{"id":"CVE-2025-20202","state":"PUBLISHED","title":"A vulnerability in Cisco IOS XE Wireless Controller Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device.\r","description":"A vulnerability in Cisco IOS XE Wireless Controller Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device.\r\n\r This vulnerability is due to insufficient input validation of access point (AP) Cisco Discovery Protocol (CDP) neighbor reports when they are processed by the wireless controller. An attacker could exploit this vulnerability by sending a crafted CDP packet to an AP. A successful exploit could allow the attacker to cause an unexpected reload of the wireless controller that is managing the AP, resulting in a DoS condition that affects the wireless network.","publishedAt":"2025-05-07T17:35:14.380Z","updatedAt":"2025-05-07T19:45:13.020Z","severity":{"score":7.4,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H","source":"cisco"},"assigner":"cisco","products":["Cisco Cisco IOS XE Software"],"affected":[{"vendor":"Cisco","product":"Cisco IOS XE Software","versions":[{"version":"16.10.1","status":"affected"},{"version":"16.10.1a","status":"affected"},{"version":"16.10.1b","status":"affected"},{"version":"16.10.1s","status":"affected"},{"version":"16.10.1c","status":"affected"},{"version":"16.10.1e","status":"affected"},{"version":"16.10.1d","status":"affected"},{"version":"16.10.2","status":"affected"},{"version":"16.10.1f","status":"affected"},{"version":"16.10.1g","status":"affected"},{"version":"16.10.3","status":"affected"},{"version":"16.11.1","status":"affected"},{"version":"16.11.1a","status":"affected"},{"version":"16.11.1b","status":"affected"},{"version":"16.11.2","status":"affected"},{"version":"16.11.1s","status":"affected"},{"version":"16.12.1","status":"affected"},{"version":"16.12.1s","status":"affected"},{"version":"16.12.1a","status":"affected"},{"version":"16.12.1c","status":"affected"},{"version":"16.12.1w","status":"affected"},{"version":"16.12.2","status":"affected"},{"version":"16.12.1y","status":"affected"},{"version":"16.12.2a","status":"affected"},{"version":"16.12.3","status":"affected"},{"version":"16.12.8","status":"affected"},{"version":"16.12.2s","status":"affected"},{"version":"16.12.1x","status":"affected"},{"version":"16.12.1t","status":"affected"},{"version":"16.12.4","status":"affected"},{"version":"16.12.3s","status":"affected"},{"version":"16.12.3a","status":"affected"},{"version":"16.12.4a","status":"affected"},{"version":"16.12.5","status":"affected"},{"version":"16.12.6","status":"affected"},{"version":"16.12.1z1","status":"affected"},{"version":"16.12.5a","status":"affected"},{"version":"16.12.5b","status":"affected"},{"version":"16.12.1z2","status":"affected"},{"version":"16.12.6a","status":"affected"},{"version":"16.12.7","status":"affected"},{"version":"16.12.9","status":"affected"},{"version":"16.12.10","status":"affected"},{"version":"16.12.10a","status":"affected"},{"version":"16.12.11","status":"affected"},{"version":"16.12.12","status":"affected"},{"version":"17.1.1","status":"affected"},{"version":"17.1.1a","status":"affected"},{"version":"17.1.1s","status":"affected"},{"version":"17.1.1t","status":"affected"},{"version":"17.1.3","status":"affected"},{"version":"17.2.1","status":"affected"},{"version":"17.2.1r","status":"affected"},{"version":"17.2.1a","status":"affected"},{"version":"17.2.1v","status":"affected"},{"version":"17.2.2","status":"affected"},{"version":"17.2.3","status":"affected"},{"version":"17.3.1","status":"affected"},{"version":"17.3.2","status":"affected"},{"version":"17.3.3","status":"affected"},{"version":"17.3.1a","status":"affected"},{"version":"17.3.1w","status":"affected"},{"version":"17.3.2a","status":"affected"},{"version":"17.3.1x","status":"affected"},{"version":"17.3.1z","status":"affected"},{"version":"17.3.4","status":"affected"},{"version":"17.3.5","status":"affected"},{"version":"17.3.4a","status":"affected"},{"version":"17.3.6","status":"affected"