# CVE-2025-34039: Yonyou NC BeanShell Command Injection

> Unauthenticated attackers can execute arbitrary Java code via the exposed BeanShell servlet in Yonyou UFIDA NC, leading to full server compromise.

- **Severity:** Critical 10.0 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 24 Jun 2025
- **Updated:** 14 May 2026
- **Also known as:** GHSA-r7hr-5f7j-xxrw

## What is CVE-2025-34039?

CVE-2025-34039 is a critical code injection vulnerability in Yonyou Co., Ltd. UFIDA NC, published on 24 Jun 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A code injection vulnerability exists in Yonyou UFIDA NC v6.5 and prior due to the exposure of the BeanShell testing servlet (bsh.servlet.BshServlet) without proper access controls. The servlet allows unauthenticated remote attackers to execute arbitrary Java code via the bsh.script parameter. This can be exploited to run system commands and ultimately gain full control over the target server. The issue is rooted in a third-party JAR component bundled with the application, and the servlet is accessible without authentication on vulnerable installations. Exploitation evidence was observed by the Shadowserver Foundation on 2025-02-05 UTC.

Weakness: CWE-306 (Missing Authentication for Critical Functionality)

## Which versions are affected by CVE-2025-34039?


## How do I fix CVE-2025-34039?

No fix has been published for CVE-2025-34039 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-34039 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-34039 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-34039 and fix it if it is affected.

What it is: CVE-2025-34039 is a critical code injection vulnerability in Yonyou Co., Ltd. UFIDA NC, published on 24 Jun 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-34039 exists.

Affected product: Yonyou Co., Ltd. UFIDA NC. 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-2025-34039/ (Markdown: https://insights.sbomify.com/CVE-2025-34039/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-34039
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-34039
- OSV: https://osv.dev/vulnerability/CVE-2025-34039

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-34039/
Summaries are generated and may contain mistakes; the official description above is the record.