{"id":"CVE-2009-5038","aliases":["EUVD-2009-4996","GHSA-p246-42mx-3wpf"],"status":"published","title":"Cisco IOS before 15.0(1)XA does not properly handle IRC traffic during a specific time period...","description":"Cisco IOS before 15.0(1)XA does not properly handle IRC traffic during a specific time period after an initial reload, which allows remote attackers to cause a denial of service (device reload) via an attempted connection to a certain IRC server, related to a \"corrupted magic value,\" aka Bug ID CSCso05336.","severity":{"version":"2.0","score":7.8,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:C","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.03118,"percentile":0.8791,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-20"],"published":"2011-01-07T18:00:00Z","modified":"2026-06-16T23:14:52Z","products":[{"vendor":"cisco","product":"ios"}],"references":[{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/64682","tags":["vdb-entry","x_refsource_XF","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"http://www.securityfocus.com/bid/45764","tags":["vdb-entry","x_refsource_BID","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"http://www.cisco.com/en/US/docs/ios/15_0/15_0x/15_01_XA/rn800xa.pdf","tags":["x_refsource_CONFIRM","x_transferred","Release Notes","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2009-5038"},{"url":"https://github.com/advisories/GHSA-p246-42mx-3wpf"}],"sources":{"cve":[{"id":"CVE-2009-5038","description":"Cisco IOS before 15.0(1)XA does not properly handle IRC traffic during a specific time period after an initial reload, which allows remote attackers to cause a denial of service (device reload) via an attempted connection to a certain IRC server, related to a \"corrupted magic value,\" aka Bug ID CSCso05336.","status":"published","published":"2011-01-07T18:00:00Z","modified":"2024-08-07T07:24:54.046Z","updated_at":"2026-11-02T14:33:22.699876Z"}],"euvd":[{"id":"EUVD-2009-4996","description":"Cisco IOS before 15.0(1)XA does not properly handle IRC traffic during a specific time period after an initial reload, which allows remote attackers to cause a denial of service (device reload) via an attempted connection to a certain IRC server, related to a \"corrupted magic value,\" aka Bug ID CSCso05336.","status":"published","published":"2011-01-07T18:00:00Z","modified":"2024-08-07T07:24:54Z","updated_at":"2026-11-03T01:39:08.21747Z"}],"ghsa":[{"id":"GHSA-p246-42mx-3wpf","title":"Cisco IOS before 15.0(1)XA does not properly handle IRC traffic during a specific time period...","description":"Cisco IOS before 15.0(1)XA does not properly handle IRC traffic during a specific time period after an initial reload, which allows remote attackers to cause a denial of service (device reload) via an attempted connection to a certain IRC server, related to a \"corrupted magic value,\" aka Bug ID CSCso05336.","status":"published","published":"2022-05-02T04:00:46Z","modified":"2023-01-31T05:08:24Z","cwes":["CWE-20"],"updated_at":"2026-11-02T14:49:23.788915Z"}],"nvd":[{"id":"CVE-2009-5038","description":"Cisco IOS before 15.0(1)XA does not properly handle IRC traffic during a specific time period after an initial reload, which allows remote attackers to cause a denial of service (device reload) via an attempted connection to a certain IRC server, related to a \"corrupted magic value,\" aka Bug ID CSCso05336.","status":"published","published":"2011-01-07T19:00:02.36Z","modified":"2026-06-16T23:14:52.657Z","cvss":[{"version":"2.0","score":7.8,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:01:38.684719Z"}]}}