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TI-2018-00368 Aliases CVE-2018-0409GHSA-qqxj-4rg7-qpmv

Improper input validation in Cisco Unified Communications Manager IM & Presence Service

Priority MEDIUM 45CWE-20Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-125 and the CVSS impact.

Summary

A vulnerability in the XCP Router service of the Cisco Unified Communications Manager IM & Presence Service (CUCM IM&P) and the Cisco TelePresence Video Communication Server (VCS) and Expressway could allow an unauthenticated, remote attacker to cause a temporary service outage for all IM&P users, resulting in a denial of service (DoS) condition. The vulnerability is due to improper validation of user-supplied input. An attacker could exploit this vulnerability by sending a malicious IPv4 or IPv6 packet to an affected device on TCP port 7400. An exploit could allow the attacker to overread a buffer, resulting in a crash and restart of the XCP Router service. Cisco Bug IDs: CSCvg97663, CSCvi55947.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.03446 89th 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
Yes
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
CiscoUnified Communications Manager IM & Presence Service (CUCM IM&P)all versions—No fix listedCNA
CiscoTelePresence Video Communication Server (VCS) and Expresswayall versions—No fix listedCNA
  • Unified Communications Manager IM & Presence Service (CUCM IM&P) VendorCisco Affected all versions Fixed in — No fix listed CNA
  • TelePresence Video Communication Server (VCS) and Expressway VendorCisco Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 13

CPEVersionsRoleVendor
cpe:2.3:a:cisco:telepresence_video_communication_server:x7.0.1:*:*:*:*:*:*:*x7.0.1VulnerableCisco
cpe:2.3:a:cisco:telepresence_video_communication_server:x7.2.4:*:*:*:*:*:*:*x7.2.4VulnerableCisco
cpe:2.3:a:cisco:telepresence_video_communication_server:x8.1:*:*:*:*:*:*:*x8.1VulnerableCisco
cpe:2.3:a:cisco:telepresence_video_communication_server:x8.2.2:*:*:*:*:*:*:*x8.2.2VulnerableCisco
cpe:2.3:a:cisco:telepresence_video_communication_server:x8.5:*:*:*:*:*:*:*x8.5VulnerableCisco
cpe:2.3:a:cisco:telepresence_video_communication_server:x8.6:*:*:*:*:*:*:*x8.6VulnerableCisco
cpe:2.3:a:cisco:telepresence_video_communication_server:x8.7:*:*:*:*:*:*:*x8.7VulnerableCisco
cpe:2.3:a:cisco:telepresence_video_communication_server:x8.8:*:*:*:*:*:*:*x8.8VulnerableCisco
cpe:2.3:a:cisco:telepresence_video_communication_server:x8.9:*:*:*:*:*:*:*x8.9VulnerableCisco
cpe:2.3:a:cisco:telepresence_video_communication_server:x8.10:*:*:*:*:*:*:*x8.10VulnerableCisco
  • cpe:2.3:a:cisco:telepresence_video_communication_server:x7.0.1:*:*:*:*:*:*:* Versions x7.0.1 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:telepresence_video_communication_server:x7.2.4:*:*:*:*:*:*:* Versions x7.2.4 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:telepresence_video_communication_server:x8.1:*:*:*:*:*:*:* Versions x8.1 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:telepresence_video_communication_server:x8.2.2:*:*:*:*:*:*:* Versions x8.2.2 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:telepresence_video_communication_server:x8.5:*:*:*:*:*:*:* Versions x8.5 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:telepresence_video_communication_server:x8.6:*:*:*:*:*:*:* Versions x8.6 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:telepresence_video_communication_server:x8.7:*:*:*:*:*:*:* Versions x8.7 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:telepresence_video_communication_server:x8.8:*:*:*:*:*:*:* Versions x8.8 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:telepresence_video_communication_server:x8.9:*:*:*:*:*:*:* Versions x8.9 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:telepresence_video_communication_server:x8.10:*:*:*:*:*:*:* Versions x8.10 Vulnerable ·Cisco
Show 3 more CPE
CPEVersionsRoleVendor
cpe:2.3:a:cisco:telepresence_video_communication_server:x8.10.4:*:*:*:*:*:*:*x8.10.4VulnerableCisco
cpe:2.3:a:cisco:unified_communications_manager_im_and_presence_service:11.5:*:*:*:*:*:*:*11.5VulnerableCisco
cpe:2.3:a:cisco:unified_communications_manager_im_and_presence_service:11.5\(1\):*:*:*:*:*:*:*11.5(1)VulnerableCisco
  • cpe:2.3:a:cisco:telepresence_video_communication_server:x8.10.4:*:*:*:*:*:*:* Versions x8.10.4 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:unified_communications_manager_im_and_presence_service:11.5:*:*:*:*:*:*:* Versions 11.5 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:unified_communications_manager_im_and_presence_service:11.5\(1\):*:*:*:*:*:*:* Versions 11.5(1) Vulnerable ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-0409
  2. 2026-10-03 Alias added: GHSA-qqxj-4rg7-qpmv

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-2023-06915 Code injection in Cisco TelePresence Video Communication Server Expressway CVSS 3.1HIGH 7.2
  • 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
See all 41 →

Sources

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