVE-2021-30464","description":"OMICRON StationGuard before 1.10 allows remote attackers to cause a denial of service (connectivity outage) via crafted tcp/20499 packets to the CTRL Ethernet port.","status":"published","published":"2021-04-20T19:15:09.72Z","modified":"2026-06-17T03:50:17.517Z","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":"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"],"updated_at":"2026-11-02T14:06:52.03307Z"}]}}