CVE-2025-20354
Cisco Unified Contact Center Express Remote Code Execution Vulnerability
Description
A vulnerability in the Java Remote Method Invocation (RMI) process of Cisco Unified CCX could allow an unauthenticated, remote attacker to upload arbitrary files and execute arbitrary commands with root permissions on an affected system. This vulnerability is due to improper authentication mechanisms that are associated to specific Cisco Unified CCX features. An attacker could exploit this vulnerability by uploading a crafted file to an affected system through the Java RMI process. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system and elevate privileges to root.
Weakness: CWE-434
Affected products
| Vendor | Product | Category | Matched by |
|---|---|---|---|
| Cisco | Cisco Contact Center | Other Products | cna-assigner |
Vendor-reported products (1)
- Cisco · Cisco Unified Contact Center Express
Vendor advisory
cisco-sa-cc-unauth-rce-QeN8h7mQ
Cisco Unified Contact Center Express Remote Code Execution Vulnerabilities
Cisco’s rating: Critical (advisory CVSS 9.8) · Published Nov 5, 2025 · updated Nov 13, 2025 (revision 1.1)
Bug IDs: CSCwq36528 , CSCwq36573
The vendor’s rating applies to the whole advisory and can differ from this CVE’s own CVSS severity. Where this comes from