CRITICAL Cisco Systems, Inc. Vulnerability Alert

Product:

Cisco Unified CCX

Summary

A vulnerability in the Java Remote Method Invocation 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 associated with specific Cisco Unified CCX features. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system and elevate privileges to root.

Details

Severity Base Score CVE
CRITICAL 9.8 CVE-2025-20354

Exploitation

An attacker could exploit this vulnerability by uploading a crafted file to an affected system through the Java RMI process. Since the vulnerability allows for unauthenticated access, an attacker does not need any prior credentials to initiate the exploit. Once the crafted file is uploaded, the attacker can execute arbitrary commands, gaining root access to the system.

Affected Products

  • Cisco Unified CCX: Affected by the vulnerability due to improper authentication mechanisms in the Java RMI process.

Mitigation

To mitigate this vulnerability, it is recommended to apply the latest security patches provided by Cisco. Additionally, organizations should review their authentication mechanisms and restrict access to the Java RMI process to trusted sources only.

References