EUVD-2026-72796
GHSA-5h5m-cgjw-cjpp
Severity by source
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Local access with low privileges to submit GPU commands; no interaction needed; full driver-context C/I/A impact with no scope change to external components.
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 improper GPU memory processing operations to access already freed memory.
This issue affects Bifrost GPU Kernel Driver: from r49p3 through r49p5, r51p0, from r54p1 through r54p2; Valhall GPU Kernel Driver: from r49p3 through r49p5, from r51p0 through r54p3, r55p0; Arm 5th Gen GPU Architecture Kernel Driver: from r49p3 through r49p5, from r51p0 through r54p3, r55p0.
AnalysisAI
Use-after-free in Arm's Bifrost, Valhall, and 5th Gen GPU Architecture kernel drivers allows a local non-privileged process to access freed GPU memory, yielding full confidentiality, integrity, and availability impact within the kernel driver context. Affected revisions span a wide range across all three driver families - from r49p3 through r55p0 depending on the product line - placing a large population of Android and embedded Arm devices in scope. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires a local non-privileged user session on the target device and the ability to submit GPU commands - meaning access to the GPU device interface (e.g., /dev/mali or equivalent ioctl surface). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 7.8 vector (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) is well-calibrated: local access with only low privileges and no user interaction or special conditions required, combined with full C/I/A impact on the kernel driver context. … 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 | Upgrade to a fixed driver revision as directed by the Arm security advisory at https://support.arm.com/documentation/111552/1-0/?lang=en. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all systems running Arm GPU drivers in affected versions (r49p3 through r55p0) across your Android fleet, embedded systems, and IoT deployments. …
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External POC / Exploit Code
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