# CVE-2025-10220: Outdated Third-Party NuGet Packages in AxxonSoft Axxon One VMS 2.0.0 through 2.0.4

> Remote attackers can execute arbitrary code or bypass security features by exploiting vulnerable third-party NuGet packages in AxxonSoft Axxon One VMS.

- **Severity:** Critical 9.3 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 10 Sep 2025
- **Updated:** 8 Oct 2025
- **Also known as:** GHSA-4hm3-rc3w-g6pc

## What is CVE-2025-10220?

CVE-2025-10220 is a critical vulnerability in AxxonSoft AxxonOne C-Werk, published on 10 Sep 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Use of Unmaintained Third Party Components (CWE-1104) in the NuGet dependency components in AxxonSoft Axxon One VMS 2.0.0 through 2.0.4 on Windows allows a remote attacker to execute arbitrary code or bypass security features via exploitation of vulnerable third-party packages such as Google.Protobuf, DynamicData, System.Runtime.CompilerServices.Unsafe, and others.

Weakness: CWE-1104 (Use of Unmaintained Third Party Components)

## Which versions are affected by CVE-2025-10220?

It affects 1 product.


Products: Axxonsoft Axxon One.

## How do I fix CVE-2025-10220?

No fix has been published for CVE-2025-10220 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-10220 being exploited?

There is no known exploitation of CVE-2025-10220 in the wild and no public exploit code.

## Other vulnerabilities in AxxonSoft AxxonOne C-Werk

- [CVE-2025-10226](https://insights.sbomify.com/CVE-2025-10226/): Supply chain in AxxonOne C-Werk (critical 9.3)
- [CVE-2025-10225](https://insights.sbomify.com/CVE-2025-10225/): Incorrect Memory Allocation in OpenSSL-Based Session Module in AxxonSoft Axxon One (C-Werk) (high 8.7)
- [CVE-2025-10221](https://insights.sbomify.com/CVE-2025-10221/): Hardcoded Password Exposure in AxxonNet (C-WerkNet) ARP Agent Logs (medium 6.7)
- [CVE-2025-10223](https://insights.sbomify.com/CVE-2025-10223/): Improper Session Cleanup on Role Removal in Web Admin Panel in AxxonSoft Axxon One (C-Werk) (medium 5.3)
- [CVE-2025-10224](https://insights.sbomify.com/CVE-2025-10224/): Incorrect Evaluation of LDAP Nested Groups during Login in AxxonSoft Axxon One (C-Werk) (medium 5.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-10220 and fix it if it is affected.

What it is: CVE-2025-10220 is a critical vulnerability in AxxonSoft AxxonOne C-Werk, published on 10 Sep 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2025-10220 in the wild and no public exploit code.

Affected product: AxxonSoft AxxonOne C-Werk. 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-2025-10220/ (Markdown: https://insights.sbomify.com/CVE-2025-10220/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-10220
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-10220
- OSV: https://osv.dev/vulnerability/CVE-2025-10220

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-10220/
Summaries are generated and may contain mistakes; the official description above is the record.