{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2025-20191","assignerOrgId":"d1c1063e-7a18-46af-9102-31f8928bc633","state":"PUBLISHED","assignerShortName":"cisco","dateReserved":"2024-10-10T19:15:13.226Z","datePublished":"2025-05-07T17:18:35.677Z","dateUpdated":"2025-05-07T19:46:53.825Z"},"containers":{"cna":{"title":"Multiple Cisco Products Denial of Service Vulnerability","metrics":[{"format":"cvssV3_1","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H","baseScore":7.4,"baseSeverity":"HIGH","attackVector":"ADJACENT_NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"}}],"descriptions":[{"lang":"en","value":"A vulnerability in the Switch Integrated Security Features (SISF) of Cisco IOS Software, Cisco IOS XE Software, Cisco NX-OS Software, and Cisco Wireless LAN Controller (WLC) AireOS Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device.\r\n\r\nThis vulnerability is due to the incorrect handling of DHCPv6 packets. An attacker could exploit this vulnerability by sending a crafted DHCPv6 packet to an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition."}],"references":[{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sisf-dos-ZGwt4DdY","name":"cisco-sa-sisf-dos-ZGwt4DdY"}],"exploits":[{"lang":"en","value":"The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory."}],"source":{"advisory":"cisco-sa-sisf-dos-ZGwt4DdY","discovery":"EXTERNAL","defects":["CSCvq14413"]},"problemTypes":[{"descriptions":[{"lang":"en","description":"Buffer Access with Incorrect Length Value","type":"cwe","cweId":"CWE-805"}]}],"affected":[{"vendor":"Cisco","product":"Cisco NX-OS Software","versions":[{"version":"8.2(5)","status":"affected"},{"version":"7.3(5)D1(1)","status":"affected"},{"version":"8.4(2)","status":"affected"},{"version":"8.4(3)","status":"affected"},{"version":"9.2(3)","status":"affected"},{"version":"9.2(2v)","status":"affected"},{"version":"7.3(4)D1(1)","status":"affected"},{"version":"8.2(1)","status":"affected"},{"version":"9.2(1)","status":"affected"},{"version":"9.2(2t)","status":"affected"},{"version":"9.2(3y)","status":"affected"},{"version":"7.0(3)I7(6z)","status":"affected"},{"version":"9.3(2)","status":"affected"},{"version":"7.0(3)I7(3z)","status":"affected"},{"version":"7.0(3)IM7(2)","status":"affected"},{"version":"7.0(3)I7(5a)","status":"affected"},{"version":"8.1(1)","status":"affected"},{"version":"8.2(2)","status":"affected"},{"version":"8.3(2)","status":"affected"},{"version":"7.3(2)D1(3a)","status":"affected"},{"version":"9.2(4)","status":"affected"},{"version":"8.1(2)","status":"affected"},{"version":"7.3(3)D1(1)","status":"affected"},{"version":"8.2(3)","status":"affected"},{"version":"7.0(3)I7(2)","status":"affected"},{"version":"7.0(3)I7(3)","status":"affected"},{"version":"8.4(1)","status":"affected"},{"version":"7.3(0)DX(1)","status":"affected"},{"version":"7.3(2)D1(1)","status":"affected"},{"version":"9.3(1)","status":"affected"},{"version":"7.0(3)I7(6)","status":"affected"},{"version":"7.3(2)D1(2)","status":"affected"},{"version":"8.2(4)","status":"affected"},{"version":"7.0(3)I7(4)","status":"affected"},{"version":"7.0(3)I7(7)","status":"affected"},{"version":"9.3(1z)","status":"affected"},{"version":"9.2(2)","status":"affected"},{"version":"8.1(2a)","status":"affected"},{"version":"7.3(2)D1(3)","status":"affected"},{"version":"7.0(3)I7(5)","status":"affected"},{"version":"7.0(3)I7(1)","status":"affected"},{"version":"7.0(3)IA7(2)","status":"affected"},{"version":"7.0(3)IA7(1)","status":"affected"},{"version":"8.3(1)","status":"affected"},{"version":"7.3(1)D1(1)","status":"affected"},{"version":"7.3(0)D1(1)","status":"affected"},{"version":"9.3