Vulnerability in Arm Ltd 5th Gen GPU Architecture Kernel Driver
CVE-2026-9040
A race condition 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 cause a denial of service or disclose sensitive information. This issue affects Bifrost GPU Kernel Driver: from r12p0 through r49p5, from r50p0 through r51p0, from r54p1 through r54p2; Valhall GPU Kernel Driver: from r19p0 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: Race Condition
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H.
EPSS exploit prediction
EPSS: 0.001 (2.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 3rd percentile — 2.5% 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-2026-9040?
- CVE-2026-9040 is a high-severity vulnerability in Arm Ltd 5th Gen GPU Architecture Kernel Driver, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 7.7/10. Published 2026-09-08.
- How severe is CVE-2026-9040?
- High severity. CVSS v3 base score is 7.7 out of 10.