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

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.

Timeline

Scores

EPSS (exploitation in 30 days)

0.43% · top 62% of all CVEs (13 Nov 2026)

CISA SSVC

Exploitation: none · Automatable: yes · Technical impact: partial

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.

Affected products

• Cisco · Cisco RoomOS Software

  • affected RoomOS 10.11.2.2
  • affected RoomOS 10.15.2.2
  • affected RoomOS 11.5.4.6
  • affected RoomOS 11.5.2.4
  • affected RoomOS 10.8.2.5
  • affected RoomOS 10.11.5.2
  • affected RoomOS 10.11.3.0
  • affected RoomOS 10.15.5.3
  • affected RoomOS 10.19.2.2
  • affected RoomOS 11.1.3.1
  • affected RoomOS 10.11.6.0
  • affected RoomOS 10.19.3.0
  • affected RoomOS 10.19.4.2
  • affected RoomOS 10.3.2.4
  • affected RoomOS 10.3.4.0
  • affected RoomOS 10.15.3.0
  • affected RoomOS 11.1.4.1
  • affected RoomOS 11.14.2.3
  • affected RoomOS 11.1.2.4
  • affected RoomOS 10.8.3.1
  • affected RoomOS 11.14.2.1
  • affected RoomOS 10.3.3.0
  • affected RoomOS 10.8.4.0
  • affected RoomOS 10.15.4.1
  • affected RoomOS 10.19.5.6
  • affected RoomOS 10.11.4.1
  • affected RoomOS 11.9.3.1
  • affected RoomOS 11.5.3.3
  • affected RoomOS 10.3.2.0
  • affected RoomOS 11.9.2.4
  • affected RoomOS 11.14.3.0
  • affected RoomOS 11.17.2.2
  • affected RoomOS 11.14.4.0
  • affected RoomOS 10.19 StepUpg
  • affected RoomOS 11.17.3.0
  • affected RoomOS 11.20.2.3
  • affected RoomOS 11.14.5.0
  • affected RoomOS 11.17.4.0
  • affected RoomOS 11.20.3.0
  • affected RoomOS 11.23.1.6
  • and 11 more

• Cisco · Cisco TelePresence Endpoint Software (TC/CE)

  • affected CE9.3.0
  • affected CE9.10.2
  • affected CE9.2.6
  • affected CE9.5.0
  • affected CE9.3.3
  • affected CE9.1.4
  • affected CE9.3.2
  • affected CE9.4.2
  • affected CE9.3.1
  • affected CE9.2.5
  • affected CE9.9.3
  • affected CE9.5.3
  • affected CE9.10.3
  • affected CE9.1.5
  • affected CE9.5.2
  • affected CE9.4.1
  • affected CE9.6.1
  • affected CE9.2.4
  • affected CE9.5.1
  • affected CE9.10.1
  • affected CE9.1.2
  • affected CE9.1.1
  • affected CE9.9.4
  • affected CE9.2.1
  • affected CE9.1.3
  • affected CE9.0.1
  • affected CE9.1.6
  • affected CE9.2.2
  • affected CE9.4.0
  • affected CE9.10.0
  • affected CE9.2.3
  • affected CE9.12.3
  • affected CE9.15.18.4
  • affected CE9.15.3.14
  • affected CE9.15.18.6

What to do

Exploitation: The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• EUVD EUVD-2026-5422 (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2026-20119](https://cveledger.app/badge/CVE-2026-20119.svg)](https://cveledger.app/cve/CVE-2026-20119)

Record last updated 12 Feb 2026, 18:49 UTC.