Vulnerability Intelligence Report
Mali GPU Kernel Driver allows improper GPU processing operations
CVE-2023-5427
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 to make improper GPU processing operations to gain access to already freed memory.This issue affects Bifrost GPU Kernel Driver: from r44p0 through r45p0; Valhall GPU Kernel Driver: from r44p0 through r45p0; Arm 5th Gen GPU Architecture Kernel Driver: from r44p0 through r45p0.
No Active Exploit Signals
CVSS Base Score
7.8
HIGH
Exploitability:1.9
Impact Score:5.9
EPSS Probability:0.33%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-416 ↗CWE-416 Use After Free
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| Arm Ltd | Bifrost GPU Kernel Driver | r44p0 <= r45p0 (affected) |
| Arm Ltd | Valhall GPU Kernel Driver | r44p0 <= r45p0 (affected) |
| Arm Ltd | Arm 5th Gen GPU Architecture Kernel Driver | r44p0 <= r45p0 (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
EPSS Score
0.334%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Arm Limited · Open Source · UK |
| Reserved | 2023-10-05T19:12:49 |
| Published | 2023-12-01T10:13:49 |
| Patch Date | 2023-12-01 |
| Last Updated | 2026-02-25T16:41:07 |
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