{"id":"CVE-2003-0100","url":"https://www.cyber-defence.io/tools/cve/CVE-2003-0100","generatedAt":"2026-10-27T17:29:53.859Z","title":"Buffer overflow in Cisco IOS 11.2.x to 12.0.x allows remote attackers to cause a denial of service and possibly execute commands via a large number of OSPF neighbor announcements.","description":"Buffer overflow in Cisco IOS 11.2.x to 12.0.x allows remote attackers to cause a denial of service and possibly execute commands via a large number of OSPF neighbor announcements.","published":"2003-03-03T05:00:00.000Z","lastModified":"2026-06-16T22:01:32.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"2.0","score":7.5,"severity":"HIGH","vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P"},"cwe":[],"affected":["cisco/ios"],"epss":{"score":0.09625,"percentile":0.9545,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":1,"verified":true,"firstPublished":"2003-02-20","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":22271,"kind":"exploit","title":"Cisco IOS 11/12 - OSPF Neighbor Buffer Overflow","url":"https://www.exploit-db.com/exploits/22271","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/hardware/remote/22271.c","file":"exploits/hardware/remote/22271.c","published":"2003-02-20","added":"2003-02-20","updated":"2012-10-27","author":"FX","type":"remote","platform":"hardware","port":null,"verified":true,"codes":["CVE-2003-0100","OSVDB-6455"],"tags":null,"aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":"https://www.securityfocus.com/bid/6895/info"}]},"verdict":{"level":"urgent","text":"A public exploit is published in Exploit-DB (verified) and the impact is high, while EPSS rates exploitation at 9.6%. Anyone can run this; patch or mitigate before the next change window and check exposed instances for signs of use."},"changes":[],"references":[{"url":"http://marc.info/?l=bugtraq&m=104576100719090&w=2","source":"cve@mitre.org"},{"url":"http://marc.info/?l=bugtraq&m=104587206702715&w=2","source":"cve@mitre.org"},{"url":"http://www.iss.net/security_center/static/11373.php","tags":["Vendor Advisory"],"source":"cve@mitre.org"},{"url":"http://www.securityfocus.com/bid/6895","source":"cve@mitre.org"},{"url":"http://marc.info/?l=bugtraq&m=104576100719090&w=2","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://marc.info/?l=bugtraq&m=104587206702715&w=2","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.iss.net/security_center/static/11373.php","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/6895","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2003-0100","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}