},{"version":"17.3.4b","status":"affected"},{"version":"17.3.4c","status":"affected"},{"version":"17.3.5a","status":"affected"},{"version":"17.3.5b","status":"affected"},{"version":"17.3.7","status":"affected"},{"version":"17.3.8","status":"affected"},{"version":"17.3.8a","status":"affected"},{"version":"17.4.1","status":"affected"},{"version":"17.4.2","status":"affected"},{"version":"17.4.1a","status":"affected"},{"version":"17.4.1b","status":"affected"},{"version":"17.4.2a","status":"affected"},{"version":"17.5.1","status":"affected"},{"version":"17.5.1a","status":"affected"},{"version":"17.6.1","status":"affected"},{"version":"17.6.2","status":"affected"},{"version":"17.6.1w","status":"affected"},{"version":"17.6.1a","status":"affected"},{"version":"17.6.1x","status":"affected"},{"version":"17.6.3","status":"affected"},{"version":"17.6.1y","status":"affected"},{"version":"17.6.1z","status":"affected"},{"version":"17.6.3a","status":"affected"},{"version":"17.6.4","status":"affected"},{"version":"17.6.1z1","status":"affected"},{"version":"17.6.5","status":"affected"},{"version":"17.6.6","status":"affected"},{"version":"17.6.6a","status":"affected"},{"version":"17.6.5a","status":"affected"},{"version":"17.6.7","status":"affected"},{"version":"17.6.8","status":"affected"},{"version":"17.6.8a","status":"affected"},{"version":"17.7.1","status":"affected"},{"version":"17.7.1a","status":"affected"},{"version":"17.7.1b","status":"affected"},{"version":"17.7.2","status":"affected"},{"version":"17.10.1","status":"affected"},{"version":"17.10.1a","status":"affected"},{"version":"17.10.1b","status":"affected"},{"version":"17.8.1","status":"affected"},{"version":"17.8.1a","status":"affected"},{"version":"17.9.1","status":"affected"},{"version":"17.9.1w","status":"affected"},{"version":"17.9.2","status":"affected"},{"version":"17.9.1a","status":"affected"},{"version":"17.9.1x","status":"affected"},{"version":"17.9.1y","status":"affected"},{"version":"17.9.3","status":"affected"},{"version":"17.9.2a","status":"affected"},{"version":"17.9.1x1","status":"affected"},{"version":"17.9.3a","status":"affected"},{"version":"17.9.4","status":"affected"},{"version":"17.9.1y1","status":"affected"},{"version":"17.9.5","status":"affected"},{"version":"17.9.4a","status":"affected"},{"version":"17.9.5a","status":"affected"},{"version":"17.9.5b","status":"affected"},{"version":"17.9.5e","status":"affected"},{"version":"17.9.5f","status":"affected"},{"version":"17.11.1","status":"affected"},{"version":"17.11.1a","status":"affected"},{"version":"17.12.1","status":"affected"},{"version":"17.12.1w","status":"affected"},{"version":"17.12.1a","status":"affected"},{"version":"17.12.1x","status":"affected"},{"version":"17.12.2","status":"affected"},{"version":"17.12.3","status":"affected"},{"version":"17.12.2a","status":"affected"},{"version":"17.12.1y","status":"affected"},{"version":"17.12.1z","status":"affected"},{"version":"17.12.4","status":"affected"},{"version":"17.12.3a","status":"affected"},{"version":"17.12.1z1","status":"affected"},{"version":"17.12.4a","status":"affected"},{"version":"17.12.4b","status":"affected"},{"version":"17.13.1","status":"affected"},{"version":"17.13.1a","status":"affected"},{"version":"17.14.1","status":"affected"},{"version":"17.14.1a","status":"affected"},{"version":"17.11.99SW","status":"affected"},{"version":"17.15.1","status":"affected"},{"version":"17.15.1w","status":"affected"},{"version":"17.15.1a","status":"affected"},{"version":"17.15.1b","status":"affected"}]}],"references":["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ewlc-cdp-dos-fpeks9K"],"weaknesses":["CWE-805"],"ingestedAt":"2026-10-29T20:08:39.238Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/20xxx/CVE-2025-20202.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2025-20202","state":"PUBLISHED","datePublished":"2025-05-07T17:35:14.380Z","dateUpdated":"2025-05-07T19:45:13.020Z","assignerShortName":"cisco","assignerOrgId":"d1c1063e-7a18-46af-9102-31f8928bc633","dateReserved":"2024-10-10T19:15:13.229Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"A vulnerability in Cisco IOS XE Wireless Controller Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device.