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Bifrost Gpu Kernel Driver CVE-2025-0819

| EUVDEUVD-2025-16638 HIGH
Use After Free (CWE-416)
2025-06-02 arm-security@arm.com
7.8
CVSS 3.1 · NVD
View

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A06:2021 - Vulnerable and Outdated Components
ASVS 5.0
V15 - Secure Coding and Architecture Memory lifecycle management
MITRE ATT&CK

2 techniques across 2 tactics: Execution, Privilege Escalation

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Impact

CVSS 7.8. EPSS 0.0%. No patch confirmed.

Exploit ScenarioDerived

An attacker could exploit this vulnerability in Arm Ltd Bifrost GPU Kernel Driver to compromise the security of affected deployments, potentially impacting confidentiality, integrity, or availability.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 0.0% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 14, 2026

A security vulnerability in Arm Ltd Bifrost GPU Kernel Driver (CVSS 7.8) that allows a local non-privileged user process. High severity vulnerability requiring prompt remediation.

Earlier versions of this analysis (1)
v1 Mar 14, 2026 - 16:47 CVSS 7.8

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 p

RemediationAI

Monitor vendor channels for patch availability.

Affected VersionsENISA

Arm 5th Gen GPU Architecture Kernel Driver r44p0 ≤r49p3
Arm 5th Gen GPU Architecture Kernel Driver r50p0 ≤r54p0
Valhall GPU Kernel Driver r50p0 ≤r54p0
Valhall GPU Kernel Driver r44p0 ≤r49p3
Bifrost GPU Kernel Driver r50p0 ≤r51p0
Bifrost GPU Kernel Driver r44p0 ≤r49p3

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

CWE-416 (Use After Free). CVSS 7.8 indicates high severity. Affects Arm Ltd Bifrost GPU Kernel Driver.

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  • Check this CVE against your own stack and servers
  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 7.8 HIGH
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

DescriptionCVE.org

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 gain access to already freed memory.This issue affects Bifrost GPU Kernel Driver: from r44p0 through r49p3, from r50p0 through r51p0; Valhall GPU Kernel Driver: from r44p0 through r49p3, from r50p0 through r54p0; Arm 5th Gen GPU Architecture Kernel Driver: from r44p0 through r49p3, from r50p0 through r54p0.

Executive ViewAI

Why It Matters

A use-after-free vulnerability in Arm GPU kernel drivers affects devices using Bifrost, Valhall, and 5th Gen GPU architectures, allowing local attackers to access freed memory and potentially escalate privileges or compromise system integrity. Organizations with Android devices, embedded systems, or edge computing platforms using affected Arm GPUs require immediate assessment and mitigation planning, as no patch is currently available.

Business Impact: High
Compensating Controls

Restrict local user account creation and SSH access on affected systems; enforce mandatory access controls (SELinux/AppArmor) with strict GPU resource isolation; disable GPU compute features if not critical to operations; implement kernel-level auditing for GPU memory operations; isolate affected devices from sensitive networks; deploy endpoint detection and response (EDR) tools to monitor for privilege escalation attempts; require multi-factor authentication for local system access.

Threat Intelligence Overview

EPSS Score
0.0%
Top 92% exploitable
Data Quality
4 sources
Confidence: Medium

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC No
EPSS 0.0%
Patch available No
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Small
Automatable· derived
No
Human Impact
High

Priority Score

39
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +39
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.

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