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TI-2023-06915 Aliases CVE-2023-20209GHSA-fqmx-hq6j-36x9

Code injection in Cisco TelePresence Video Communication Server Expressway

Priority HIGH 67CWE-94Published · 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-94.

Summary

A vulnerability in the web-based management interface of Cisco Expressway Series and Cisco TelePresence Video Communication Server (VCS) could allow an authenticated, remote attacker with read-write privileges on the application to perform a command injection attack that could result in remote code execution on an affected device. This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by sending a crafted request to the web-based management interface of an affected device. A successful exploit could allow the attacker to establish a remote shell with root privileges.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.3951 98th 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
Poc
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 Video Communication Server (VCS) ExpresswayX8.5.1; X8.5.3; X8.5; X8.6.1; X8.6; X8.1.1; X8.1.2; X8.1; X8.2.1; X8.2.2; X8.2; X8.7.1; X8.7.2; X8.7.3; X8.7; X8.8.1; X8.8.2; X8.8.3; X8.8; X8.9.1; X8.9.2; X8.9; X8.10.0; X8.10.1; X8.10.2; X8.10.3; X8.10.4; X12.5.8; X12.5.9; X12.5.0; X12.5.2; X12.5.7; X12.5.3; X12.5.4; X12.5.5; X12.5.1; X12.5.6; X12.6.0; X12.6.1; X12.6.2; X12.6.3; X12.6.4; X12.7.0; X12.7.1; X8.11.1; X8.11.2; X8.11.4; X8.11.3; X8.11.0; X14.0.1; X14.0.3; X14.0.2; X14.0.4; X14.0.5; X14.0.6; X14.0.7; X14.0.8; X14.0.9; X14.0.10; X14.0.11; X14.2.1; X14.2.2; X14.2.5; X14.2.6; X14.2.0; X14.2.7; X14.3.0—No fix listedCNA
  • Cisco TelePresence Video Communication Server (VCS) Expressway VendorCisco Affected X8.5.1; X8.5.3; X8.5; X8.6.1; X8.6; X8.1.1; X8.1.2; X8.1; X8.2.1; X8.2.2; X8.2; X8.7.1; X8.7.2; X8.7.3; X8.7; X8.8.1; X8.8.2; X8.8.3; X8.8; X8.9.1; X8.9.2; X8.9; X8.10.0; X8.10.1; X8.10.2; X8.10.3; X8.10.4; X12.5.8; X12.5.9; X12.5.0; X12.5.2; X12.5.7; X12.5.3; X12.5.4; X12.5.5; X12.5.1; X12.5.6; X12.6.0; X12.6.1; X12.6.2; X12.6.3; X12.6.4; X12.7.0; X12.7.1; X8.11.1; X8.11.2; X8.11.4; X8.11.3; X8.11.0; X14.0.1; X14.0.3; X14.0.2; X14.0.4; X14.0.5; X14.0.6; X14.0.7; X14.0.8; X14.0.9; X14.0.10; X14.0.11; X14.2.1; X14.2.2; X14.2.5; X14.2.6; X14.2.0; X14.2.7; X14.3.0 Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:cisco:telepresence_video_communication_server:*:*:*:*:*:*:*:*before 14.3.1VulnerableCisco
cpe:2.3:a:cisco:telepresence_video_communication_server:*:*:*:*:expressway:*:*:*before 14.3.1VulnerableCisco
  • cpe:2.3:a:cisco:telepresence_video_communication_server:*:*:*:*:*:*:*:* Versions before 14.3.1 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:telepresence_video_communication_server:*:*:*:*:expressway:*:*:* Versions before 14.3.1 Vulnerable ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-20209
  2. 2026-10-03 Alias added: GHSA-fqmx-hq6j-36x9

References

Advisory 1

  • TI-2023-23979 The HTTP/2 protocol allows a denial of service (server resource consumption) because… KEVCVSS 3.1HIGH 7.5
  • TI-2019-01468 Improper input validation in Cisco TelePresence Video Communication Server CVSS 3.0HIGH 8.6
  • TI-2022-05314 Cisco Expressway Series and Cisco TelePresence Video Communication Server Vulnerabilities CVSS 3.1CRITICAL 9.0
  • TI-2022-05313 Cisco Expressway Series and Cisco TelePresence Video Communication Server Vulnerabilities CVSS 3.1CRITICAL 9.0
  • TI-2022-05371 Cisco Expressway Series and Cisco TelePresence Video Communication Server Vulnerabilities CVSS 3.1CRITICAL 9.0
  • TI-2018-00368 Improper input validation in Cisco Unified Communications Manager IM & Presence Service CVSS 3.1HIGH 7.5
See all 41 →

Sources

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