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CVE-2026-20302 is a buffer overflow vulnerability in the USB driver of Cisco RoomOS software. It allows an unauthenticated local attacker with physical access to the USB port to execute arbitrary code with root privileges by connecting a malicious USB device. The flaw arises from insufficient boundary checks on data provided through the USB driver.

This vulnerability in Cisco RoomOS software's USB driver involves a classic buffer overflow caused by inadequate size checks on input data. An attacker with physical access can exploit this by connecting a malicious USB device, triggering a buffer overflow that enables arbitrary code execution with root privileges. The CVSS 3.1 score is 6.1 (medium severity), reflecting the requirement for physical access and lack of user interaction.

Detailed information about CVE-2026-20302: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') in Cisco Cisco RoomOS Software affecting Cisco

CVE-2026-20302: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') in Cisco Cisco RoomOS Software - Live Threat Intelligence - Threat Radar | OffSeq.com

CVE-2026-20302: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') in Cisco Cisco RoomOS Software

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