Memory leak vulnerability in Mali GPU Kernel Driver in Midgard GPU Kernel Driver all versions from r6p0 - r32p0, Bifrost GPU Kernel Driver…

published 2023-04-06 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-29957

cvss: 3.3; version 3.1, CNA
cisa kev: Exploited; added 2023-04-07
epss: 1.2%; EPSS 1.2% chance of exploitation in 30 days, percentile 68%
public exploits: 0; none known

Memory leak vulnerability in Mali GPU Kernel Driver in Midgard GPU Kernel Driver all versions from r6p0 - r32p0, Bifrost GPU Kernel Driver all versions from r0p0 - r42p0, Valhall GPU Kernel Driver all versions from r19p0 - r42p0, and Avalon GPU Kernel Driver all versions from r41p0 - r42p0 allows a non-privileged user to make valid GPU processing operations that expose sensitive kernel metadata.

Patch / fix

cisa required action Apply updates per vendor instructions.

fixed in 3

arm 5th_gen_gpu_architecture_kernel_driver r43p0
arm bifrost_gpu_kernel_driver r43p0
arm valhall_gpu_kernel_driver r43p0

Timeline

2023-01-12 Found exploited as a 0-day (Project Zero)
2023-03-31 0-day patched (Project Zero)
2023-04-06 Published
2023-04-07 Added to CISA KEV
2023-04-28 CISA patch deadline
2024-01-19 CISA SSVC: exploitation active

Known exploited

Added: 3 y ago (2023-04-07)
Patch by: 2023-04-28 (3 y ago)
Ransomware: Not known
Required action: Apply updates per vendor instructions.
Vendor, product: Arm, Mali Graphics Processing Unit (GPU)
CISA name: Arm Mali GPU Kernel Driver Information Disclosure Vulnerability

Zero-day

Detected in real attacks while still unknown to the vendor and the public, per Google Project Zero's 0day In-the-Wild tracker.

Found: 2023-01-12
Patched: 2023-03-31
Details: project zero tracker

CISA SSVC

Exploitation: Active, exploited in the wild
Automatable: no
Technical impact: partial
Assessed: 2 y ago (2024-01-19)

Exploit prediction

1.22% chance of exploitation in the next 30 days, higher than 68% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CISA ADP	3.1	3.3	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
NVD	3.1	3.3	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CNA	3.1	3.3	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Classification

Weakness

CWE-401 Missing Release of Memory after Effective Lifetime

References

developer.arm.com /Arm%20Security%20Center/Mali%20GPU%20Driver%20Vulnerabilities
vendor-advisory
cybersecurity-help.cz /vdb/SB2023033049
third-party-advisory
cybersecurity-help.cz /vulnerabilities/74210/
third-party-advisory
cisa.gov /known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-26083
government-resource, us-government-resource

Sources

CVE List CVE-2023-26083
NVD CVE-2023-26083

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary