Use After Free in Arm Ltd 5th Gen GPU Architecture Kernel Driver
CVE-2026-12387
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.
Vulnerability class: Use-After-Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.1 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.001 (1.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 1st percentile — 1.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: 0.000
Affected products
- Arm Ltd 5th Gen GPU Architecture Kernel Driver — versions r55p0
- Arm Ltd Bifrost GPU Kernel Driver
- Arm Ltd Valhall GPU Kernel Driver — versions r55p0
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-12387?
- CVE-2026-12387 is a medium-severity vulnerability in Arm Ltd 5th Gen GPU Architecture Kernel Driver, classified under Use After Free. CVSS score: 5.1/10. Published 2026-09-08.
- How severe is CVE-2026-12387?
- Medium severity. CVSS v3 base score is 5.1 out of 10.