# CVE-2025-35051: Newforma Project Center Server (NPCS) .NET unauthenticated deserialization

> Remote unauthenticated attackers can execute arbitrary code via deserialization in Newforma Project Center Server, requiring network access restrictions for mitigation.

- **Severity:** High 7.7 (`CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/MAV:A`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 9 Oct 2025
- **Updated:** 10 Oct 2025
- **Also known as:** GHSA-gm5v-4gx5-3983

## What is CVE-2025-35051?

CVE-2025-35051 is a high-severity unsafe deserialization vulnerability in Newforma Project Center, published on 9 Oct 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Newforma Project Center Server (NPCS) accepts serialized .NET data via the '/ProjectCenter.rem' endpoint on 9003/tcp, allowing a remote, unauthenticated attacker to execute arbitrary code with 'NT AUTHORITY\NetworkService' privileges. According to the recommended architecture, the vulnerable NPCS endpoint is only accessible on an internal network. To mitigate this vulnerability, restrict network access to NPCS.

Weakness: CWE-502 (Deserialization of Untrusted Data), CWE-306 (Missing Authentication for Critical Functionality)

## Which versions are affected by CVE-2025-35051?

It affects 1 product.


Products: Newforma Project Center.

## How do I fix CVE-2025-35051?

No fix has been published for CVE-2025-35051 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-35051 being exploited?

There is no known exploitation of CVE-2025-35051 in the wild and no public exploit code.

## Other vulnerabilities in Newforma Project Center

- [CVE-2025-35050](https://insights.sbomify.com/CVE-2025-35050/): Newforma Info Exchange (NIX) .NET unauthenticated deserialization (critical 9.3)
- [CVE-2025-35055](https://insights.sbomify.com/CVE-2025-35055/): Newforma Info Exchange (NIX) insecure file upload (high 8.7)
- [CVE-2025-35058](https://insights.sbomify.com/CVE-2025-35058/): Newforma Info Exchange (NIX) forced NTLMv2 authentication via /UserWeb/Common/MarkupServices.ashx (high 8.2)
- [CVE-2025-35061](https://insights.sbomify.com/CVE-2025-35061/): Newforma Info Exchange (NIX) forced NTLMv2 authentication via /NPCSRemoteWeb/LegacyIntegrationServices.asmx (high 8.2)
- [CVE-2025-35062](https://insights.sbomify.com/CVE-2025-35062/): Newforma Info Exchange (NIX) default anonymous access (medium 6.9)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-35051 and fix it if it is affected.

What it is: CVE-2025-35051 is a high-severity unsafe deserialization vulnerability in Newforma Project Center, published on 9 Oct 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-2025-35051 in the wild and no public exploit code.

Affected product: Newforma Project Center. 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-2025-35051/ (Markdown: https://insights.sbomify.com/CVE-2025-35051/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-35051
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-35051
- OSV: https://osv.dev/vulnerability/CVE-2025-35051

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-35051/
Summaries are generated and may contain mistakes; the official description above is the record.