Deserialization in Cisco Unity Express
CVE-2018-15381
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.
Vulnerability class: Insecure Deserialization
EPSS: 0.873 (99.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Cisco Unity Express — versions n/a
- Cisco Unity_express
Weakness classification (CWE)
Public proof-of-concept exploits
References
- psirt@cisco.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_SECTRACK)
- psirt@cisco.com (x_refsource_CISCO, vendor-advisory, Vendor Advisory)
- psirt@cisco.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
Frequently asked questions
- What is CVE-2018-15381?
- CVE-2018-15381 is a critical-severity vulnerability in Cisco Unity Express, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2018-11-08.
- How severe is CVE-2018-15381?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2018-15381 known to be exploited?
- 6 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.