Improper input validation in Cisco Unified Customer Voice Portal
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
A vulnerability in the Interactive Voice Response (IVR) management connection interface for Cisco Unified Customer Voice Portal (CVP) could allow an unauthenticated, remote attacker to cause the IVR connection to disconnect, creating a system-wide denial of service (DoS) condition. The vulnerability is due to improper handling of a TCP connection request when the IVR connection is already established. An attacker could exploit this vulnerability by initiating a crafted connection to the IP address of the targeted CVP device. An exploit could allow the attacker to disconnect the IVR to CVP connection, creating a DoS condition that prevents the CVP from accepting new, incoming calls while the IVR automatically attempts to re-establish the connection to the CVP. This vulnerability affects Cisco Unified Customer Voice Portal (CVP) Software Release 11.5(1). Cisco Bug IDs: CSCve70560.
Why it matters now
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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | Cisco Unified Customer Voice Portal | Cisco Unified Customer Voice Portal | — | No fix listed | CNA |
- Cisco Unified Customer Voice Portal Vendor— Affected Cisco Unified Customer Voice Portal Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2018-0139
- 2026-10-03 Alias added: GHSA-5g5r-5vxp-8rwg
References
More Cisco Unified Customer Voice Portal vulnerabilities
- TI-2021-19919 Apache Log4j2 JNDI features do not protect against attacker controlled LDAP and other JNDI related endpoints KEVCVSS 3.1CRITICAL 10.0
- TI-2013-01064 The Tomcat Web Management feature in Cisco Unified Customer Voice Portal (CVP) Software… CVSS 2.0HIGH 10.0
- TI-2018-00061 Uncontrolled resource consumption in Cisco Unified Customer Voice Portal CVSS 3.0HIGH 8.6
- TI-2008-01973 Unspecified vulnerability in Cisco Unified Customer Voice Portal (CVP) 4.0.x before… CVSS 2.0HIGH 9.0
- TI-2020-02952 Cisco Unified Customer Voice Portal Information Disclosure Vulnerability CVSS 3.1HIGH 7.5
- TI-2017-08993 Access control flaw in Cisco Unified Customer Voice Portal CVSS 3.0HIGH 8.8
Sources
- CVE-2018-0139 · CVE Program
- CVE-2018-0139 · NVD
- FIRST EPSS
- GHSA-5g5r-5vxp-8rwg · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences