CVE-2025-20358

CRITICAL

Cisco Unified Contact Center Express - Unauthenticated Remote Code Execution via Authentication Bypass

Title source: llm
STIX 2.1

Description

A vulnerability in the Contact Center Express (CCX) Editor application of Cisco Unified CCX could allow an unauthenticated, remote attacker to bypass authentication and obtain administrative permissions pertaining to script creation and execution. This vulnerability is due to improper authentication mechanisms in the communication between the CCX Editor and an affected Unified CCX server. An attacker could exploit this vulnerability by redirecting the authentication flow to a malicious server and tricking the CCX Editor into believing the authentication was successful. A successful exploit could allow the attacker to create and execute arbitrary scripts on the underlying operating system of an affected Unified CCX server, as an internal non-root user account.

Scores

CVSS v3 9.4
EPSS 0.0053
EPSS Percentile 67.5%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact total

Details

CWE
CWE-306
Status published
Products (2)
cisco/unified_contact_center_express 15.0
cisco/unified_contact_center_express < 12.5\(1\)_su03_es07
Published Nov 05, 2025
Tracked Since Feb 18, 2026