{"id":"CVE-2022-33993","aliases":["EUVD-2022-37026","GHSA-5wg5-mm98-g4ph"],"status":"published","title":"Misinterpretation of special domain name characters in DNRD (aka Domain Name Relay Daemon) 2.20.3...","description":"Misinterpretation of special domain name characters in DNRD (aka Domain Name Relay Daemon) 2.20.3 leads to cache poisoning because domain names and their associated IP addresses are cached in their misinterpreted form.","severity":{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.00973,"percentile":0.62274,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2022-08-15T11:45:47Z","modified":"2026-06-17T04:49:38Z","products":[{"vendor":"domain_name_relay_daemon_project","product":"domain_name_relay_daemon"}],"references":[{"url":"https://www.usenix.org/conference/usenixsecurity21/presentation/jeitner","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://www.usenix.org/conference/usenixsecurity22/presentation/jeitner","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"http://dnrd.sourceforge.net/","tags":["x_refsource_MISC","x_transferred","Product","Third Party Advisory"]},{"url":"https://www.openwall.com/lists/oss-security/2022/08/14/1","tags":["x_refsource_MISC","x_transferred","Mailing List","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-33993"},{"url":"https://github.com/advisories/GHSA-5wg5-mm98-g4ph"}],"sources":{"cve":[{"id":"CVE-2022-33993","description":"Misinterpretation of special domain name characters in DNRD (aka Domain Name Relay Daemon) 2.20.3 leads to cache poisoning because domain names and their associated IP addresses are cached in their misinterpreted form.","status":"published","published":"2022-08-15T11:45:47Z","modified":"2024-08-03T08:16:16.573Z","updated_at":"2026-11-02T14:34:40.621895Z"}],"euvd":[{"id":"EUVD-2022-37026","description":"Misinterpretation of special domain name characters in DNRD (aka Domain Name Relay Daemon) 2.20.3 leads to cache poisoning because domain names and their associated IP addresses are cached in their misinterpreted form.","status":"published","published":"2022-08-15T11:45:47Z","modified":"2024-08-03T08:16:16Z","updated_at":"2026-11-03T03:25:29.68115Z"}],"ghsa":[{"id":"GHSA-5wg5-mm98-g4ph","title":"Misinterpretation of special domain name characters in DNRD (aka Domain Name Relay Daemon) 2.20.3...","description":"Misinterpretation of special domain name characters in DNRD (aka Domain Name Relay Daemon) 2.20.3 leads to cache poisoning because domain names and their associated IP addresses are cached in their misinterpreted form.","status":"published","published":"2022-08-16T00:00:31Z","modified":"2023-01-30T05:06:45Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T14:47:33.82399Z"}],"nvd":[{"id":"CVE-2022-33993","description":"Misinterpretation of special domain name characters in DNRD (aka Domain Name Relay Daemon) 2.20.3 leads to cache poisoning because domain names and their associated IP addresses are cached in their misinterpreted form.","status":"published","published":"2022-08-15T12:15:19.2Z","modified":"2026-06-17T04:49:38.053Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:07:25.242752Z"}]}}