# CVE-2021-37203: Information disclosure in NX 1980 Series

> An out-of-bounds read in Siemens NX and Solid Edge allows attackers to read sensitive memory or cause denial of service via malicious IFC files.

- **Severity:** High 7.1 (`CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 14 Sep 2021
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-98jw-m4q8-f849

## What is CVE-2021-37203?

CVE-2021-37203 is a high-severity vulnerability in Siemens NX 1980 Series, published on 14 Sep 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

### Official description

A vulnerability has been identified in NX 1980 Series (All versions < V1984), Solid Edge SE2021 (All versions < SE2021MP8). The plmxmlAdapterIFC.dll contains an out-of-bounds read while parsing user supplied IFC files which could result in a read past the end of an allocated buffer. This could allow an attacker to cause a denial-of-service condition or read sensitive information from memory locations.

Weakness: CWE-125 (Out-of-bounds Read)

## Which versions are affected by CVE-2021-37203?

It affects 2 products.


Products: Siemens Nx 1980, Siemens Solid Edge.

## How do I fix CVE-2021-37203?

No fix has been published for CVE-2021-37203 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-37203 being exploited?

There is no known exploitation of CVE-2021-37203 in the wild and no public exploit code.

## Other vulnerabilities in Siemens NX 1980 Series

- [CVE-2021-37202](https://insights.sbomify.com/CVE-2021-37202/): Use after free in NX 1980 Series (high 7.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-37203 and fix it if it is affected.

What it is: CVE-2021-37203 is a high-severity vulnerability in Siemens NX 1980 Series, published on 14 Sep 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2021-37203 in the wild and no public exploit code.

Affected product: Siemens NX 1980 Series. 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-2021-37203/ (Markdown: https://insights.sbomify.com/CVE-2021-37203/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-37203
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-37203
- OSV: https://osv.dev/vulnerability/CVE-2021-37203

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-37203/
Summaries are generated and may contain mistakes; the official description above is the record.