{"id":"CVE-1999-0103","title":"Echo and chargen, or other combinations of UDP services, can be used in tandem to flood the server, a.k.a","summary":"Echo and chargen, or other combinations of UDP services, can be used in tandem to flood the server, a.k.a. UDP bomb or UDP packet storm.","severity":"medium","cvss":5,"cvssVector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","published":"1996-02-08","updated":"2026-06-16","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-1999-0103","references":[{"url":"https://ics-cert.us-cert.gov/advisories/ICSMA-18-233-01","label":"cve@mitre.org"},{"url":"http://www.securityfocus.com/bid/80171","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://ics-cert.us-cert.gov/advisories/ICSMA-18-233-01","label":"af854a3a-2127-422b-91ae-364da2661108"}],"tags":["nvd","exploit-available"],"epss":0.14515,"epssPercentile":0.96534,"ingestedAt":"2026-06-22T15:59:08.060Z","exploits":{"metasploit":["auxiliary/scanner/chargen/chargen_probe"],"checkedAt":"2026-09-21T15:23:28.480Z"},"exploitAvailable":true,"slug":"CVE-1999-0103","body":"## Overview\n\nEcho and chargen, or other combinations of UDP services, can be used in tandem to flood the server, a.k.a. UDP bomb or UDP packet storm.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":42,"depthScoreParts":{"impact":27.5,"likelihood":2.9,"exploitation":12,"ransomware":0},"changes":[{"seq":4437,"id":"CVE-1999-0103","ts":1788887179434,"field":"exploit_available","old":"false","new":"true"},{"seq":3320,"id":"CVE-1999-0103","ts":1788886298535,"field":"exploit_available","old":"true","new":"false"},{"seq":2175,"id":"CVE-1999-0103","ts":1788882968398,"field":"exploit_available","old":"false","new":"true"},{"seq":1204,"id":"CVE-1999-0103","ts":1788882367689,"field":"exploit_available","old":"true","new":"false"},{"seq":318,"id":"CVE-1999-0103","ts":1788881814549,"field":"exploit_available","old":"false","new":"true"}]}