Medium [CVE-2026-20302] Cisco RoomOS Stack Overflow Vulnerability
This medium-severity Cisco advisory covers CVE-2026-20302 affecting RoomOS Software.
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Summary
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.
Affected product named by the advisory: RoomOS Software.
- Scope: At the time of publication, this vulnerability affected Cisco RoomOS, regardless of device configuration.
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
Mitigation checklist
- There are no workarounds that address this vulnerability.
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
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