# CVE-2026-72078: Input: ims-pcu - validate control endpoint type

> A malicious USB device can trigger kernel warnings or undefined behavior in the ims-pcu driver by providing an invalid endpoint type.

- **Severity:** Not scored
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** A user has to click or open something
- **Fix available:** Yes
- **Published:** 15 Aug 2026
- **Updated:** 17 Aug 2026
- **Also known as:** BELL-CVE-2026-72078, DEBIAN-CVE-2026-72078, GHSA-2f5c-jpwh-v8v6, UBUNTU-CVE-2026-72078

## What is CVE-2026-72078?

CVE-2026-72078 is a vulnerability in Linux, published on 15 Aug 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

### Official description

In the Linux kernel, the following vulnerability has been resolved:

Input: ims-pcu - validate control endpoint type

The driver currently assumes that the first endpoint of the control
interface is an interrupt IN endpoint without verifying it. A malicious
device could provide a different endpoint type, which would then be
passed to usb_fill_int_urb(), potentially leading to kernel warnings
or undefined behavior.

Verify that the control endpoint is an interrupt IN endpoint.

## Which versions are affected by CVE-2026-72078?


## How do I fix CVE-2026-72078?

Apply the vendor's patch.

## Is CVE-2026-72078 being exploited?

There is no known exploitation of CVE-2026-72078 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-72078 and fix it if it is affected.

What it is: CVE-2026-72078 is a vulnerability in Linux, published on 15 Aug 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2026-72078 in the wild and no public exploit code.

Affected product: Linux. 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-2026-72078/ (Markdown: https://insights.sbomify.com/CVE-2026-72078/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-72078
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-72078
- OSV: https://osv.dev/vulnerability/CVE-2026-72078

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-72078/
Summaries are generated and may contain mistakes; the official description above is the record.