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

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

Which versions are affected by CVE-2026-16280?

It affects 1 product.

Products include 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 GPU DDK - libusc UAF via WebGPU shaders at MergeConsecutiveBarriersBP Critical 9.8
• CVE-2026-21732 GPU DDK - libusc OOB write at ConvertSwitchToArrayLookupBP during WebGPU shader compilation Critical 9.6
• CVE-2025-25176 GPU DDK - GPU Register value contents leaked from secure workloads to non-secure world Critical 9.1
• CVE-2025-58411 GPU DDK - Reservation::psMappedPMR can change while used by a freelist -> UAF High 8.8
• CVE-2025-0467 GPU DDK - rgxfw_hwperf_get_packet_buffer OOB write High 8.2

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-hw4h-9c69-9q35.