# CVE-2023-38148: Internet Connection Sharing (ICS) Remote Code Execution Vulnerability

> Attackers can execute arbitrary code on Windows systems by exploiting a stack-based buffer overflow in Internet Connection Sharing, requiring ICS to be enabled.

- **Severity:** High 8.8 (`CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/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:** 12 Sep 2023
- **Updated:** 30 Oct 2025
- **Also known as:** GHSA-jr98-q98r-q6vc

## What is CVE-2023-38148?

CVE-2023-38148 is a high-severity memory corruption vulnerability in Microsoft Windows 10 21h2, published on 12 Sep 2023. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Internet Connection Sharing (ICS) Remote Code Execution Vulnerability

Weakness: CWE-121 (Stack-based Buffer Overflow)

## Which versions are affected by CVE-2023-38148?

It affects 4 products.


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

## How do I fix CVE-2023-38148?

No fix has been published for CVE-2023-38148 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-38148 being exploited?

There is no known exploitation of CVE-2023-38148 in the wild and no public exploit code.

## Other vulnerabilities in Microsoft Windows 10 21h2

- [CVE-2025-21333](https://insights.sbomify.com/CVE-2025-21333/): Microsoft Windows Hyper-V NT Kernel Integration VSP Heap-based Buffer Overflow (high 7.8, exploited in the wild)
- [CVE-2025-21334](https://insights.sbomify.com/CVE-2025-21334/): Microsoft Windows Hyper-V NT Kernel Integration VSP Use-After-Free (high 7.8, exploited in the wild)
- [CVE-2025-21335](https://insights.sbomify.com/CVE-2025-21335/): Microsoft Windows Hyper-V NT Kernel Integration VSP Use-After-Free (high 7.8, exploited in the wild)
- [CVE-2026-42904](https://insights.sbomify.com/CVE-2026-42904/): Windows TCP/IP Elevation of Privilege Vulnerability (critical 9.6)
- [CVE-2026-105733](https://insights.sbomify.com/CVE-2026-105733/): Windows Hyper-V Remote Code Execution Vulnerability (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-38148 and fix it if it is affected.

What it is: CVE-2023-38148 is a high-severity memory corruption vulnerability in Microsoft Windows 10 21h2, published on 12 Sep 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-2023-38148 in the wild and no public exploit code.

Affected product: Microsoft Windows 10 21h2. 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-2023-38148/ (Markdown: https://insights.sbomify.com/CVE-2023-38148/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-38148
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-38148
- OSV: https://osv.dev/vulnerability/CVE-2023-38148

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-38148/
Summaries are generated and may contain mistakes; the official description above is the record.