Riskcovery

CVE-2025-20354

Cisco Unified Contact Center Express Remote Code Execution Vulnerability

State
Published
Severity
9.8 Critical
Published
Nov 5, 2025
Updated
Feb 26, 2026
Reserved
Oct 10, 2024

Read the record on cve.org

Description

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.

Scores

CVSSScoreVectorSource
3.19.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hcisco

Weaknesses

  • CWE-434 Unrestricted Upload of File with Dangerous Type

Affected Products

ProductVersions
Cisco Unified Contact Center ExpressCisco
  • 10.5(1)SU1Affected
  • 10.6(1)Affected
  • 11.6(1)Affected
  • 10.6(1)SU1Affected
  • 10.6(1)SU3Affected
  • 11.6(2)Affected
  • 12.0(1)Affected
  • 11.0(1)SU1Affected
  • 11.5(1)SU1Affected
  • 10.5(1)Affected
  • 12.5(1)Affected
  • 12.5(1)SU1Affected
  • 12.5(1)SU2Affected
  • 12.5(1)SU3Affected
  • 12.5(1)_SU03_ES01Affected
  • 12.5(1)_SU03_ES02Affected
  • 12.5(1)_SU02_ES03Affected
  • 12.5(1)_SU02_ES04Affected
  • 12.5(1)_SU02_ES02Affected
  • 12.5(1)_SU01_ES02Affected
  • 12.5(1)_SU01_ES03Affected
  • 12.5(1)_SU02_ES01Affected
  • 11.6(2)ES07Affected
  • 11.6(2)ES08Affected
  • 12.5(1)_SU01_ES01Affected
  • and 32 more versions

References

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.