CVE-2026-20119 HIGH

CVE-2026-20119: Cisco TelePresence Collaboration Endpoint Software and RoomOS Software Denial of Service Vulnerability

Vendor Cisco
Product Cisco RoomOS Software
Weakness CWE-1287
Published February 4, 2026
Last update February 12, 2026

CVSS base score

7.5/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

What the vulnerability does

01Description

A vulnerability in the text rendering subsystem of Cisco TelePresence Collaboration Endpoint (CE) Software and Cisco RoomOS Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to insufficient validation of input received by an affected device. An attacker could exploit this vulnerability by getting the affected device to render crafted text, for example, a crafted meeting invitation. As indicated in the CVSS score, no user interaction is required, such as accepting the meeting invitation. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition.

Key dates

02Disclosure timeline

February 4, 2026 CVE published
February 12, 2026 Record updated