# CVE-2025-62220: Windows Subsystem for Linux GUI Remote Code Execution Vulnerability

> Heap-based buffer overflow in WSL GUI allows remote attackers to execute arbitrary code over the network.

- **Severity:** High 8.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 11 Nov 2025
- **Updated:** 26 Feb 2026
- **Also known as:** GHSA-q774-gvh6-h2cc

## What is CVE-2025-62220?

CVE-2025-62220 is a high-severity memory corruption vulnerability in Microsoft Windows Subsystem for Linux GUI, published on 11 Nov 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

Heap-based buffer overflow in Windows Subsystem for Linux GUI allows an unauthorized attacker to execute code over a network.

Weakness: CWE-122 (Heap-based Buffer Overflow)

## Which versions are affected by CVE-2025-62220?

It affects 1 product.


Products: Microsoft Windows Subsystem for Linux.

## How do I fix CVE-2025-62220?

No fix has been published for CVE-2025-62220 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-62220 being exploited?

There is no known exploitation of CVE-2025-62220 in the wild and no public exploit code.

## Other vulnerabilities in Microsoft Windows Subsystem for Linux GUI

- [CVE-2021-43907](https://insights.sbomify.com/CVE-2021-43907/): Visual Studio Code WSL Extension Remote Code Execution Vulnerability (critical 9.8)
- [CVE-2026-57968](https://insights.sbomify.com/CVE-2026-57968/): Windows Subsystem for Linux (WSL2) Kernel Elevation of Privilege Vulnerability (high 7.8)
- [CVE-2026-85879](https://insights.sbomify.com/CVE-2026-85879/): Windows Subsystem for Linux Elevation of Privilege Vulnerability (high 7.0)
- [CVE-2025-53788](https://insights.sbomify.com/CVE-2025-53788/): Windows Subsystem for Linux (WSL2) Kernel Elevation of Privilege Vulnerability (high 7.0)
- [CVE-2026-96206](https://insights.sbomify.com/CVE-2026-96206/): Windows Subsystem for Linux Information Disclosure Vulnerability (medium 6.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-62220 and fix it if it is affected.

What it is: CVE-2025-62220 is a high-severity memory corruption vulnerability in Microsoft Windows Subsystem for Linux GUI, published on 11 Nov 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2025-62220 in the wild and no public exploit code.

Affected product: Microsoft Windows Subsystem for Linux GUI. 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-2025-62220/ (Markdown: https://insights.sbomify.com/CVE-2025-62220/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-62220
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-62220
- OSV: https://osv.dev/vulnerability/CVE-2025-62220

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-62220/
Summaries are generated and may contain mistakes; the official description above is the record.