CVE-2019-1854
Cisco Expressway Series Directory Traversal Vulnerability
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- High
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
4.1
Cisco Expressway Series Directory Traversal Vulnerability
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.
- Record
CVE-2019-1854- CVSS 3.0
- 4.1 Medium
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:N - Weakness
- CWE-22
- Updated
- 2026-11-02
EUVDEUVD-2019-10411
4.1
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.
- Record
EUVD-2019-10411- CVSS 3.0
- 4.1 Medium
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:N - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-r7gg-wq5p-qhgv No score
A vulnerability in the management web interface of Cisco Expressway Series could allow an...
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.
- Record
GHSA-r7gg-wq5p-qhgv- Updated
- 2026-11-02
NVD
4.1
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.
- Record
CVE-2019-1854- CVSS 3.0
- 4.1 Medium
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:N - CVSS 3.0
- 4.3 Medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N - CVSS 2.0
- 4.0 Medium
AV:N/AC:L/Au:S/C:P/I:N/A:N - Weakness
- CWE-22
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2019-1854 is a medium vulnerability (CVSS 4.1) in Cisco Expressway, published May 3, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 3.75%, the 89th percentile. No source names a fixed version.
References
tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-expressway-traversal
securityfocus.com/bid/108154
seclists.org/fulldisclosure/2019/May/28
seclists.org/bugtraq/2019/May/49
packetstormsecurity.com/files/152963/Cisco-Expressway-Gateway-11.5.1-Directory-Traversal.html
nvd.nist.gov/vuln/detail/CVE-2019-1854
github.com/advisories/GHSA-r7gg-wq5p-qhgv