{"id":"CVE-2002-1768","aliases":["EUVD-2002-1747","GHSA-9g8q-h72g-fp7m"],"status":"published","title":"Cisco IOS 11.1 through 12.2, when HSRP support is not enabled, allows remote attackers to cause a...","description":"Cisco IOS 11.1 through 12.2, when HSRP support is not enabled, allows remote attackers to cause a denial of service (CPU consumption) via randomly sized UDP packets to the Hot Standby Routing Protocol (HSRP) port 1985.","severity":{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.01591,"percentile":0.7584,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2002-12-31T05:00:00Z","modified":"2026-06-16T21:59:56Z","products":[{"vendor":"cisco","product":"ios"}],"references":[{"url":"http://archives.neohapsis.com/archives/bugtraq/2002-06/0027.html","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/9282","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"http://archives.neohapsis.com/archives/bugtraq/2002-06/0050.html","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred"]},{"url":"http://www.securityfocus.com/bid/4948","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2002-1768"},{"url":"https://github.com/advisories/GHSA-9g8q-h72g-fp7m"}],"sources":{"cve":[{"id":"CVE-2002-1768","description":"Cisco IOS 11.1 through 12.2, when HSRP support is not enabled, allows remote attackers to cause a denial of service (CPU consumption) via randomly sized UDP packets to the Hot Standby Routing Protocol (HSRP) port 1985.","status":"published","published":"2005-06-21T04:00:00Z","modified":"2024-08-08T03:34:56.223Z","updated_at":"2026-11-02T14:33:54.972584Z"}],"euvd":[{"id":"EUVD-2002-1747","description":"Cisco IOS 11.1 through 12.2, when HSRP support is not enabled, allows remote attackers to cause a denial of service (CPU consumption) via randomly sized UDP packets to the Hot Standby Routing Protocol (HSRP) port 1985.","status":"published","published":"2005-06-21T04:00:00Z","modified":"2024-08-08T03:34:56Z","updated_at":"2026-11-03T01:14:54.820731Z"}],"ghsa":[{"id":"GHSA-9g8q-h72g-fp7m","title":"Cisco IOS 11.1 through 12.2, when HSRP support is not enabled, allows remote attackers to cause a...","description":"Cisco IOS 11.1 through 12.2, when HSRP support is not enabled, allows remote attackers to cause a denial of service (CPU consumption) via randomly sized UDP packets to the Hot Standby Routing Protocol (HSRP) port 1985.","status":"published","published":"2022-04-30T18:21:49Z","modified":"2023-01-30T05:06:30Z","updated_at":"2026-11-02T14:47:30.5047Z"}],"nvd":[{"id":"CVE-2002-1768","description":"Cisco IOS 11.1 through 12.2, when HSRP support is not enabled, allows remote attackers to cause a denial of service (CPU consumption) via randomly sized UDP packets to the Hot Standby Routing Protocol (HSRP) port 1985.","status":"published","published":"2002-12-31T05:00:00Z","modified":"2026-06-16T21:59:56.857Z","cvss":[{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:00:43.239725Z"}]}}