# CVE-2026-16280: GPU DDK - Integer overflow in _PMRLogicalOffsetToPhysicalOffset


- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Fix available:** No
- **Published:** 24 Jul 2026
- **Updated:** 27 Jul 2026
- **Also known as:** GHSA-hw4h-9c69-9q35

## What is CVE-2026-16280?

CVE-2026-16280 is a critical vulnerability in Imagination Technologies Graphics DDK, published on 24 Jul 2026. 

### Official description

An integer overflow when calculating physical offsets for sparse PMRs may result in 32-bit truncation of address computations for PMRs larger than 4 GB. This can lead to incorrect GPU MMU mappings and may allow a non-privileged user to trigger access to unintended physical memory, resulting in memory corruption or information disclosure.

Weakness: CWE-190 (Integer Overflow or Wraparound)

## Which versions are affected by CVE-2026-16280?

It affects 1 product.


Products: Imaginationtech Ddk.

## How do I fix CVE-2026-16280?

No fix has been published for CVE-2026-16280 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-16280 being exploited?

There is no known exploitation of CVE-2026-16280 in the wild and no public exploit code.

## Other vulnerabilities in Imagination Technologies Graphics DDK

- [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)
- [CVE-2025-0467](https://insights.sbomify.com/CVE-2025-0467/): GPU DDK - rgxfw_hwperf_get_packet_buffer OOB write (high 8.2)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-16280 and fix it if it is affected.

What it is: CVE-2026-16280 is a critical vulnerability in Imagination Technologies Graphics DDK, published on 24 Jul 2026. 
Exploitation: There is no known exploitation of CVE-2026-16280 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-2026-16280/ (Markdown: https://insights.sbomify.com/CVE-2026-16280/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-16280
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-16280
- OSV: https://osv.dev/vulnerability/CVE-2026-16280

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-16280/
Summaries are generated and may contain mistakes; the official description above is the record.