High severity · published Sep 8, 2026
CVE-2026-9034
Mali GPU Userspace Driver allows access to already freed memory
7.8
CVSS
0.2%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 5% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
A5
Arm 5th Gen GPU Architecture Userspace Driver · Arm Ltd
r42p0 through r49p5; r50p0 through r54p3; r55p0 · source: vendor
BG
Bifrost GPU Userspace Driver · Arm Ltd
r42p0 through r49p5; r50p0 through r51p0; r54p1 through r54p3 · source: vendor
VG
Valhall GPU Userspace Driver · Arm Ltd
r42p0 through r49p5; r50p0 through r54p3; r55p0 · source: vendor
Affected product
A5
Arm 5th Gen GPU Architecture Userspace Driver
Arm Ltd
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-9034
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-9034
support.arm.com
https://support.arm.com/documentation/111552/1-0/?lang=en
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