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Cisco Security Advisoriescisco-sa-roomos-bof-vTMANZgu

Cisco RoomOS Stack Overflow Vulnerability

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. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. This advisory is available at the following link:https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-roomos-bof-vTMANZgu Security Impact Rating: Medium CVE: CVE-2026-20302

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MediumCVSS not listedMedium severity
Scope

What the vendor says is affected

The collected bulletin did not provide a separate affected-products list. Check the original bulletin before making an exposure decision.

Next step

What the vendor recommends

Cisco has released software updates that address this vulnerability.

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Timeline

When this advisory changed

  1. Published by Cisco

    The publication date reported by the vendor.

  2. Added to SecurityAlert

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  3. Confirmed at the source

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Vulnerabilities

CVEs named in this advisory

CVE-2026-20302View CVSS, KEV, EPSS, and threat context
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