CVE-2026-20302

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 root privileges. This 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.

CVSS v3 6.1 MEDIUM

6.1^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 0.9 / Impact : 5.2

Attack Vector PHYSICAL

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-roomos-bof-vTMANZgu

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-19 17:18

Updated : 2026-08-20 16:17

NVD link : CVE-2026-20302

Mitre link : CVE-2026-20302

CVE.ORG link : CVE-2026-20302

JSON object : View

Products Affected

No product.

CWE

CWE-120

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

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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"}], "defaultStatus": "unknown"}]}], "published": "2026-08-19T17:18:39.527", "references": [{"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-roomos-bof-vTMANZgu", "source": "psirt@cisco.com"}], "vulnStatus": "Awaiting Analysis", "weaknesses": [{"type": "Secondary", "source": "psirt@cisco.com", "description": [{"lang": "en", "value": "CWE-120"}]}], "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 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."}], "lastModified": "2026-08-20T16:17:20.827", "sourceIdentifier": "psirt@cisco.com"}