\r\n\r This vulnerability is due to insufficient input validation of access point (AP) Cisco Discovery Protocol (CDP) neighbor reports when they are processed by the wireless controller. An attacker could exploit this vulnerability by sending a crafted CDP packet to an AP. A successful exploit could allow the attacker to cause an unexpected reload of the wireless controller that is managing the AP, resulting in a DoS condition that affects the wireless network."}],"affected":[{"vendor":"Cisco","product":"Cisco IOS XE Software","versions":[{"version":"16.10.1","status":"affected"},{"version":"16.10.1a","status":"affected"},{"version":"16.10.1b","status":"affected"},{"version":"16.10.1s","status":"affected"},{"version":"16.10.1c","status":"affected"},{"version":"16.10.1e","status":"affected"},{"version":"16.10.1d","status":"affected"},{"version":"16.10.2","status":"affected"},{"version":"16.10.1f","status":"affected"},{"version":"16.10.1g","status":"affected"},{"version":"16.10.3","status":"affected"},{"version":"16.11.1","status":"affected"},{"version":"16.11.1a","status":"affected"},{"version":"16.11.1b","status":"affected"},{"version":"16.11.2","status":"affected"},{"version":"16.11.1s","status":"affected"},{"version":"16.12.1","status":"affected"},{"version":"16.12.1s","status":"affected"},{"version":"16.12.1a","status":"affected"},{"version":"16.12.1c","status":"affected"},{"version":"16.12.1w","status":"affected"},{"version":"16.12.2","status":"affected"},{"version":"16.12.1y","status":"affected"},{"version":"16.12.2a","status":"affected"},{"version":"16.12.3","status":"affected"},{"version":"16.12.8","status":"affected"},{"version":"16.12.2s","status":"affected"},{"version":"16.12.1x","status":"affected"},{"version":"16.12.1t","status":"affected"},{"version":"16.12.4","status":"affected"},{"version":"16.12.3s","status":"affected"},{"version":"16.12.3a","status":"affected"},{"version":"16.12.4a","status":"affected"},{"version":"16.12.5","status":"affected"},{"version":"16.12.6","status":"affected"},{"version":"16.12.1z1","status":"affected"},{"version":"16.12.5a","status":"affected"},{"version":"16.12.5b","status":"affected"},{"version":"16.12.1z2","status":"affected"},{"version":"16.12.6a","status":"affected"},{"version":"16.12.7","status":"affected"},{"version":"16.12.9","status":"affected"},{"version":"16.12.10","status":"affected"},{"version":"16.12.10a","status":"affected"},{"version":"16.12.11","status":"affected"},{"version":"16.12.12","status":"affected"},{"version":"17.1.1","status":"affected"},{"version":"17.1.1a","status":"affected"},{"version":"17.1.1s","status":"affected"},{"version":"17.1.1t","status":"affected"},{"version":"17.1.3","status":"affected"},{"version":"17.2.1","status":"affected"},{"version":"17.2.1r","status":"affected"},{"version":"17.2.1a","status":"affected"},{"version":"17.2.1v","status":"affected"},{"version":"17.2.2","status":"affected"},{"version":"17.2.3","status":"affected"},{"version":"17.3.1","status":"affected"},{"version":"17.3.2","status":"affected"},{"version":"17.3.3","status":"affected"},{"version":"17.3.1a","status":"affected"},{"version":"17.3.1w","status":"affected"},{"version":"17.3.2a","status":"affected"},{"version":"17.3.1x","status":"affected"},{"version":"17.3.1z","status":"affected"},{"version":"17.3.4","status":"affected"},{"version":"17.3.5","status":"affected"},{"version":"17.3.4a","status":"affected"},{"version":"17.3.6","status":"affected"},{"version":"17.3.4b","status":"affected"},{"version":"17.3.4c","status":"affected"},{"version":"17.3.5a","status":"affected"},{"version":"17.3.5b","status":"affected"},{"version":"17.3.7","status":"affected"},{"version":"17.3.8","status":"affected"},{"version":"17.3.8a","status":"affected"},{"version":"17