CVE-2025-20275 Cisco Unified Contact Center Express Editor Remote Code Execution Vulnerability

Medium 5.3 Published 4 Jun 2025 Updated 26 Feb 2026

An attacker can execute arbitrary code by tricking a user into opening a malicious file in the Cisco Unified CCX Editor.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2025-20275?

CVE-2025-20275 is a medium-severity unsafe deserialization vulnerability in Cisco Unified Contact Center Express, published on 4 Jun 2025. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

A vulnerability in the file opening process of Cisco Unified Contact Center Express (Unified CCX) Editor could allow an unauthenticated attacker to execute arbitrary code on an affected device.  This vulnerability is due to insecure deserialization of Java objects by the affected software. An attacker could exploit this vulnerability by persuading an authenticated, local user to open a crafted .aef file. A successful exploit could allow the attacker to execute arbitrary code on the host that is running the editor application with the privileges of the user who launched it.

Weakness: CWE-502

Which versions are affected by CVE-2025-20275?

It affects 1 product.

Products include Cisco Unified Contact Center Express.

How do I fix CVE-2025-20275?

No fix has been published for CVE-2025-20275 yet. Limit exposure of the affected software until one is available.

Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.

Is CVE-2025-20275 being exploited?

There is no known exploitation of CVE-2025-20275 in the wild and no public exploit code.

Sources

Also known as GHSA-wh83-8497-cgfq.