CVE-2025-20354: Cisco Unified Contact Center Express Remote Code Execution Vulnerability

Published Nov 5, 2025
·
Updated

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.

Affected Software

3 affected components
Cisco Unified CCX
Cisco Unified Contact Center Express<12.5\(1\)_su03_es07
Cisco Unified Contact Center Express=15.0

Event History

Nov 5, 2025
CVE Published
via MITRE·04:31 PM
Data Sourced
via MITRE·04:31 PM
DescriptionSeverityWeakness
Data Sourced
via NVD·05:15 PM
DescriptionSeverityWeaknessAffected Software
Nov 6, 2025
News Published
via BleepingComputer·01:31 PM
News Published
via BleepingComputer·01:32 PM
News Published
via The Register·06:51 PM
News Published
via The Register·06:56 PM
Nov 7, 2025
News Published
via BleepingComputer·03:44 PM

Frequently Asked Questions

1

What is the severity of CVE-2025-20354?

CVE-2025-20354 has a critical severity rating due to its potential to allow remote code execution with root privileges.

2

How do I fix CVE-2025-20354?

To fix CVE-2025-20354, upgrade to the latest version of Cisco Unified CCX as provided by Cisco's security advisory.

3

What are the potential impacts of exploiting CVE-2025-20354?

Exploitation of CVE-2025-20354 can lead to arbitrary file uploads and execution of arbitrary commands, compromising the entire system.

4

Who is affected by CVE-2025-20354?

Any organization utilizing the affected versions of Cisco Unified CCX is susceptible to CVE-2025-20354.

5

Is authentication needed to exploit CVE-2025-20354?

No, CVE-2025-20354 can be exploited by an unauthenticated remote attacker.

Contact

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