CVE-2025-20376 - CVE House
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Status published Medium CVE-2025-20376

Cisco Unified Contact Center Express Remote Code Execution Vulnerability

Vulnerability 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 file upload mechanisms. An attacker could exploit this vulnerability by uploading a malicious file to the web UI and executing it. A successful exploit could allow the attacker to execute arbitrary commands on the underlying system and elevate privileges to root. To exploit this vulnerability, the attacker must have valid administrative credentials.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

Affected Vendor

Affected Software

Cisco Unified Contact Center Express
Vulnerable Versions:
10.5(1)SU1, 10.6(1), 11.6(1), 10.6(1)SU1, 10.6(1)SU3, 11.6(2), 12.0(1), 11.0(1)SU1, 11.5(1)SU1, 10.5(1), 12.5(1), 12.5(1)SU1, 12.5(1)SU2, 12.5(1)SU3, 12.5(1)_SU03_ES01, 12.5(1)_SU03_ES02, 12.5(1)_SU02_ES03, 12.5(1)_SU02_ES04, 12.5(1)_SU02_ES02, 12.5(1)_SU01_ES02, 12.5(1)_SU01_ES03, 12.5(1)_SU02_ES01, 11.6(2)ES07, 11.6(2)ES08, 12.5(1)_SU01_ES01, 12.0(1)ES04, 12.5(1)ES02, 12.5(1)ES03, 11.6(2)ES06, 12.5(1)ES01, 12.0(1)ES03, 12.0(1)ES01, 11.6(2)ES05, 12.0(1)ES02, 11.6(2)ES04, 11.6(2)ES03, 11.6(2)ES02, 11.6(2)ES01, 10.6(1)SU3ES03, 11.0(1)SU1ES03, 10.6(1)SU3ES01, 10.5(1)SU1ES10, 11.5(1)SU1ES03, 11.6(1)ES02, 11.5(1)ES01, 10.6(1)SU2, 10.6(1)SU2ES04, 11.6(1)ES01, 10.6(1)SU3ES02, 11.5(1)SU1ES02, 11.5(1)SU1ES01, 11.0(1)SU1ES02, 12.5(1)_SU03_ES03, 12.5(1)_SU03_ES04, 12.5(1)_SU03_ES05, UCCX 15.0.1, 12.5(1)_SU03_ES06

Timeline

Official Publish: November 5th, 2025
Last Modified: February 26th, 2026
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N

Weaknesses (CWE)