CVE-2025-1246

Mali GPU Userspace Driver allows an Out-of-Bounds access

HIGH

7.8

CVSS Score

Published: June 2, 2025 at 11:06 AM UTC

Updated: June 17, 2026 at 08:38 AM UTC

3 products affected across 1 vendorValhall GPU Userspace DriverArm 5th Gen GPU Architecture Userspace DriverBifrost GPU Userspace Driver

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Severity

HIGH7.8

Exploit prediction

EPSS 0.2%

SSVC

No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Arm 5th Gen GPU Architecture Userspace Driver · Arm

95%

r41p0 ≤ v ≤ r49p3r41p0 ≤ v < r49p4r50p0 ≤ v ≤ r54p0r50p0 ≤ v < r54p1r41p0 r50p0

Affected range stops below r49p4, so it looks safe — our inference, not a vendor statement

Affected range stops below r54p1, so it looks safe — our inference, not a vendor statement

Bifrost GPU Userspace Driver · Arm

95%

r18p0 ≤ v ≤ r49p3r48p0 ≤ v < r49p4r50p0 ≤ v ≤ r51p0r18p0 r50p0 r51p0

Affected range stops below r49p4, so it looks safe — our inference, not a vendor statement

Valhall GPU Userspace Driver · Arm

95%

r28p0 ≤ v ≤ r49p3r28p0 ≤ v < r49p4r50p0 ≤ v ≤ r54p0r50p0 ≤ v < r54p1r28p0 r50p0

Affected range stops below r49p4, so it looks safe — our inference, not a vendor statement

Affected range stops below r54p1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

https://developer.arm.com/documentation/110466/latest/

References (1)

Vendor Advisory

Source: [email protected]

https://developer.arm.com/documentation/110466/latest/

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.8HIGHCISA-ADP

Attack Vector: LOCAL
Complexity: LOW
Privileges: LOW
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: HIGH
Integrity: HIGH
Availability: HIGH

Vector?

Quick Info

StatusANALYZED

CWE

CWE-119

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