{"id":"CVE-2025-20221","state":"PUBLISHED","title":"A vulnerability in the packet filtering features of Cisco IOS XE SD-WAN Software could allow an unauthenticated, remote attacker to bypass Layer 3 and Layer 4 traffic filters. \r","description":"A vulnerability in the packet filtering features of Cisco IOS XE SD-WAN Software could allow an unauthenticated, remote attacker to bypass Layer 3 and Layer 4 traffic filters. \r\n\r This vulnerability is due to improper traffic filtering conditions on an affected device. An attacker could exploit this vulnerability by sending a crafted packet to the affected device. A successful exploit could allow the attacker to bypass the Layer 3 and Layer 4 traffic filters and inject a crafted packet into the network.","publishedAt":"2025-05-07T17:38:49.862Z","updatedAt":"2025-05-07T19:41:59.096Z","severity":{"score":5.3,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","source":"cisco"},"assigner":"cisco","products":["Cisco Cisco IOS XE Software"],"affected":[{"vendor":"Cisco","product":"Cisco IOS XE Software","versions":[{"version":"16.12.13","status":"affected"},{"version":"17.1.1","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":"17.3.2a","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":"17.3.7","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":"17.5.1","status":"affected"},{"version":"17.5.1a","status":"affected"},{"version":"17.6.1","status":"affected"},{"version":"17.6.2","status":"affected"},{"version":"17.6.1a","status":"affected"},{"version":"17.6.3","status":"affected"},{"version":"17.6.1y","status":"affected"},{"version":"17.6.3a","status":"affected"},{"version":"17.6.4","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":"17.7.2","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":"17.9.2","status":"affected"},{"version":"17.9.1a","status":"affected"},{"version":"17.9.3","status":"affected"},{"version":"17.9.2a","status":"affected"},{"version":"17.9.3a","status":"affected"},{"version":"17.9.4","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":"17.9.6","status":"affected"},{"version":"17.9.6a","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":"17.12.1a","status":"affected"},{"version":"17.12.2","status":"affected"},{"version":"17.12.3","status":"affected"},{"version":"17.12.4","status":"affected"},{"version":"17.12.3a","status":"affected"},{"version":"17.12.1z2","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":"17.15.1","status":"affected"},{"version":"17.15.1a","status":"affected"},{"version":"17.15.2","status":"affected"},{"version":"17.15.1x","status":"affected"},{"version":"17.15.2c","status":"affected"},{"version":"17.15.2b","status":"affected"},{"version":"17.16.1","status":"affected"},{"version":"17.16.1a","status":"affected"}]}],"references":["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-snmp-bypass-HHUVujdn"],"weaknesses":["CWE-200"],"ingestedAt":"2026-10-29T20:08:39.238Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/20xxx/CVE-2025-20221.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2025-20221","state":"PUBLISHED","datePublished":"2025-05-07T17:38:49.862Z","dateUpdated":"2025-05-07T19:41:59.096Z","assignerShortName":"cisco","assignerOrgId":"d1c1063e-7a18-46af-9102-31f8928bc633","dateReserved":"2024-10-10T19:15:13.233Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"A vulnerability in the packet filtering features of Cisco IOS XE SD-WAN Software could allow an unauthenticated, remote attacker to bypass Layer 3 and Layer 4 traffic filters. \r\n\r This vulnerability is due to improper traffic filtering conditions on an affected device. An attacker could exploit this vulnerability by sending a crafted packet to the affected device. A successful exploit could allow the attacker to bypass the Layer 3 and Layer 4 traffic filters and inject a crafted packet into the network."}],"affected":[{"vendor":"Cisco","product":"Cisco IOS XE Software","versions":[{"version":"16.12.13","status":"affected"},{"version":"17.1.1","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":"17.3.2a","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":"17.3.7","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":"17.5.1","status":"affected"},{"version":"17.5.1a","status":"affected"},{"version":"17.6.1","status":"affected"},{"version":"17.6.2","status":"affected"},{"version":"17.6.1a","status":"affected"},{"version":"17.6.3","status":"affected"},{"version":"17.6.1y","status":"affected"},{"version":"17.6.3a","status":"affected"},{"version":"17.6.4","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":"17.7.2","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":"17.9.2","status":"affected"},{"version":"17.9.1a","status":"affected"},{"version":"17.9.3","status":"affected"},{"version":"17.9.2a","status":"affected"},{"version":"17.9.3a","status":"affected"},{"version":"17.9.4","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":"17.9.6","status":"affected"},{"version":"17.9.6a","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":"17.12.1a","status":"affected"},{"version":"17.12.2","status":"affected"},{"version":"17.12.3","status":"affected"},{"version":"17.12.4","status":"affected"},{"version":"17.12.3a","status":"affected"},{"version":"17.12.1z2","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":"17.15.1","status":"affected"},{"version":"17.15.1a","status":"affected"},{"version":"17.15.2","status":"affected"},{"version":"17.15.1x","status":"affected"},{"version":"17.15.2c","status":"affected"},{"version":"17.15.2b","status":"affected"},{"version":"17.16.1","status":"affected"},{"version":"17.16.1a","status":"affected"}]}],"references":[{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-snmp-bypass-HHUVujdn","name":"cisco-sa-snmp-bypass-HHUVujdn"}],"metrics":[{"format":"cvssV3_1","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","baseScore":5.3,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"LOW","integrityImpact":"NONE","availabilityImpact":"NONE"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-200","lang":"en","description":"Exposure of Sensitive Information to an Unauthorized Actor","type":"cwe"}]}],"providerMetadata":{"shortName":"cisco","orgId":"d1c1063e-7a18-46af-9102-31f8928bc633","dateUpdated":"2025-05-07T17:38:49.862Z"},"exploits":[{"lang":"en","value":"The Cisco Product Security Incident Response Team (PSIRT) is aware that proof-of-concept exploit code is available for the vulnerability described in this advisory.\r\n\r\nThe Cisco PSIRT is not aware of any malicious use of the vulnerability that is described in this advisory."}],"source":{"advisory":"cisco-sa-snmp-bypass-HHUVujdn","discovery":"EXTERNAL","defects":["CSCwn25087"]}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-05-07T18:56:50.900282Z","id":"CVE-2025-20221","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-05-07T19:41:59.096Z"}}]}}}