Read the docs
TI-2021-13756 Aliases CVE-2021-34758GHSA-m9hj-8j64-3cfq

Cisco TelePresence Collaboration Endpoint and RoomOS Software Denial of Service Vulnerability

Priority LOW 20CWE-732Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · Low · Low
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

A vulnerability in the memory management of Cisco TelePresence Collaboration Endpoint (CE) Software and Cisco RoomOS Software could allow an authenticated, local attacker to corrupt a shared memory segment, resulting in a denial of service (DoS) condition. This vulnerability is due to insufficient access controls to a shared memory resource. An attacker could exploit this vulnerability by corrupting a shared memory segment on an affected device. A successful exploit could allow the attacker to cause the device to reload. The device will recover from the corruption upon reboot.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00186 8th 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
Partial

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 RoomOS Softwareall versions—No fix listedCNA
  • Cisco RoomOS Software VendorCisco Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:cisco:telepresence_collaboration_endpoint:*:*:*:*:*:*:*:*before 10.7.2VulnerableCisco
cpe:2.3:o:cisco:roomos:*:*:*:*:*:*:*:*before 10.7.1.2VulnerableCisco
  • cpe:2.3:a:cisco:telepresence_collaboration_endpoint:*:*:*:*:*:*:*:* Versions before 10.7.2 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:roomos:*:*:*:*:*:*:*:* Versions before 10.7.1.2 Vulnerable ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-34758
  2. 2026-10-03 Alias added: GHSA-m9hj-8j64-3cfq

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