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.

Metrics

No CVSS v4.0

Attack Vector Physical

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact total

Affected Vendors & Products

Vendors Products
Cisco
  • Cisco Roomos Software

No data.

No data.

References
Link Providers
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-roomos-bof-vTMANZgu cve-icon cve-icon
History

Thu, 20 Aug 2026 17:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Wed, 19 Aug 2026 18:45:00 +0000

Type Values Removed Values Added
First Time appeared Cisco
Cisco cisco Roomos Software
Vendors & Products Cisco
Cisco cisco Roomos Software

Wed, 19 Aug 2026 16:30:00 +0000

Type Values Removed Values Added
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 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.
Title Cisco RoomOS Stack Overflow Vulnerability
Weaknesses CWE-120
References
Metrics cvssV3_1

{'score': 6.1, 'vector': 'CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N'}
cve-icon MITRE

Status: PUBLISHED

Assigner: cisco

Published: 2026-08-19T16:17:07.749Z

Updated: 2026-08-20T15:57:08.625Z

Reserved: 2025-10-08T11:59:15.408Z

Link: CVE-2026-20302

cve-icon Vulnrichment

Updated: 2026-08-20T15:51:39.644Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-08-19T17:18:39.527

Modified: 2026-08-20T16:17:20.827

Link: CVE-2026-20302

cve-icon Redhat

No data.