CVE-2026-20302CWE-120

CVE-2026-20302

Medium · published August 19, 2026

CVSS v3.1
6.1
EPSS
0%
Percentile
7.6
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.1 · MEDIUM
Vector
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00184 · 7.6th percentile
Weakness
CWE-120 · Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Published
2026-08-19T21:18Z
References (1)
EPSS history
Timeline
  • 19 AUG 16:17Z
    Cisco RoomOS Stack Overflow Vulnerability
    cvelistv5