# CVE-2025-10021: Memory corruption in ODA Drawings SDK - All Versions < 2026.12

> An uninitialized variable in the ODA Drawings SDK can cause application crashes or potential code execution due to undefined initialization order.

- **Severity:** High 7.0 (`CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N/AU:Y/R:U/V:D/RE:L/U:Amber`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 22 Dec 2025
- **Updated:** 22 Dec 2025
- **Also known as:** GHSA-rx6r-89fc-6xm2

## What is CVE-2025-10021?

CVE-2025-10021 is a high-severity memory corruption vulnerability in Open Design Alliance ODA Drawings SDK - All Versions < 2026.12, published on 22 Dec 2025. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

A Use of Uninitialized Variable vulnerability exists in Open Design Alliance Drawings SDK static versions (mt) before 2026.12. Static object `COdaMfcAppApp theApp` may access `OdString::kEmpty` before its initialization. Due to undefined initialization order of static objects across translation units (Static Initialization Order Fiasco), the application accesses uninitialized memory. This results in application crash on startup, causing denial of service. Due to undefined behavior,  memory corruption and potential arbitrary code execution cannot be ruled out in specific exploitation scenarios.

Weakness: CWE-457 (Use of Uninitialized Variable)

## Which versions are affected by CVE-2025-10021?


## How do I fix CVE-2025-10021?

No fix has been published for CVE-2025-10021 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-10021 being exploited?

There is no known exploitation of CVE-2025-10021 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-10021 and fix it if it is affected.

What it is: CVE-2025-10021 is a high-severity memory corruption vulnerability in Open Design Alliance ODA Drawings SDK - All Versions < 2026.12, published on 22 Dec 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2025-10021 in the wild and no public exploit code.

Affected product: Open Design Alliance ODA Drawings SDK - All Versions < 2026.12. 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-2025-10021/ (Markdown: https://insights.sbomify.com/CVE-2025-10021/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-10021
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-10021
- OSV: https://osv.dev/vulnerability/CVE-2025-10021

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From sbomify Insights: https://insights.sbomify.com/CVE-2025-10021/
Summaries are generated and may contain mistakes; the official description above is the record.