TI-2019-01476 Aliases CVE-2019-1854 GHSA-r7gg-wq5p-qhgv

Cisco Expressway Series Directory Traversal Vulnerability

LOW 26CWE-22Published 2019-05-03 · Updated 2024-11-21

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: Information disclosure
Confidentiality · integrity · availability: Low · None · None
Fix status: Fixed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-22 and the CVSS impact.

Summary

A vulnerability in the management web interface of Cisco Expressway Series could allow an authenticated, remote attacker to perform a directory traversal attack against an affected device. The vulnerability is due to insufficient input validation on the web interface. An attacker could exploit this vulnerability by sending a crafted HTTP request to the web interface. A successful exploit could allow the attacker to bypass security restrictions and access the web interface of a Cisco Unified Communications Manager associated with the affected device. Valid credentials would still be required to access the Cisco Unified Communications Manager interface.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.03748 89th percentileScored 2026-11-07

Fix Fixed Cisco Expressway (Cisco): X12.5.2

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

Vendor	Product	Affected versions	Fixed in	Status	Source
Cisco	Cisco Expressway	before X12.5.2	X12.5.2	Patch available	CNA

Cisco Expressway VendorCisco Affected before X12.5.2 Fixed in X12.5.2 Patch available CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:cisco:telepresence_video_communication_server:x8.11.4:::::::*	x8.11.4	Vulnerable	Cisco

cpe:2.3:a:cisco:telepresence_video_communication_server:x8.11.4:*:*:*:*:*:*:* Versions x8.11.4 Vulnerable ·Cisco

Remediation

Fix · CNA Cisco Expressway (Cisco) Fixed in X12.5.2

Timeline

2026-10-02 Threatist record created from CVE-2019-1854
2026-10-03 Alias added: GHSA-r7gg-wq5p-qhgv

References

Advisory 1

20190501 Cisco Expressway Series Directory Traversal Vulnerability

Other 3

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