{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2024-20446","assignerOrgId":"d1c1063e-7a18-46af-9102-31f8928bc633","state":"PUBLISHED","assignerShortName":"cisco","dateReserved":"2023-11-08T15:08:07.678Z","datePublished":"2024-08-28T16:31:32.514Z","dateUpdated":"2024-08-28T18:49:32.927Z"},"containers":{"cna":{"title":"Cisco NX-OS Software DHCPv6 Relay Agent Denial of Service Vulnerability","metrics":[{"format":"cvssV3_1","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H","baseScore":8.6,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"}}],"descriptions":[{"lang":"en","value":"A vulnerability in the DHCPv6 relay agent of Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.\r\n\r\nThis vulnerability is due to improper handling of specific fields in a DHCPv6 RELAY-REPLY message. An attacker could exploit this vulnerability by sending a crafted DHCPv6 packet to any IPv6 address that is configured on an affected device. A successful exploit could allow the attacker to cause the dhcp_snoop process to crash and restart multiple times, causing the affected device to reload and resulting in a DoS condition."}],"references":[{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-dhcp6-relay-dos-znEAA6xn","name":"cisco-sa-nxos-dhcp6-relay-dos-znEAA6xn"}],"exploits":[{"lang":"en","value":"The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory."}],"source":{"advisory":"cisco-sa-nxos-dhcp6-relay-dos-znEAA6xn","discovery":"EXTERNAL","defects":["CSCwk27906"]},"problemTypes":[{"descriptions":[{"lang":"en","description":"NULL Pointer Dereference","type":"cwe","cweId":"CWE-476"}]}],"affected":[{"vendor":"Cisco","product":"Cisco NX-OS Software","versions":[{"version":"10.2(1)","status":"affected"},{"version":"10.2(1q)","status":"affected"},{"version":"9.3(9)","status":"affected"},{"version":"8.2(11)","status":"affected"}],"defaultStatus":"unknown"}],"providerMetadata":{"orgId":"d1c1063e-7a18-46af-9102-31f8928bc633","shortName":"cisco","dateUpdated":"2024-08-28T16:31:32.514Z"}},"adp":[{"affected":[{"vendor":"cisco","product":"nx-os","cpes":["cpe:2.3:o:cisco:nx-os:10.2\\(1\\):*:*:*:*:*:*:*"],"defaultStatus":"unknown","versions":[{"version":"10.2\\(1\\)","status":"affected"}]},{"vendor":"cisco","product":"nx-os","cpes":["cpe:2.3:o:cisco:nx-os:10.2\\(1q\\):*:*:*:*:*:*:*"],"defaultStatus":"unknown","versions":[{"version":"10.2\\(1q\\)","status":"affected"}]},{"vendor":"cisco","product":"nx-os","cpes":["cpe:2.3:o:cisco:nx-os:9.3\\(9\\):*:*:*:*:*:*:*"],"defaultStatus":"unknown","versions":[{"version":"9.3\\(9\\)","status":"affected"}]},{"vendor":"cisco","product":"nx-os","cpes":["cpe:2.3:o:cisco:nx-os:8.2\\(11\\):*:*:*:*:*:*:*"],"defaultStatus":"unknown","versions":[{"version":"8.2\\(11\\)","status":"affected"}]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2024-08-28T18:45:44.020456Z","id":"CVE-2024-20446","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2024-08-28T18:49:32.927Z"}}]}}