---
id: CVE-2022-20764
title: Cisco RoomsOS Denial of Service Vulnerability
summary: >-
  Multiple vulnerabilities in the web engine of Cisco Telepresence CE Software
  and RoomOS Software could allow a remote attacker to cause a denial of service
  (DoS) condition, redirect users to an attacker controlled destination or view
  sensi…
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'
cvssSource: vendor
vendor: Cisco
product: Cisco RoomOS Software
affected:
  - roomos_software
  - telepresence_endpoint_software_tc_ce
published: '2022-05-04'
updated: '2022-05-06'
sourceUpdated: '2022-05-06T20:13:28+00:00'
source: CSAF
sourceUrl: >-
  https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ROS-DOS-X7H7XhkK
references:
  - url: >-
      https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ROS-DOS-X7H7XhkK
  - url: 'https://software.cisco.com'
tags:
  - csaf
  - vendor-advisory
  - cisco
epss: 0.01031
epssPercentile: 0.62271
ingestedAt: '2026-09-08T15:58:18.537Z'
---

## Overview

Multiple vulnerabilities in the web engine of Cisco Telepresence CE Software and RoomOS Software could allow a remote attacker to cause a denial of service (DoS) condition, redirect users to an attacker controlled destination or view sensitive data on an affected device.

For more information about these vulnerabilities, see the Details section of this advisory.

Cisco has released software updates that address these vulnerabilities. There are no workarounds that address these vulnerabilities.

This advisory is available at the following link:
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ROS-DOS-X7H7XhkK

## Vendor advisories

- **cisco-sa-ROS-DOS-X7H7XhkK** · Cisco · affected: Cisco RoomOS Software, Cisco TelePresence Endpoint Software (TC/CE) · updated 2022-05-06 · [advisory](https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ROS-DOS-X7H7XhkK)

**Cisco TelePresence Collaboration Endpoint and RoomOS Software Vulnerabilities**. Released 2022-05-04, updated 2022-05-06.

Affected:

- Cisco RoomOS Software
- Cisco TelePresence Endpoint Software (TC/CE)

## Remediation

Cisco has released software updates that address this vulnerability. https://software.cisco.com