{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-20110","assignerOrgId":"d1c1063e-7a18-46af-9102-31f8928bc633","state":"PUBLISHED","assignerShortName":"cisco","dateReserved":"2025-10-08T11:59:15.374Z","datePublished":"2026-03-25T16:06:24.675Z","dateUpdated":"2026-03-27T15:01:27.694Z"},"containers":{"cna":{"providerMetadata":{"orgId":"d1c1063e-7a18-46af-9102-31f8928bc633","shortName":"cisco","dateUpdated":"2026-03-25T16:06:24.675Z"},"descriptions":[{"lang":"en","value":"A vulnerability in the CLI of Cisco IOS XE Software could allow an authenticated, local attacker to cause a denial of service (DoS) condition on an affected device.\r\n\r This vulnerability exists because incorrect privileges are associated with the start maintenance command. An attacker could exploit this vulnerability by accessing the management CLI of the affected device as a low-privileged user and using the start maintenance command. A successful exploit could allow the attacker to put the device in maintenance mode, which shuts down interfaces, resulting in a denial of service (DoS) condition. In case of exploitation, a device administrator can connect to the CLI and use the stop maintenance command to restore operations."}],"affected":[{"vendor":"Cisco","product":"Cisco IOS XE Software","versions":[{"version":"16.6.1","status":"affected"},{"version":"16.6.2","status":"affected"},{"version":"16.6.3","status":"affected"},{"version":"16.6.4","status":"affected"},{"version":"16.6.5","status":"affected"},{"version":"16.6.4a","status":"affected"},{"version":"16.6.5a","status":"affected"},{"version":"16.6.6","status":"affected"},{"version":"16.6.7","status":"affected"},{"version":"16.6.8","status":"affected"},{"version":"16.6.9","status":"affected"},{"version":"16.6.10","status":"affected"},{"version":"16.7.1","status":"affected"},{"version":"16.7.1a","status":"affected"},{"version":"16.7.1b","status":"affected"},{"version":"16.7.2","status":"affected"},{"version":"16.7.3","status":"affected"},{"version":"16.7.4","status":"affected"},{"version":"16.8.1","status":"affected"},{"version":"16.8.1a","status":"affected"},{"version":"16.8.1b","status":"affected"},{"version":"16.8.1s","status":"affected"},{"version":"16.8.1c","status":"affected"},{"version":"16.8.1d","status":"affected"},{"version":"16.8.2","status":"affected"},{"version":"16.8.1e","status":"affected"},{"version":"16.8.3","status":"affected"},{"version":"16.9.1","status":"affected"},{"version":"16.9.2","status":"affected"},{"version":"16.9.1a","status":"affected"},{"version":"16.9.1b","status":"affected"},{"version":"16.9.1s","status":"affected"},{"version":"16.9.3","status":"affected"},{"version":"16.9.4","status":"affected"},{"version":"16.9.3a","status":"affected"},{"version":"16.9.5","status":"affected"},{"version":"16.9.5f","status":"affected"},{"version":"16.9.6","status":"affected"},{"version":"16.9.7","status":"affected"},{"version":"16.9.8","status":"affected"},{"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":"16.12.13","status":"affected"},{"version":"16.12.14","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":"17.9.6","status":"affected"},{"version":"17.9.6a","status":"affected"},{"version":"17.9.7","status":"affected"},{"version":"17.9.5e","status":"affected"},{"version":"17.9.5f","status":"affected"},{"version":"17.9.8","status":"affected"},{"version":"17.9.7a","status":"affected"},{"version":"17.9.7b","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":"17.12.1z2","status":"affected"},{"version":"17.12.4a","status":"affected"},{"version":"17.12.5","status":"affected"},{"version":"17.12.4b","status":"affected"},{"version":"17.12.1z3","status":"affected"},{"version":"17.12.5a","status":"affected"},{"version":"17.12.1z4","status":"affected"},{"version":"17.12.6","status":"affected"},{"version":"17.12.5b","status":"affected"},{"version":"17.12.5c","status":"affected"},{"version":"17.12.6a","status":"affected"},{"version":"17.12.5d","status":"affected"},{"version":"17.12.6b","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":"17.15.1w","status":"affected"},{"version":"17.15.1a","status":"affected"},{"version":"17.15.2","status":"affected"},{"version":"17.15.1b","status":"affected"},{"version":"17.15.1x","status":"affected"},{"version":"17.15.1z","status":"affected"},{"version":"17.15.3","status":"affected"},{"version":"17.15.2c","status":"affected"},{"version":"17.15.2a","status":"affected"},{"version":"17.15.1y","status":"affected"},{"version":"17.15.2b","status":"affected"},{"version":"17.15.3a","status":"affected"},{"version":"17.15.4","status":"affected"},{"version":"17.15.3b","status":"affected"},{"version":"17.15.4d","status":"affected"},{"version":"17.15.4e","status":"affected"},{"version":"17.16.1","status":"affected"},{"version":"17.16.1a","status":"affected"},{"version":"17.17.1","status":"affected"},{"version":"17.18.1","status":"affected"},{"version":"17.18.1w","status":"affected"},{"version":"17.18.1a","status":"affected"}]}],"problemTypes":[{"descriptions":[{"lang":"en","description":"Incorrect Privilege Assignment","type":"cwe","cweId":"CWE-266"}]}],"references":[{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-mntc-dos-LZweQcyq","name":"cisco-sa-iosxe-mntc-dos-LZweQcyq"}],"metrics":[{"format":"cvssV3_1","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H","baseScore":6.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"}}],"exploits":[{"lang":"en","value":"The Cisco Product Security Incident Response Team (PSIRT) is aware that a public announcement is available for the vulnerability that is 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-iosxe-mntc-dos-LZweQcyq","discovery":"EXTERNAL","defects":["CSCwq22014"]}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-03-27T15:01:22.266770Z","id":"CVE-2026-20110","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":"2026-03-27T15:01:27.694Z"}}]}}