(3)","status":"affected"},{"version":"7.3(2)D1(1d)","status":"affected"},{"version":"7.0(3)I7(8)","status":"affected"},{"version":"9.3(4)","status":"affected"},{"version":"7.3(6)D1(1)","status":"affected"},{"version":"8.2(6)","status":"affected"},{"version":"9.3(5)","status":"affected"},{"version":"7.0(3)I7(9)","status":"affected"},{"version":"9.3(6)","status":"affected"},{"version":"10.1(2)","status":"affected"},{"version":"10.1(1)","status":"affected"},{"version":"8.4(4)","status":"affected"},{"version":"7.3(7)D1(1)","status":"affected"},{"version":"9.3(5w)","status":"affected"},{"version":"8.2(7)","status":"affected"},{"version":"9.3(7)","status":"affected"},{"version":"9.3(7k)","status":"affected"},{"version":"7.0(3)I7(9w)","status":"affected"},{"version":"10.2(1)","status":"affected"},{"version":"7.3(8)D1(1)","status":"affected"},{"version":"9.3(7a)","status":"affected"},{"version":"8.2(7a)","status":"affected"},{"version":"9.3(8)","status":"affected"},{"version":"8.4(4a)","status":"affected"},{"version":"8.4(5)","status":"affected"},{"version":"7.0(3)I7(10)","status":"affected"},{"version":"8.2(8)","status":"affected"},{"version":"10.2(1q)","status":"affected"},{"version":"10.2(2)","status":"affected"},{"version":"9.3(9)","status":"affected"},{"version":"10.1(2t)","status":"affected"},{"version":"7.3(9)D1(1)","status":"affected"},{"version":"10.2(3)","status":"affected"},{"version":"8.4(6)","status":"affected"},{"version":"10.2(3t)","status":"affected"},{"version":"9.3(10)","status":"affected"},{"version":"10.2(2a)","status":"affected"},{"version":"8.2(9)","status":"affected"},{"version":"10.3(1)","status":"affected"},{"version":"10.2(4)","status":"affected"},{"version":"8.4(7)","status":"affected"},{"version":"10.3(2)","status":"affected"},{"version":"8.4(6a)","status":"affected"},{"version":"9.3(11)","status":"affected"},{"version":"10.3(3)","status":"affected"},{"version":"10.2(5)","status":"affected"},{"version":"8.2(10)","status":"affected"},{"version":"9.3(12)","status":"affected"},{"version":"10.2(3v)","status":"affected"},{"version":"10.4(1)","status":"affected"},{"version":"8.4(8)","status":"affected"},{"version":"10.3(99w)","status":"affected"},{"version":"10.2(6)","status":"affected"},{"version":"10.3(3w)","status":"affected"},{"version":"10.3(99x)","status":"affected"},{"version":"10.3(3o)","status":"affected"},{"version":"8.4(9)","status":"affected"},{"version":"10.3(4)","status":"affected"},{"version":"10.3(3p)","status":"affected"},{"version":"10.3(4a)","status":"affected"},{"version":"10.4(2)","status":"affected"},{"version":"10.3(3q)","status":"affected"},{"version":"9.3(13)","status":"affected"},{"version":"8.2(11)","status":"affected"},{"version":"10.3(5)","status":"affected"},{"version":"10.2(7)","status":"affected"},{"version":"10.4(3)","status":"affected"},{"version":"10.3(3x)","status":"affected"},{"version":"10.3(4g)","status":"affected"},{"version":"10.2(8)","status":"affected"},{"version":"10.3(3r)","status":"affected"},{"version":"9.3(14)","status":"affected"},{"version":"10.3(4h)","status":"affected"}],"defaultStatus":"unknown"},{"vendor":"Cisco","product":"Cisco Wireless LAN Controller (WLC)","versions":[{"version":"8.10.112.0","status":"affected"},{"version":"8.8.120.0","status":"affected"},{"version":"8.3.143.0","status":"affected"},{"version":"8.3.111.0","status":"affected"},{"version":"8.2.164.0","status":"affected"},{"version":"8.5.109.0","status":"affected"},{"version":"8.3.132.0","status":"affected"},{"version":"8.5.105.0","status":"affected"},{"version":"8.2.170.0","status":"affected"},{"version":"8.2.160.0","status":"affected"},{"version":"8.8.100.0","status":"affected"},{"version":"8.9.111.0","status":"affected"},{"version":"8.7.102.0","status":"affected"},{"version":"8.3.102.0","status":"affected"},{"version":"8.3.133.0","status":"affected"},{"version":"8.3.131.0","status":"affected"},{"version":"8.5.100.0","status":"affected"},{"version":"8.5.131.0","status":"affected"},{"version":"8.3.122.0","status":"affected"},{"version":"8.5.101.0","status":"affected"},{"version":"8.3.112.0","status":"affected"},{"version":"8.5.120.0","status":"affected"},{"version":"8.2.141.0","status":"affected"},{"version":"8.3.141.0","status":"affected"},{"version":"8.3.121.0","status":"affected"},{"version":"8.2.151.0","status":"affected"},{"version":"8.3.130.0","status":"affected"},{"version":"8.5.102.0","status":"affected"},{"version":"8.2.161.0","status":"affected"},{"version":"8.5.151.0","status":"affected"},{"version":"8.2.100.0","status":"affected"},{"version":"8.5.135.0","status":"affected"},{"version":"8.3.135.0","status":"affected"},{"version":"8.5.140.0","status":"affected"},{"version":"8.7.106.0","status":"affected"},{"version":"8.9.100.0","status":"affected"},{"version":"8.8.111.0","status":"affected"},{"version":"8.2.110.0","status":"affected"},{"version":"8.5.110.0","status":"affected"},{"version":"8.2.130.0","status":"affected"},{"version":"8.5.141.105","status":"affected"},{"version":"8.2.121.0","status":"affected"},{"version":"8.8.125.0","status":"affected"},{"version":"8.3.150.0","status":"affected"},{"version":"8.2.111.0","status":"affected"},{"version":"8.10.105.0","status":"affected"},{"version":"8.5.108.0","status":"affected"},{"version":"8.3.108.0","status":"affected"},{"version":"8.2.166.0","status":"affected"},{"version":"8.5.103.0","status":"affected"},{"version":"8.3.140.0","status":"affected"},{"version":"8.6.101.0","status":"affected"},{"version":"8.4.100.0","status":"affected"},{"version":"8.5.160.0","status":"affected"},{"version":"8.5.161.0","status":"affected"},{"version":"8.8.130.0","status":"affected"},{"version":"8.10.120.0","status":"affected"},{"version":"8.10.121.0","status":"affected"},{"version":"8.10.113.0","status":"affected"},{"version":"8.10.122.0","status":"affected"},{"version":"8.10.130.0","status":"affected"},{"version":"8.10.141.0","status":"affected"},{"version":"8.10.142.0","status":"affected"},{"version":"8.5.171.0","status":"affected"},{"version":"8.10.150.0","status":"affected"},{"version":"8.10.151.0","status":"affected"},{"version":"8.10.162.0","status":"affected"},{"version":"8.5.182.0","status":"affected"},{"version":"8.10.171.0","status":"affected"},{"version":"8.10.180.0","status":"affected"},{"version":"8.10.181.0","status":"affected"},{"version":"8.10.182.0","status":"affected"},{"version":"8.10.170.0","status":"affected"},{"version":"8.10.183.0","status":"affected"},{"version":"8.5.182.7","status":"affected"},{"version":"8.5.182.105","status":"affected"},{"version":"8.5.182.106","status":"affected"},{"version":"8.10.185.0","status":"affected"},{"version":"8.5.182.107","status":"affected"},{"version":"8.5.182.11","status":"affected"},{"version":"8.5.182.108","status":"affected"},{"version":"8.10.190.0","status":"affected"},{"version":"8.10.195.0","status":"affected"},{"version":"8.5.182.12","status":"affected"}],"defaultStatus":"unknown"}],"providerMetadata":{"orgId":"d1c1063e-7a18-46af-9102-31f8928bc633","shortName":"cisco","dateUpdated":"2025-05-07T17:18:35.677Z"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-05-07T18:56:29.479638Z","id":"CVE-2025-20191","options":[{"Exploitation":"none"},{"Automatable":"no"},{"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":"2025-05-07T19:46:53.825Z"}}]}}