# CVE-2025-20375: Cisco Unified Contact Center Express Arbitrary File Upload Vulnerability

> An authenticated attacker with admin credentials can upload and execute arbitrary files on Cisco Unified CCX, gaining OS access.

- **Severity:** Medium 6.5 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 5 Nov 2025
- **Updated:** 26 Feb 2026
- **Also known as:** GHSA-vcvf-6gw2-rm4v

## What is CVE-2025-20375?

CVE-2025-20375 is a medium-severity vulnerability in Cisco Unified Contact Center Express, published on 5 Nov 2025. An attacker needs administrator access to exploit it, with no action from the victim.

### Official 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.

Weakness: CWE-434 (Unrestricted Upload of File with Dangerous Type)

## Which versions are affected by CVE-2025-20375?

It affects 1 product.


Products: Cisco Unified Contact Center Express.

## How do I fix CVE-2025-20375?

No fix has been published for CVE-2025-20375 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-20375 being exploited?

There is no known exploitation of CVE-2025-20375 in the wild and no public exploit code.

## Other vulnerabilities in Cisco Unified Contact Center Express

- [CVE-2025-20354](https://insights.sbomify.com/CVE-2025-20354/): Cisco Unified Contact Center Express Remote Code Execution Vulnerability (critical 9.8)
- [CVE-2020-3280](https://insights.sbomify.com/CVE-2020-3280/): Cisco Unified Contact Center Express Remote Code Execution Vulnerability (critical 9.8)
- [CVE-2018-0403](https://insights.sbomify.com/CVE-2018-0403/): Information disclosure in Cisco Unified Contact Center Express unknown (critical 9.8)
- [CVE-2022-20658](https://insights.sbomify.com/CVE-2022-20658/): Privilege escalation in Cisco Unified Contact Center Domain Manager (critical 9.6)
- [CVE-2025-20358](https://insights.sbomify.com/CVE-2025-20358/): Cisco Unified Contact Center Express Editor Authentication Bypass Vulnerability (critical 9.4)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-20375 and fix it if it is affected.

What it is: CVE-2025-20375 is a medium-severity vulnerability in Cisco Unified Contact Center Express, published on 5 Nov 2025. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2025-20375 in the wild and no public exploit code.

Affected product: Cisco Unified Contact Center Express. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2025-20375/ (Markdown: https://insights.sbomify.com/CVE-2025-20375/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-20375
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-20375
- OSV: https://osv.dev/vulnerability/CVE-2025-20375

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-20375/
Summaries are generated and may contain mistakes; the official description above is the record.