# CVE-2017-0168: Information disclosure in Windows Hyper-V

> An authenticated guest user can exploit improper input validation in the Hyper-V Network Switch to disclose sensitive information from the host.

- **Severity:** Medium 5.8 (`CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 12 Apr 2017
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-cvq4-rrgx-4c7h

## What is CVE-2017-0168?

CVE-2017-0168 is a medium-severity vulnerability in Microsoft Windows 8.1, published on 12 Apr 2017. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

An information disclosure vulnerability exists when the Windows Hyper-V Network Switch running on a Windows 8.1, Windows Server 2008, Windows Server 2008 R2, Windows Server 2012, or Windows Server 2012 R2 host operating system fails to properly validate input from an authenticated user on a guest operating system, aka "Hyper-V Information Disclosure Vulnerability." This CVE ID is unique from CVE-2017-0169.

Weakness: CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor)

## Which versions are affected by CVE-2017-0168?

It affects 3 products.


Products: Microsoft Windows 8.1, Microsoft Windows Server 2008, Microsoft Windows Server 2012.

## How do I fix CVE-2017-0168?

No fix has been published for CVE-2017-0168 yet. Limit exposure of the affected software until one is available.

## Is CVE-2017-0168 being exploited?

There is no known exploitation of CVE-2017-0168 in the wild and no public exploit code.

## Other vulnerabilities in Microsoft Windows 8.1

- [CVE-2017-0022](https://insights.sbomify.com/CVE-2017-0022/): Microsoft XML Core Services Information Disclosure (medium 6.5, exploited in the wild)
- [CVE-2016-3300](https://insights.sbomify.com/CVE-2016-3300/): Privilege escalation in n/a (high 7.8)
- [CVE-2016-0044](https://insights.sbomify.com/CVE-2016-0044/): Denial of service in n/a (high 7.5)
- [CVE-2015-2361](https://insights.sbomify.com/CVE-2015-2361/): Memory corruption in n/a (high 7.2)
- [CVE-2015-0058](https://insights.sbomify.com/CVE-2015-0058/): Double free vulnerability in win32k.sys in the kernel-mode drivers in Microsoft Windows 8.1, Windows Server 2012 R2, and Windows RT 8.1 allo (high 7.2)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2017-0168 and fix it if it is affected.

What it is: CVE-2017-0168 is a medium-severity vulnerability in Microsoft Windows 8.1, published on 12 Apr 2017. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2017-0168 in the wild and no public exploit code.

Affected product: Microsoft Windows 8.1. 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-2017-0168/ (Markdown: https://insights.sbomify.com/CVE-2017-0168/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2017-0168
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2017-0168
- OSV: https://osv.dev/vulnerability/CVE-2017-0168

---
From sbomify Insights: https://insights.sbomify.com/CVE-2017-0168/
Summaries are generated and may contain mistakes; the official description above is the record.