{"api_version":"1","generated_at":"2026-09-11T03:19:41+00:00","cve":"CVE-2026-20302","urls":{"html":"https://cve.report/CVE-2026-20302","api":"https://cve.report/api/cve/CVE-2026-20302.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-20302","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-20302"},"summary":{"title":"Cisco RoomOS Stack Overflow Vulnerability","description":"A vulnerability in the USB driver of Cisco RoomOS could allow an unauthenticated, local attacker with physical access to the USB port on an affected device to execute arbitrary code with&nbsp;root privileges.\r\n\r\nThis vulnerability is due to insufficient boundary checks for specific data that is provided through the USB driver. An attacker could exploit this vulnerability by connecting a malicious USB device to an affected device. A successful exploit could allow the attacker to cause a buffer overflow condition on the affected system and execute arbitrary code with root privileges.","state":"PUBLISHED","assigner":"cisco","published_at":"2026-08-19 17:18:39","updated_at":"2026-08-20 16:17:20"},"problem_types":["CWE-120","CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')"],"metrics":[{"version":"3.1","source":"psirt@cisco.com","type":"Secondary","score":"6.1","severity":"MEDIUM","vector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","baseScore":6.1,"baseSeverity":"MEDIUM","attackVector":"PHYSICAL","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"NONE"}},{"version":"3.1","source":"CNA","type":"CVSSV3_1","score":"6.1","severity":"MEDIUM","vector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","data":{"attackComplexity":"LOW","attackVector":"PHYSICAL","availabilityImpact":"NONE","baseScore":6.1,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","version":"3.1"}}],"references":[{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-roomos-bof-vTMANZgu","name":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-roomos-bof-vTMANZgu","refsource":"psirt@cisco.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-20302","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-20302","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Cisco","product":"Cisco RoomOS Software","version":"affected RoomOS 10.11.2.2","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco RoomOS Software","version":"affected RoomOS 10.15.2.2","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco RoomOS Software","version":"affected RoomOS 11.5.4.6","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco RoomOS Software","version":"affected RoomOS 11.5.2.4","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco RoomOS Software","version":"affected RoomOS 10.8.2.5","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco RoomOS Software","version":"affected RoomOS 10.11.5.2","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco RoomOS Software","version":"affected RoomOS 10.11.3.0","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco RoomOS Software","version":"affected RoomOS 10.15.5.3","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco RoomOS Software","version":"affected RoomOS 10.19.2.2","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco RoomOS Software","version":"affected RoomOS 11.1.3.1","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco RoomOS Software","version":"affected RoomOS 10.11.6.0","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco RoomOS Software","version":"affected RoomOS 10.19.3.0","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco RoomOS Software","version":"affected RoomOS 10.19.4.2","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco RoomOS Software","version":"affected RoomOS 10.3.2.4","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco RoomOS Software","version":"affected RoomOS 10.3.4.0","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco RoomOS Software","version":"affected RoomOS 10.15.3.0","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco RoomOS Software","version":"affected RoomOS 11.1.4.1","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco RoomOS Software","version":"affected RoomOS 11.14.2.3","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco RoomOS Software","version":"affected RoomOS 11.1.2.4","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco RoomOS Software","version":"affected RoomOS 10.8.3.1","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco RoomOS Software","version":"affected RoomOS 11.14.2.1","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco RoomOS Software","version":"affected RoomOS 10.3.3.0","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco RoomOS Software","version":"affected RoomOS 10.8.4.0","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco RoomOS Software","version":"affected RoomOS 10.15.4.1","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco RoomOS Software","version":"affected RoomOS 10.19.5.6","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco RoomOS Software","version":"affected RoomOS 10.11.4.1","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco RoomOS Software","version":"affected RoomOS 11.9.3.1","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco RoomOS Software","version":"affected RoomOS 11.5.3.3","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco RoomOS Software","version":"affected RoomOS 10.3.2.0","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco RoomOS Software","version":"affected RoomOS 11.9.2.4","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco RoomOS Software","version":"affected RoomOS 11.14.3.0","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco RoomOS Software","version":"affected RoomOS 11.17.2.2","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco RoomOS Software","version":"affected RoomOS 11.14.4.0","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco RoomOS Software","version":"affected RoomOS 10.19 StepUpg","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco RoomOS Software","version":"affected RoomOS 11.17.3.0","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco RoomOS Software","version":"affected RoomOS 11.20.2.3","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco RoomOS Software","version":"affected RoomOS 11.14.5.0","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco RoomOS Software","version":"affected RoomOS 11.17.4.0","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco RoomOS Software","version":"affected RoomOS 11.20.3.0","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco RoomOS Software","version":"affected RoomOS 11.23.1.6","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco RoomOS Software","version":"affected RoomOS 11.23.1.8","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco RoomOS Software","version":"affected RoomOS 11.24.1.5","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco RoomOS Software","version":"affected RoomOS 11.24.2.4","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco RoomOS Software","version":"affected RoomOS 11.24.3.0","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco RoomOS Software","version":"affected RoomOS 11.24.4.1","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco RoomOS Software","version":"affected RoomOS 11.27.2.0","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco RoomOS Software","version":"affected RoomOS 11.28.1.3","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco RoomOS Software","version":"affected RoomOS 11.27.3.0","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco RoomOS Software","version":"affected RoomOS 11.31.1.5","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco RoomOS Software","version":"affected RoomOS 11.27.4.0","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco RoomOS Software","version":"affected RoomOS 11.32.2.1","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco RoomOS Software","version":"affected RoomOS 11.33.1.7","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco RoomOS Software","version":"affected RoomOS 26.0.1.2","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco RoomOS Software","version":"affected RoomOS 11.34.1.2","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco RoomOS Software","version":"affected RoomOS 11.32.3.0","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco RoomOS Software","version":"affected RoomOS 11.27.5.0","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco RoomOS Software","version":"affected RoomOS 11.32.4.0","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco RoomOS Software","version":"affected RoomOS 26.1.1.5","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco RoomOS Software","version":"affected RoomOS 11.35.1.2","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco RoomOS Software","version":"affected RoomOS 26.2.2.2","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco RoomOS Software","version":"affected RoomOS 11.32.5.1","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco RoomOS Software","version":"affected RoomOS 26.4.1.6","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco RoomOS Software","version":"affected RoomOS 26.4.1.4","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco RoomOS Software","version":"affected RoomOS 26.3.1.3","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco RoomOS Software","version":"affected RoomOS 11.36.1.1","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco RoomOS Software","version":"affected RoomOS 11.37.1.0","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco RoomOS Software","version":"affected RoomOS 26.5.2.0","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco RoomOS Software","version":"affected RoomOS 26.5.2.2","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco RoomOS Software","version":"affected RoomOS 26.6.1.4","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco RoomOS Software","version":"affected RoomOS 11.38.1.1","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco RoomOS Software","version":"affected RoomOS 11.32.6.0","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco RoomOS Software","version":"affected RoomOS 11.39.1.1","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[{"source":"CNA","title":"","value":"The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerabilities that are described in this advisory.","time":"","lang":"en"}],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"20302","cve":"CVE-2026-20302","epss":"0.001840000","percentile":"0.082770000","score_date":"2026-08-23","updated_at":"2026-08-24 00:11:17"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"metrics":[{"other":{"content":{"id":"CVE-2026-20302","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","timestamp":"2026-08-20T15:40:09.736009Z","version":"2.0.3"},"type":"ssvc"}}],"providerMetadata":{"dateUpdated":"2026-08-20T15:57:08.625Z","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP"},"title":"CISA ADP Vulnrichment"}],"cna":{"affected":[{"defaultStatus":"unknown","product":"Cisco RoomOS Software","vendor":"Cisco","versions":[{"status":"affected","version":"RoomOS 10.11.2.2"},{"status":"affected","version":"RoomOS 10.15.2.2"},{"status":"affected","version":"RoomOS 11.5.4.6"},{"status":"affected","version":"RoomOS 11.5.2.4"},{"status":"affected","version":"RoomOS 10.8.2.5"},{"status":"affected","version":"RoomOS 10.11.5.2"},{"status":"affected","version":"RoomOS 10.11.3.0"},{"status":"affected","version":"RoomOS 10.15.5.3"},{"status":"affected","version":"RoomOS 10.19.2.2"},{"status":"affected","version":"RoomOS 11.1.3.1"},{"status":"affected","version":"RoomOS 10.11.6.0"},{"status":"affected","version":"RoomOS 10.19.3.0"},{"status":"affected","version":"RoomOS 10.19.4.2"},{"status":"affected","version":"RoomOS 10.3.2.4"},{"status":"affected","version":"RoomOS 10.3.4.0"},{"status":"affected","version":"RoomOS 10.15.3.0"},{"status":"affected","version":"RoomOS 11.1.4.1"},{"status":"affected","version":"RoomOS 11.14.2.3"},{"status":"affected","version":"RoomOS 11.1.2.4"},{"status":"affected","version":"RoomOS 10.8.3.1"},{"status":"affected","version":"RoomOS 11.14.2.1"},{"status":"affected","version":"RoomOS 10.3.3.0"},{"status":"affected","version":"RoomOS 10.8.4.0"},{"status":"affected","version":"RoomOS 10.15.4.1"},{"status":"affected","version":"RoomOS 10.19.5.6"},{"status":"affected","version":"RoomOS 10.11.4.1"},{"status":"affected","version":"RoomOS 11.9.3.1"},{"status":"affected","version":"RoomOS 11.5.3.3"},{"status":"affected","version":"RoomOS 10.3.2.0"},{"status":"affected","version":"RoomOS 11.9.2.4"},{"status":"affected","version":"RoomOS 11.14.3.0"},{"status":"affected","version":"RoomOS 11.17.2.2"},{"status":"affected","version":"RoomOS 11.14.4.0"},{"status":"affected","version":"RoomOS 10.19 StepUpg"},{"status":"affected","version":"RoomOS 11.17.3.0"},{"status":"affected","version":"RoomOS 11.20.2.3"},{"status":"affected","version":"RoomOS 11.14.5.0"},{"status":"affected","version":"RoomOS 11.17.4.0"},{"status":"affected","version":"RoomOS 11.20.3.0"},{"status":"affected","version":"RoomOS 11.23.1.6"},{"status":"affected","version":"RoomOS 11.23.1.8"},{"status":"affected","version":"RoomOS 11.24.1.5"},{"status":"affected","version":"RoomOS 11.24.2.4"},{"status":"affected","version":"RoomOS 11.24.3.0"},{"status":"affected","version":"RoomOS 11.24.4.1"},{"status":"affected","version":"RoomOS 11.27.2.0"},{"status":"affected","version":"RoomOS 11.28.1.3"},{"status":"affected","version":"RoomOS 