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TI-2018-10943 Aliases CVE-2018-15381GHSA-8wm8-7pxp-g9m4

Cisco Unity Express Arbitrary Command Execution Vulnerability

Priority CRITICAL 91CWE-502Published · Updated

Key facts

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

Attack profile from CVSS 3.0 · CNA. Fix status from CNA. Impact type from CWE-502.

Summary

A Java deserialization vulnerability in Cisco Unity Express (CUE) could allow an unauthenticated, remote attacker to execute arbitrary shell commands with the privileges of the root user. The vulnerability is due to insecure deserialization of user-supplied content by the affected software. An attacker could exploit this vulnerability by sending a malicious serialized Java object to the listening Java Remote Method Invocation (RMI) service. A successful exploit could allow the attacker to execute arbitrary commands on the device with root privileges.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.87254 99th 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
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
CiscoCisco Unity Expressall versions—No fix listedCNA
  • Cisco Unity Express VendorCisco Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:cisco:unity_express:*:*:*:*:*:*:*:*before 9.0.6VulnerableCisco
  • cpe:2.3:a:cisco:unity_express:*:*:*:*:*:*:*:* Versions before 9.0.6 Vulnerable ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-15381
  2. 2026-10-03 Alias added: GHSA-8wm8-7pxp-g9m4

References

Advisory 1

  • TI-2019-12026 Cisco Unity Express Command Injection Vulnerability CVSS 3.1MEDIUM 6.7
  • TI-2013-00969 Multiple cross-site request forgery (CSRF) vulnerabilities on the Cisco Unity Express… CVSS 2.0MEDIUM 6.8
  • TI-2005-04524 Cisco IP Phones 7902/7905/7912, ATA 186/188, Unity Express, ACNS, and Subscriber Edge… CVSS 2.0MEDIUM 5.0
  • TI-2006-02110 Unspecified vulnerability in the HTTP management interface in Cisco Unity Express (CUE)… CVSS 2.0LOW 2.1

Sources

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