.4.1","status":"affected"},{"version":"17.4.2","status":"affected"},{"version":"17.4.1a","status":"affected"},{"version":"17.4.1b","status":"affected"},{"version":"17.4.2a","status":"affected"},{"version":"17.5.1","status":"affected"},{"version":"17.5.1a","status":"affected"},{"version":"17.6.1","status":"affected"},{"version":"17.6.2","status":"affected"},{"version":"17.6.1w","status":"affected"},{"version":"17.6.1a","status":"affected"},{"version":"17.6.1x","status":"affected"},{"version":"17.6.3","status":"affected"},{"version":"17.6.1y","status":"affected"},{"version":"17.6.1z","status":"affected"},{"version":"17.6.3a","status":"affected"},{"version":"17.6.4","status":"affected"},{"version":"17.6.1z1","status":"affected"},{"version":"17.6.5","status":"affected"},{"version":"17.6.6","status":"affected"},{"version":"17.6.6a","status":"affected"},{"version":"17.6.5a","status":"affected"},{"version":"17.6.7","status":"affected"},{"version":"17.6.8","status":"affected"},{"version":"17.6.8a","status":"affected"},{"version":"17.7.1","status":"affected"},{"version":"17.7.1a","status":"affected"},{"version":"17.7.1b","status":"affected"},{"version":"17.7.2","status":"affected"},{"version":"17.10.1","status":"affected"},{"version":"17.10.1a","status":"affected"},{"version":"17.10.1b","status":"affected"},{"version":"17.8.1","status":"affected"},{"version":"17.8.1a","status":"affected"},{"version":"17.9.1","status":"affected"},{"version":"17.9.1w","status":"affected"},{"version":"17.9.2","status":"affected"},{"version":"17.9.1a","status":"affected"},{"version":"17.9.1x","status":"affected"},{"version":"17.9.1y","status":"affected"},{"version":"17.9.3","status":"affected"},{"version":"17.9.2a","status":"affected"},{"version":"17.9.1x1","status":"affected"},{"version":"17.9.3a","status":"affected"},{"version":"17.9.4","status":"affected"},{"version":"17.9.1y1","status":"affected"},{"version":"17.9.5","status":"affected"},{"version":"17.9.4a","status":"affected"},{"version":"17.9.5a","status":"affected"},{"version":"17.9.5b","status":"affected"},{"version":"17.9.5e","status":"affected"},{"version":"17.9.5f","status":"affected"},{"version":"17.11.1","status":"affected"},{"version":"17.11.1a","status":"affected"},{"version":"17.12.1","status":"affected"},{"version":"17.12.1w","status":"affected"},{"version":"17.12.1a","status":"affected"},{"version":"17.12.1x","status":"affected"},{"version":"17.12.2","status":"affected"},{"version":"17.12.3","status":"affected"},{"version":"17.12.2a","status":"affected"},{"version":"17.12.1y","status":"affected"},{"version":"17.12.1z","status":"affected"},{"version":"17.12.4","status":"affected"},{"version":"17.12.3a","status":"affected"},{"version":"17.12.1z1","status":"affected"},{"version":"17.12.4a","status":"affected"},{"version":"17.12.4b","status":"affected"},{"version":"17.13.1","status":"affected"},{"version":"17.13.1a","status":"affected"},{"version":"17.14.1","status":"affected"},{"version":"17.14.1a","status":"affected"},{"version":"17.11.99SW","status":"affected"},{"version":"17.15.1","status":"affected"},{"version":"17.15.1w","status":"affected"},{"version":"17.15.1a","status":"affected"},{"version":"17.15.1b","status":"affected"}]}],"references":[{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ewlc-cdp-dos-fpeks9K","name":"cisco-sa-ewlc-cdp-dos-fpeks9K"}],"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"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-805","lang":"en","description":"Buffer Access with Incorrect Length Value","type":"cwe"}]}],"providerMetadata":{"shortName":"cisco","orgId":"d1c1063e-7a18-46af-9102-31f8928bc633","dateUpdated":"2025-05-07T17:35:14.380Z"},"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-ewlc-cdp-dos-fpeks9K","discovery":"INTERNAL","defects":["CSCwm14282"]}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-05-07T18:56:08.868665Z","id":"CVE-2025-20202","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-05-07T19:45:13.020Z"}}]}}}