# CVE-2023-32037: Windows Layer-2 Bridge Network Driver Information Disclosure Vulnerability

> An attacker can exploit the Windows Layer-2 Bridge Network Driver to disclose sensitive information.

- **Severity:** Medium 6.5 (`CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C`)
- **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:** 11 Jul 2023
- **Updated:** 1 Jan 2025
- **Also known as:** GHSA-j68p-v78v-2jh4

## What is CVE-2023-32037?

CVE-2023-32037 is a medium-severity vulnerability in Microsoft Windows 10 1809, published on 11 Jul 2023. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Windows Layer-2 Bridge Network Driver Information Disclosure Vulnerability

Weakness: CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2023-32037?

It affects 7 products.


Products: Microsoft Windows 10 1809, Microsoft Windows 10 21h2, Microsoft Windows 10 22h2, Microsoft Windows 11 21h2, Microsoft Windows 11 22h2, Microsoft Windows Server 2019, Microsoft Windows Server 2022.

## How do I fix CVE-2023-32037?

No fix has been published for CVE-2023-32037 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-32037 being exploited?

There is no known exploitation of CVE-2023-32037 in the wild and no public exploit code.

## Other vulnerabilities in Microsoft Windows 10 1809

- [CVE-2024-29988](https://insights.sbomify.com/CVE-2024-29988/): Microsoft SmartScreen Prompt Security Feature Bypass (high 8.8, exploited in the wild)
- [CVE-2024-21412](https://insights.sbomify.com/CVE-2024-21412/): Microsoft Windows Internet Shortcut Files Security Feature Bypass (high 8.1, exploited in the wild)
- [CVE-2025-62221](https://insights.sbomify.com/CVE-2025-62221/): Microsoft Windows Use After Free (high 7.8, exploited in the wild)
- [CVE-2025-30400](https://insights.sbomify.com/CVE-2025-30400/): Microsoft Windows DWM Core Library Use-After-Free (high 7.8, exploited in the wild)
- [CVE-2024-21338](https://insights.sbomify.com/CVE-2024-21338/): Microsoft Windows Kernel Exposed IOCTL with Insufficient Access Control (high 7.8, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-32037 and fix it if it is affected.

What it is: CVE-2023-32037 is a medium-severity vulnerability in Microsoft Windows 10 1809, published on 11 Jul 2023. 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-2023-32037 in the wild and no public exploit code.

Affected product: Microsoft Windows 10 1809. 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-2023-32037/ (Markdown: https://insights.sbomify.com/CVE-2023-32037/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-32037
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-32037
- OSV: https://osv.dev/vulnerability/CVE-2023-32037

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-32037/
Summaries are generated and may contain mistakes; the official description above is the record.