# CVE-2023-1186: FabulaTech Webcam for Remote Desktop IOCTL ftwebcam.sys 0x222018 null pointer dereference

> A local attacker can cause a denial of service via null pointer dereference in FabulaTech Webcam for Remote Desktop.

- **Severity:** Low 3.3 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 6 Mar 2023
- **Updated:** 25 Nov 2024
- **Also known as:** GHSA-w5gw-948h-gpgm

## What is CVE-2023-1186?

CVE-2023-1186 is a low-severity vulnerability in FabulaTech Webcam for Remote Desktop, published on 6 Mar 2023. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

A vulnerability has been found in FabulaTech Webcam for Remote Desktop 2.8.42 and classified as problematic. This vulnerability affects the function 0x222010/0x222018 in the library ftwebcam.sys of the component IOCTL Handler. The manipulation leads to null pointer dereference. Attacking locally is a requirement. The exploit has been disclosed to the public and may be used. VDB-222358 is the identifier assigned to this vulnerability.

Weakness: CWE-476 (NULL Pointer Dereference)

## Which versions are affected by CVE-2023-1186?

It affects 1 product.


Products: Fabulatech Webcam for Remote Desktop.

## How do I fix CVE-2023-1186?

No fix has been published for CVE-2023-1186 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-1186 being exploited?

There is no known exploitation of CVE-2023-1186 in the wild and no public exploit code.

## Other vulnerabilities in FabulaTech Webcam for Remote Desktop

- [CVE-2023-1187](https://insights.sbomify.com/CVE-2023-1187/): FabulaTech Webcam for Remote Desktop Global Variable ftwebcam.sys denial of service (low 3.3)
- [CVE-2023-1188](https://insights.sbomify.com/CVE-2023-1188/): FabulaTech Webcam for Remote Desktop IoControlCode ftwebcam.sys 0x222018 denial of service (low 3.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-1186 and fix it if it is affected.

What it is: CVE-2023-1186 is a low-severity vulnerability in FabulaTech Webcam for Remote Desktop, published on 6 Mar 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-2023-1186 in the wild and no public exploit code.

Affected product: FabulaTech Webcam for Remote Desktop. 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-2023-1186/ (Markdown: https://insights.sbomify.com/CVE-2023-1186/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-1186
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-1186
- OSV: https://osv.dev/vulnerability/CVE-2023-1186

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-1186/
Summaries are generated and may contain mistakes; the official description above is the record.