Vulnerability details
CVE-2026-9034
Arm 5th Gen GPU Architecture Userspace DriverArm Bifrost GPU Userspace DriverArm Valhall GPU Userspace Driver
Mali GPU Userspace Driver allows access to already freed memory
CVSS 3.1
7.8High
Official description
Use After Free 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 already freed memory. This issue affects Bifrost GPU Userspace Driver: from r42p0 through r49p5, from r50p0 through r51p0, from r54p1 through r54p3; Valhall GPU Userspace Driver: from r42p0 through r49p5, from r50p0 through r54p3, r55p0; Arm 5th Gen GPU Architecture Userspace Driver: from r42p0 through r49p5, from r50p0 through r54p3, r55p0.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 7.8High | 3.1 | CISA ADP / Vulnrichment (CISA-ADP) | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Arm Ltd | Arm 5th Gen GPU Architecture Userspace Driver | r55p0 | CVEProject cvelistV5 (CNA) |
| Arm Ltd | Arm 5th Gen GPU Architecture Userspace Driver | r42p0 ≤ v ≤ r49p5 | CVEProject cvelistV5 (CNA) |
| Arm Ltd | Arm 5th Gen GPU Architecture Userspace Driver | r50p0 ≤ v ≤ r54p3 | CVEProject cvelistV5 (CNA) |
| Arm Ltd | Bifrost GPU Userspace Driver | r42p0 ≤ v ≤ r49p5 | CVEProject cvelistV5 (CNA) |
| Arm Ltd | Bifrost GPU Userspace Driver | r50p0 ≤ v ≤ r51p0 | CVEProject cvelistV5 (CNA) |
| Arm Ltd | Bifrost GPU Userspace Driver | r54p1 ≤ v ≤ r54p3 | CVEProject cvelistV5 (CNA) |
| Arm Ltd | Valhall GPU Userspace Driver | r55p0 | CVEProject cvelistV5 (CNA) |
| Arm Ltd | Valhall GPU Userspace Driver | r42p0 ≤ v ≤ r49p5 | CVEProject cvelistV5 (CNA) |
| Arm Ltd | Valhall GPU Userspace Driver | r50p0 ≤ v ≤ r54p3 | CVEProject cvelistV5 (CNA) |
References and advisories
1
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Details
- Published
- 2026-09-08
- Last updated
- 2026-09-10
- State
- Published
- Assigner (CNA)
- Arm
Exploit prediction (EPSS)
0.16%
Probability of exploitation in 30 days
5.4%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- CWE-416Use After Free