{"id":"CVE-2020-3359","published":"2020-09-24T18:02:40Z","modified":"2024-11-13T17:53:53Z","title":"Cisco IOS XE Software for Catalyst 9800 Series Wireless Controllers Multicast DNS Denial of Service Vulnerability","vendor":"Cisco","product":"Cisco IOS XE Software","tier":"tail","description":{"text":"A vulnerability in the multicast DNS (mDNS) feature of Cisco IOS XE Software for Cisco Catalyst 9800 Series Wireless Controllers could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. The vulnerability is due to improper validation of mDNS packets. An attacker could exploit this vulnerability by sending a crafted mDNS packet to an affected device. A successful exploit could cause a device to reload, resulting in a DoS condition.","provenance":"source","from":"CVE.org"},"cvss":{"score":8.6,"severity":"HIGH","version":"3.0","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H","provenance":"source","from":"CVE.org CNA"},"epss":{"score":0.0151,"percentile":0.74343,"provenance":"source"},"cwes":[{"id":"CWE-20","name":"Improper Input Validation"}],"references":[{"url":"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-mdns-dos-3tH6cA9J","tags":["vendor-advisory","x_refsource_CISCO"]}],"priority":{"score":20.9,"factors":[{"name":"EPSS percentile","points":14.87},{"name":"CVSS severity","points":6.02}]},"vendorSlug":"cisco","euvd":{"id":"EUVD-2020-24630","exploited":false,"provenance":"source"},"lineage":{"familyId":"fam-class-cisco-ios-xe-cwe-20"}}