# CVE-2025-58407: GPU DDK - TOCTOU bug affecting psFWMemContext->uiPageCatBaseRegSet

> A TOCTOU race condition in the GPU driver allows a guest VM to escape isolation and read or write arbitrary memory, requiring a patch.

- **Severity:** High 7.4 (`CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 17 Nov 2025
- **Updated:** 17 Nov 2025
- **Also known as:** A-449121737, ASB-A-449121737, GHSA-2pf4-7467-2jm6

## What is CVE-2025-58407?

CVE-2025-58407 is a high-severity vulnerability in Imagination Technologies Graphics DDK, published on 17 Nov 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Kernel or driver software installed on a Guest VM may post improper commands to the GPU Firmware to exploit a TOCTOU race condition and trigger a read and/or write of data outside the allotted memory escaping the virtual machine.

Weakness: CWE-367 (Time-of-check Time-of-use (TOCTOU) Race Condition)

## Which versions are affected by CVE-2025-58407?

It affects 1 product.


Products: Imaginationtech Ddk.

## How do I fix CVE-2025-58407?

Apply the vendor's patch.

## Is CVE-2025-58407 being exploited?

There is no known exploitation of CVE-2025-58407 in the wild and no public exploit code.

## Other vulnerabilities in Imagination Technologies Graphics DDK

- [CVE-2026-16280](https://insights.sbomify.com/CVE-2026-16280/): GPU DDK - Integer overflow in _PMRLogicalOffsetToPhysicalOffset (critical 9.8)
- [CVE-2025-13952](https://insights.sbomify.com/CVE-2025-13952/): GPU DDK - libusc UAF via WebGPU shaders at MergeConsecutiveBarriersBP (critical 9.8)
- [CVE-2026-21732](https://insights.sbomify.com/CVE-2026-21732/): GPU DDK - libusc OOB write at ConvertSwitchToArrayLookupBP during WebGPU shader compilation (critical 9.6)
- [CVE-2025-25176](https://insights.sbomify.com/CVE-2025-25176/): GPU DDK - GPU Register value contents leaked from secure workloads to non-secure world (critical 9.1)
- [CVE-2025-58411](https://insights.sbomify.com/CVE-2025-58411/): GPU DDK - Reservation::psMappedPMR can change while used by a freelist -> UAF (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-58407 and fix it if it is affected.

What it is: CVE-2025-58407 is a high-severity vulnerability in Imagination Technologies Graphics DDK, published on 17 Nov 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2025-58407 in the wild and no public exploit code.

Affected product: Imagination Technologies Graphics DDK. 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-2025-58407/ (Markdown: https://insights.sbomify.com/CVE-2025-58407/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-58407
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-58407
- OSV: https://osv.dev/vulnerability/CVE-2025-58407

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-58407/
Summaries are generated and may contain mistakes; the official description above is the record.