CVE-2025-20375 Cisco Unified Contact Center Express Arbitrary File Upload Vulnerability

Medium 6.5 Published 5 Nov 2025 Updated 26 Feb 2026

An authenticated attacker with admin credentials can upload and execute arbitrary files on Cisco Unified CCX, gaining OS access.

Exploited in the wild: Not known
Login needed: An administrator
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2025-20375?

CVE-2025-20375 is a medium-severity vulnerability in Cisco Unified Contact Center Express, published on 5 Nov 2025. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

A vulnerability in the web UI of Cisco Unified CCX could allow an authenticated, remote attacker to upload and execute arbitrary files. This vulnerability is due to an insufficient input validation associated to specific UI features. An attacker could exploit this vulnerability by uploading a crafted file to the web UI. A successful exploit could allow the attacker to upload arbitrary files to a vulnerable system and execute them, gaining access to the underlying operating system. To exploit this vulnerability, the attacker must have valid administrative credentials.

Weakness: CWE-434

Which versions are affected by CVE-2025-20375?

It affects 1 product.

Products include Cisco Unified Contact Center Express.

How do I fix CVE-2025-20375?

No fix has been published for CVE-2025-20375 yet. Limit exposure of the affected software until one is available.

Is CVE-2025-20375 being exploited?

There is no known exploitation of CVE-2025-20375 in the wild and no public exploit code.

Sources

Also known as GHSA-vcvf-6gw2-rm4v.