EUVD-2026-72793Severity by source
AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Local unprivileged access with low complexity; limited read/write to freed memory within driver scope; no availability impact per vendor assessment.
Primary rating from Vendor (Arm).
CVSS VectorVendor: Arm
Lifecycle Timeline
4DescriptionCVE.org
Use After Free vulnerability in Arm Ltd Bifrost GPU Kernel Driver, Arm Ltd Valhall GPU Kernel Driver, Arm Ltd Arm 5th Gen GPU Architecture Kernel Driver allows a local non-privileged user process to perform valid GPU memory processing operations to access already freed memory.
This issue affects Bifrost GPU Kernel Driver: from r41p0 through r49p5, from r50p0 through r51p0, from r54p1 through r54p2; Valhall GPU Kernel Driver: from r41p0 through r49p5, from r50p0 through r54p3, r55p0; Arm 5th Gen GPU Architecture Kernel Driver: from r41p0 through r49p5, from r50p0 through r54p3, r55p0.
AnalysisAI
Use-after-free in Arm's Bifrost, Valhall, and 5th Gen GPU kernel drivers allows a local unprivileged process to access already-freed GPU memory through valid GPU memory processing operations, resulting in limited confidentiality and integrity impact against the kernel driver. The flaw spans a wide range of driver versions across all three GPU architectures, affecting the enormous ecosystem of Android and embedded devices powered by Arm Mali GPUs. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The attacker must have local unprivileged code execution on a device whose GPU kernel driver falls within the affected version ranges for Bifrost, Valhall, or Arm 5th Gen architecture. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | CVSS 3.1 scores this at 4.4 (Medium), reflecting AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N - a local, low-complexity, low-privilege attack with limited impact and no scope change. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Consult the Arm security advisory at https://support.arm.com/documentation/111552/1-0/?lang=en for the specific patched driver revisions for each GPU architecture family. … Detailed patch versions, workarounds, and compensating controls in full report. |
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External POC / Exploit Code
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