Medium severity · published Sep 8, 2026
CVE-2026-12387
Mali GPU Kernel Driver allows access to already freed memory
5.1
CVSS
0.2%
EPSS
No
On KEV
Description
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 access already freed memory.
This issue affects Bifrost GPU Kernel Driver: from r41p0 through r49p5, from r50p0 through r51p0, from r54p1 through r54p2; Valhall GPU Kernel Driver: from r41p0 through r49p5, from r50p0 through r54p3, r55p0; Arm 5th Gen GPU Architecture Kernel Driver: from r41p0 through r49p5, from r50p0 through r54p3, r55p0.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
None
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 Kernel Driver · Arm Ltd
r41p0 through r49p5; r50p0 through r54p3; r55p0 · source: vendor
BG
Bifrost GPU Kernel Driver · Arm Ltd
r41p0 through r49p5; r50p0 through r51p0; r54p1 through r54p2 · source: vendor
VG
Valhall GPU Kernel Driver · Arm Ltd
r41p0 through r49p5; r50p0 through r54p3; r55p0 · source: vendor
Affected product
A5
Arm 5th Gen GPU Architecture Kernel Driver
Arm Ltd
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-12387
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-12387
support.arm.com
https://support.arm.com/documentation/111552/1-0/?lang=en
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