Buffer overflow in Arm 5th Gen GPU Architecture Userspace Driver
CVE-2025-1246
Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in Arm Ltd Bifrost GPU Userspace Driver, Arm Ltd Valhall GPU Userspace Driver, Arm Ltd Arm 5th Gen GPU Architecture Userspace Driver allows a non-privileged user process to perform valid GPU processing operations, including via WebGL or WebGPU, to access outside of buffer bounds.This issue affects Bifrost GPU Userspace Driver: from r18p0 through r49p3, from r50p0 through r51p0; Valhall GPU Userspace Driver: from r28p0 through r49p3, from r50p0 through r54p0; Arm 5th Gen GPU Architecture Userspace Driver: from r41p0 through r49p3, from r50p0 through r54p0.
Vulnerability class: Buffer Overflow
EPSS: 0.001 (3.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Arm 5th_gen_gpu_architecture_userspace_driver
- Arm Bifrost_gpu_userspace_driver — versions r50p0, r51p0
- Arm Valhall_gpu_userspace_driver
- Arm Ltd 5th Gen Gpu Architecture Userspace Driver — versions r41p0, r50p0
- Arm Ltd Bifrost Gpu Userspace Driver — versions r18p0, r50p0
- Arm Ltd Valhall Gpu Userspace Driver — versions r28p0, r50p0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- arm-security@arm.com (Vendor Advisory)
Frequently asked questions
- What is CVE-2025-1246?
- CVE-2025-1246 is a high-severity vulnerability in Arm 5th Gen GPU Architecture Userspace Driver, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.8/10. Published 2025-06-02.
- How severe is CVE-2025-1246?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2025-1246 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.