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CVE-2025-20376

Cisco Unified Contact Center Express Remote Code Execution Vulnerability

Published: Nov 5, 2025Updated: Nov 17, 2025 Sources: CVE List NVD BDUCWE-434
NVD MITRE
6.5CVSSMEDIUM
EPSS Score
0.4%
Top 69.4%
CISA KEV
Not in KEV
Exploits
0 Known
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:LPR:HUI:NS:UC:HI:HA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:HPrivileges Required
High
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:NAvailability
None
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Weaknesses

CWE-434

Affected Products

Cisco Unified Contact Center Express EditorCisco Systems Inc.
On-prem
Networking Infrastructure / router-switch
unified contact center expresscisco
On-premWeb App
Enterprise Software / itsm-monitoring
Cisco Unified Contact Center ExpressCisco
On-prem
Communications / messaging-chat
cisco systems inc.commercialUSNetworking Infrastructureaka cisco systems, cisco
ciscocommercialUSNetworking Infrastructureaka cisco systems, cisco systems inc.

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

0 exploit sources identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available

MITRE ATT&CK

3 techniques
Command and Control
Initial Access
Persistence
View detailed technique mapping

References

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cc-mult-vuln-gK4TFXSn
sec.cloudapps.cisco.com

Timeline

Published
Nov 5, 2025
Last Updated
Nov 17, 2025

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