11.27.3.0"},{"status":"affected","version":"RoomOS 11.31.1.5"},{"status":"affected","version":"RoomOS 11.27.4.0"},{"status":"affected","version":"RoomOS 11.32.2.1"},{"status":"affected","version":"RoomOS 11.33.1.7"},{"status":"affected","version":"RoomOS 26.0.1.2"},{"status":"affected","version":"RoomOS 11.34.1.2"},{"status":"affected","version":"RoomOS 11.32.3.0"},{"status":"affected","version":"RoomOS 11.27.5.0"},{"status":"affected","version":"RoomOS 11.32.4.0"},{"status":"affected","version":"RoomOS 26.1.1.5"},{"status":"affected","version":"RoomOS 11.35.1.2"},{"status":"affected","version":"RoomOS 26.2.2.2"},{"status":"affected","version":"RoomOS 11.32.5.1"},{"status":"affected","version":"RoomOS 26.4.1.6"},{"status":"affected","version":"RoomOS 26.4.1.4"},{"status":"affected","version":"RoomOS 26.3.1.3"},{"status":"affected","version":"RoomOS 11.36.1.1"},{"status":"affected","version":"RoomOS 11.37.1.0"},{"status":"affected","version":"RoomOS 26.5.2.0"},{"status":"affected","version":"RoomOS 26.5.2.2"},{"status":"affected","version":"RoomOS 26.6.1.4"},{"status":"affected","version":"RoomOS 11.38.1.1"},{"status":"affected","version":"RoomOS 11.32.6.0"},{"status":"affected","version":"RoomOS 11.39.1.1"}]}],"descriptions":[{"lang":"en","value":"A vulnerability in the USB driver of Cisco RoomOS could allow an unauthenticated, local attacker with physical access to the USB port on an affected device to execute arbitrary code with&nbsp;root privileges.\r\n\r\nThis vulnerability is due to insufficient boundary checks for specific data that is provided through the USB driver. An attacker could exploit this vulnerability by connecting a malicious USB device to an affected device. A successful exploit could allow the attacker to cause a buffer overflow condition on the affected system and execute arbitrary code with root privileges."}],"exploits":[{"lang":"en","value":"The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerabilities that are described in this advisory."}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"PHYSICAL","availabilityImpact":"NONE","baseScore":6.1,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","version":"3.1"},"format":"cvssV3_1"}],"problemTypes":[{"descriptions":[{"cweId":"CWE-120","description":"Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')","lang":"en","type":"cwe"}]}],"providerMetadata":{"dateUpdated":"2026-08-19T16:17:07.749Z","orgId":"d1c1063e-7a18-46af-9102-31f8928bc633","shortName":"cisco"},"references":[{"name":"cisco-sa-roomos-bof-vTMANZgu","url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-roomos-bof-vTMANZgu"}],"source":{"advisory":"cisco-sa-roomos-bof-vTMANZgu","defects":["CSCwu31332"],"discovery":"EXTERNAL"},"title":"Cisco RoomOS Stack Overflow Vulnerability"}},"cveMetadata":{"assignerOrgId":"d1c1063e-7a18-46af-9102-31f8928bc633","assignerShortName":"cisco","cveId":"CVE-2026-20302","datePublished":"2026-08-19T16:17:07.749Z","dateReserved":"2025-10-08T11:59:15.408Z","dateUpdated":"2026-08-20T15:57:08.625Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-08-19 17:18:39","lastModifiedDate":"2026-08-20 16:17:20","problem_types":["CWE-120","CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')"],"metrics":{"cvssMetricV31":[{"source":"psirt@cisco.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","baseScore":6.1,"baseSeverity":"MEDIUM","attackVector":"PHYSICAL","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"NONE"},"exploitabilityScore":0.9,"impactScore":5.2}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-08-20T15:40:09.736009Z","id":"CVE-2026-20302","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"20302","Ordinal":"1","Title":"Cisco RoomOS Stack Overflow Vulnerability","CVE":"CVE-2026-20302","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"20302","Ordinal":"1","NoteData":"A vulnerability in the USB driver of Cisco RoomOS could allow an unauthenticated, local attacker with physical access to the USB port on an affected device to execute arbitrary code with&nbsp;root privileges.\r\n\r\nThis vulnerability is due to insufficient boundary checks for specific data that is provided through the USB driver. An attacker could exploit this vulnerability by connecting a malicious USB device to an affected device. A successful exploit could allow the attacker to cause a buffer overflow condition on the affected system and execute arbitrary code with root privileges.","Type":"Description","Title":"Cisco RoomOS Stack Overflow Vulnerability"}]}}}