CVE-2025-13952 GPU DDK - libusc UAF via WebGPU shaders at MergeConsecutiveBarriersBP
A use-after-free in the Android GPU shader compiler allows attackers to execute code or escalate privileges via malicious web content.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-13952?
CVE-2025-13952 is a critical use after free vulnerability in Imagination Technologies Graphics DDK, published on 24 Jan 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A web page that contains unusual GPU shader code is loaded from the Internet into the GPU compiler process triggers a write use-after-free crash in the GPU shader compiler library. On certain platforms, when the compiler process has system privileges this could enable further exploits on the device.
The shader code contained in the web page executes a path in the compiler that held onto an out of date pointer, pointing to a freed memory object.
Weakness: CWE-416
Which versions are affected by CVE-2025-13952?
It affects 1 product.
Products include Imaginationtech Ddk.
How do I fix CVE-2025-13952?
Apply the vendor's patch.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2025-13952 being exploited?
There is no known exploitation of CVE-2025-13952 in the wild and no public exploit code.
Other vulnerabilities in Imagination Technologies Graphics DDK
- CVE-2026-16280 GPU DDK - Integer overflow in _PMRLogicalOffsetToPhysicalOffset
- CVE-2026-21732 GPU DDK - libusc OOB write at ConvertSwitchToArrayLookupBP during WebGPU shader compilation
- CVE-2025-25176 GPU DDK - GPU Register value contents leaked from secure workloads to non-secure world
- CVE-2025-58411 GPU DDK - Reservation::psMappedPMR can change while used by a freelist -> UAF
- CVE-2025-0467 GPU DDK - rgxfw_hwperf_get_packet_buffer OOB write
Sources
Also known as A-464496427, ASB-A-464496427, GHSA-2275-6765-h9pg.