# CVE-2023-26083: Arm Mali GPU Kernel Driver Information Disclosure

> A non-privileged user can expose sensitive kernel metadata via valid GPU operations in the Mali GPU Kernel Driver on Android.

- **Severity:** Low 3.3 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N`)
- **Exploited in the wild:** Yes, since 7 Apr 2023 (CISA KEV)
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 6 Apr 2023
- **Updated:** 21 Oct 2025
- **Also known as:** A-272073598, ASB-A-272073598, GHSA-xfv3-jp8h-q7v6

## What is CVE-2023-26083?

CVE-2023-26083 is a low-severity vulnerability in Arm Valhall Gpu Kernel Driver, published on 6 Apr 2023. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Memory leak vulnerability in Mali GPU Kernel Driver in Midgard GPU Kernel Driver all versions from r6p0 - r32p0, Bifrost GPU Kernel Driver all versions from r0p0 - r42p0, Valhall GPU Kernel Driver all versions from r19p0 - r42p0, and Avalon GPU Kernel Driver all versions from r41p0 - r42p0 allows a non-privileged user to make valid GPU processing operations that expose sensitive kernel metadata.

Weakness: CWE-401 (Missing Release of Memory after Effective Lifetime)

## Which versions are affected by CVE-2023-26083?

It affects 4 products.


Products: Arm 5th Gen Gpu Architecture Kernel Driver, Arm Bifrost Gpu Kernel Driver, Arm Midgard Gpu Kernel Driver, Arm Valhall Gpu Kernel Driver.

## How do I fix CVE-2023-26083?

Apply the vendor's patch. US federal agencies must fix it by 28 Apr 2023.

## Is CVE-2023-26083 being exploited?

Yes. Attackers have exploited CVE-2023-26083 in the wild since at least 7 Apr 2023.

Public exploit code:

- CVE-2023-26083-Mali-InfoLeak-PoC (github_poc): https://github.com/noverisp3/CVE-2023-26083

## Other vulnerabilities in Arm Valhall Gpu Kernel Driver

- [CVE-2023-4211](https://insights.sbomify.com/CVE-2023-4211/): Arm Mali GPU Kernel Driver Use-After-Free (medium 5.5, exploited in the wild)
- [CVE-2023-6143](https://insights.sbomify.com/CVE-2023-6143/): Mali GPU Kernel Driver allows improper GPU memory processing operations (high 8.4)
- [CVE-2025-0073](https://insights.sbomify.com/CVE-2025-0073/): Mali GPU Kernel Driver allows improper GPU memory processing operations (high 7.8)
- [CVE-2025-0819](https://insights.sbomify.com/CVE-2025-0819/): Mali GPU Kernel Driver allows access to already freed memory (high 7.8)
- [CVE-2025-0072](https://insights.sbomify.com/CVE-2025-0072/): Mali GPU Kernel Driver allows improper GPU memory processing operations (high 7.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-26083 and fix it if it is affected.

What it is: CVE-2023-26083 is a low-severity vulnerability in Arm Valhall Gpu Kernel Driver, published on 6 Apr 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: Yes. Attackers have exploited CVE-2023-26083 in the wild since at least 7 Apr 2023.

Affected product: Arm Valhall Gpu Kernel Driver. 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-2023-26083/ (Markdown: https://insights.sbomify.com/CVE-2023-26083/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-26083
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-26083
- OSV: https://osv.dev/vulnerability/CVE-2023-26083

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From sbomify Insights: https://insights.sbomify.com/CVE-2023-26083/
Summaries are generated and may contain mistakes; the official description above is the record.