{"id":"CVE-2021-38447","aliases":["EUVD-2021-24899","GHSA-w75x-f9jm-qxx4"],"status":"published","title":"OCI OpenDDS Secure  Amplification","description":"OCI OpenDDS versions prior to 3.18.1 are vulnerable when an attacker sends a specially crafted packet to flood target devices with unwanted traffic, which may result in a denial-of-service condition.","severity":{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.02137,"percentile":0.82166,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-405"],"published":"2022-05-05T15:18:06Z","modified":"2026-10-24T10:30:27Z","products":[{"vendor":"objectcomputing","product":"opendds"},{"vendor":"oci","product":"opendds"}],"references":[{"url":"https://www.cisa.gov/uscert/ics/advisories/icsa-21-315-02","tags":["x_refsource_CONFIRM","x_transferred","Third Party Advisory","US Government Resource","advisory"]},{"url":"https://opendds.org/","tags":["x_refsource_CONFIRM","x_transferred","Product","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-38447"},{"url":"https://github.com/advisories/GHSA-w75x-f9jm-qxx4"}],"sources":{"cve":[{"id":"CVE-2021-38447","title":"OCI OpenDDS Secure  Amplification","description":"OCI OpenDDS versions prior to 3.18.1 are vulnerable when an attacker sends a specially crafted packet to flood target devices with unwanted traffic, which may result in a denial-of-service condition.","status":"published","published":"2022-05-05T15:18:06Z","modified":"2025-04-16T16:23:41.117Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-405"],"updated_at":"2026-11-02T14:33:07.349244Z"}],"euvd":[{"id":"EUVD-2021-24899","description":"OCI OpenDDS versions prior to 3.18.1 are vulnerable when an attacker sends a specially crafted packet to flood target devices with unwanted traffic, which may result in a denial-of-service condition.","status":"published","published":"2022-05-05T15:18:06Z","modified":"2025-04-16T16:23:41Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H","level":"high"}],"updated_at":"2026-11-02T20:52:24.329168Z"}],"ghsa":[{"id":"GHSA-w75x-f9jm-qxx4","title":"OCI OpenDDS versions prior to 3.18.1 are vulnerable when an attacker sends a specially crafted...","description":"OCI OpenDDS versions prior to 3.18.1 are vulnerable when an attacker sends a specially crafted packet to flood target devices with unwanted traffic, which may result in a denial-of-service condition.","status":"published","published":"2022-05-06T00:00:44Z","modified":"2023-02-01T05:02:06Z","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-405"],"updated_at":"2026-11-02T14:49:50.516173Z"}],"nvd":[{"id":"CVE-2021-38447","description":"OCI OpenDDS versions prior to 3.18.1 are vulnerable when an attacker sends a specially crafted packet to flood target devices with unwanted traffic, which may result in a denial-of-service condition.","status":"published","published":"2022-05-05T17:15:09.77Z","modified":"2026-06-17T04:02:06.75Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/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":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-405"],"updated_at":"2026-11-02T14:07:06.029737Z"}],"osv":[{"id":"CVE-2021-38447","description":"OCI OpenDDS versions prior to 3.18.1 are vulnerable when an attacker sends a specially crafted packet to flood target devices with unwanted traffic, which may result in a denial-of-service condition.","status":"published","published":"2022-05-05T17:15:09.77Z","modified":"2026-10-24T10:30:27.420510614Z","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":"2026-11-02T15:44:20.843843Z"}]}}