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TI-2020-02888 Aliases CVE-2020-3336GHSA-xm4r-pr55-hfw3

Cisco TelePresence Collaboration Endpoint and RoomOS Software Command Injection Vulnerability

Priority LOW 38CWE-78Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-78.

Summary

A vulnerability in the software upgrade process of Cisco TelePresence Collaboration Endpoint Software and Cisco RoomOS Software could allow an authenticated, remote attacker to modify the filesystem to cause a denial of service (DoS) or gain privileged access to the root filesystem. The vulnerability is due to insufficient input validation. An attacker with administrative privileges could exploit this vulnerability by sending requests with malformed parameters to the system using the console, Secure Shell (SSH), or web API. A successful exploit could allow the attacker to modify the device configuration or cause a DoS.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.02074 81st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
CiscoCisco TelePresence CE Softwareall versions—No fix listedCNA
  • Cisco TelePresence CE Software VendorCisco Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:cisco:roomos:-:*:*:*:*:*:*:*not specified by NVDVulnerableCisco
cpe:2.3:a:cisco:telepresence_collaboration_endpoint:*:*:*:*:*:*:*:*before 9.9.4; 9.10.0 – 9.10.2; 9.12.0 – 9.12.3VulnerableCisco
  • cpe:2.3:a:cisco:roomos:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Cisco
  • cpe:2.3:a:cisco:telepresence_collaboration_endpoint:*:*:*:*:*:*:*:* Versions before 9.9.4; 9.10.0 – 9.10.2; 9.12.0 – 9.12.3 Vulnerable ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-3336
  2. 2026-10-03 Alias added: GHSA-xm4r-pr55-hfw3

References

Advisory 1

  • TI-2019-11399 Cisco TelePresence Collaboration Endpoint, TelePresence Codec, and RoomOS Software Privilege Escalation Vulnerability CVSS 3.1HIGH 8.8
  • TI-2026-16365 Cisco RoomOS Security Hardening Release - Buffer Management Vulnerabilities CVSS 3.1CRITICAL 9.8
  • TI-2026-16366 Cisco RoomOS Security Hardening Release - Missing Encryption Vulnerabilities CVSS 3.1CRITICAL 9.8
  • TI-2022-05342 Cisco TelePresence Collaboration Endpoint and RoomOS Software H.323 Denial of Service Vulnerability CVSS 3.1HIGH 7.5
  • TI-2019-11400 Cisco TelePresence Collaboration Endpoint and RoomOS Software Denial of Service Vulnerabilities CVSS 3.1HIGH 7.5
  • TI-2026-16359 Cisco RoomOS Security Hardening Release - Access Control Vulnerabilities CVSS 3.1HIGH 8.8
See all 32 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences