TI-2015-03621 Aliases CVE-2015-4316 GHSA-2mgc-vc9w-hfw7

The Mobile and Remote Access (MRA) endpoint-validation feature in Cisco TelePresence…

LOW 29CWE-20Published 2015-08-20 · Updated 2024-08-06

Key facts

Attack vector: Network
Privileges required: Low
User interaction: — Not recorded in CVSS 2.0
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: Partial · None · Partial
Fix status: No fix listed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA.

Summary

The Mobile and Remote Access (MRA) endpoint-validation feature in Cisco TelePresence Video Communication Server (VCS) Expressway X8.5.2 improperly validates the phone line used for registration, which allows remote authenticated users to conduct impersonation attacks via a crafted registration, aka Bug ID CSCuv40396.

Why it matters now

EPSS 0.01889 79th percentileScored 2026-11-08

Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:cisco:telepresence_video_communication_server_software:x8.5.2::::expressway:::	x8.5.2	Vulnerable	Cisco

cpe:2.3:a:cisco:telepresence_video_communication_server_software:x8.5.2:*:*:*:expressway:*:*:* Versions x8.5.2 Vulnerable ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2015-4316
2026-10-03 Alias added: GHSA-2mgc-vc9w-hfw7

References

Advisory 1

20150813 Cisco TelePresence Video Communication Server Expressway Access Vulnerability

TI-2015-00604 The management interface in Cisco TelePresence Video Communication Server (VCS) and Cisco… CVSS 2.0HIGH 10.0
TI-2014-02702 Cisco TelePresence Video Communication Server (VCS) and Expressway Software before X8.2… CVSS 2.0HIGH 7.8
TI-2015-00603 The Session Description Protocol (SDP) implementation in Cisco TelePresence Video… CVSS 2.0HIGH 7.8
TI-2014-02704 Cisco TelePresence Video Communication Server (VCS) and Expressway Software before X8.1.1… CVSS 2.0HIGH 7.1
TI-2014-02703 The SIP IX implementation in Cisco TelePresence Video Communication Server (VCS) and… CVSS 2.0HIGH 7.1
TI-2015-00720 Cisco TelePresence Video Communication Server (VCS) X8.5RC4 allows remote attackers to… CVSS 2.0HIGH 7.1

See all 28 →

Sources

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