NVD / CVE Program· CNA Arm

CVE-2023-4272: Mali GPU Kernel Driver exposes sensitive data from freed memory

Noroxi assessment

Priority: Monitor (action score 22/100)

The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
Probability of exploitation in the next 30 days: 0.34% (FIRST EPSS).
Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
Fixed version: Arm Ltd Arm 5th Gen GPU Architecture Kernel Driver r42p0; Arm Ltd Bifrost GPU Kernel Driver r42p0; Arm Ltd Valhall GPU Kernel Driver r42p0.
Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Arm Ltd Arm 5th Gen GPU Architecture Kernel Driver r42p0; Arm Ltd Bifrost GPU Kernel Driver r42p0; Arm Ltd Valhall GPU Kernel Driver r42p0 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

A local non-privileged user can make GPU processing operations that expose sensitive data from previously freed memory.

MediumCVSS 5.5 · v3.1—No exploit Fix available

Published: Nov 7, 2023
Updated: Jun 17, 2026
EPSS: 0.3% · 27th percentile
CWE: CWE-200

Report tools

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Action score

Monitor

Low priority for now.

CVSS: 22 / 40 · 5.5 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 0 / 30 · 0.3%

CISA SSVC decision

Exploitation: none
Automatable: no
Technical impact: total

Vulnrichment: CISA's decision-tree inputs.

Get told when this record changes

Not in KEV: no record of exploitation in the wild
No public exploit code on record
A fix has been released

If any of these changes, we'll tell you in the daily email digest.

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

Vendor	Product	CPE
arm	bifrost gpu kernel driver	cpe:2.3:a:arm:bifrost_gpu_kernel_driver
arm	mali gpu kernel driver	cpe:2.3:a:arm:mali_gpu_kernel_driver
arm	midgard gpu kernel driver	cpe:2.3:a:arm:midgard_gpu_kernel_driver
arm	valhall gpu kernel driver	cpe:2.3:a:arm:valhall_gpu_kernel_driver

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

arm bifrost gpu kernel driverr0p0 and later · up to r41p0 inclusive
arm mali gpu kernel driverr41p0
arm midgard gpu kernel driverr8p0 and later · up to r32p0 inclusive
arm valhall gpu kernel driverr19p0 and later · up to r41p0 inclusive

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Arm). Independent of NVD's CPE analysis and usually ahead of it.

Arm Ltd Arm 5th Gen GPU Architecture Kernel Driver
- r41p0 and later · before r42p0affected · patchfixed in r42p0
Arm Ltd Bifrost GPU Kernel Driver
- r0p0 and later · before r42p0affected · patchfixed in r42p0
Arm Ltd Midgard GPU Kernel Driver
- r8p0 and later · up to and including r32p0affected · patch
Arm Ltd Valhall GPU Kernel Driver
- r19p0 and later · before r42p0affected · patchfixed in r42p0

Same product

arm: all records

Other highest-scoring records for the same primary product.

CVE-2022-38181The Arm Mali GPU kernel driver allows unprivileged users to access freed memory because GPU memory operations are mishandled.KEV
71This week
CVE-2021-28663The Arm Mali GPU kernel driver allows privilege escalation or information disclosure because GPU memory operations are mishandled, leading tKEV
69This week
CVE-2021-28664The Arm Mali GPU kernel driver allows privilege escalation or a denial of service (memory corruption) because an unprivileged user can achieKEV
67This week

Published before and after this one in the same product

← EarlierCVE-2022-46891Jan 17, 2023 · An issue was discovered in the Arm Mali GPU Kernel Driver.
35Monitor
← EarlierCVE-2023-33200Oct 3, 2023 · Mali GPU Kernel Driver Allows Improper GPU Memory Processing Operations
18Monitor
Later →CVE-2023-5249Feb 5, 2024 · Mali GPU Kernel Driver allows improper GPU memory processing operations
28Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / package	Fixed version	Source
Arm Ltd Arm 5th Gen GPU Architecture Kernel Driver	r42p0	Vendor (CNA)
Arm Ltd Bifrost GPU Kernel Driver	r42p0	Vendor (CNA)
Arm Ltd Valhall GPU Kernel Driver	r42p0	Vendor (CNA)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Jann HornGooglefinder

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

ArmIntigriti · paid · up to $20,000

The product’s vendor appears in a public program. Matched by name; verify the scope text in the program.

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

TR-23-0675 · Dec 5, 2023(Google Android Güvenlik Güncellemesi)

All national notices →

Technical details

Attack conditions

Someone with local access to the system can trigger it.
A low-privileged account is enough.
No user action is required.
No special conditions are required; it is repeatable.

If successful

Confidentiality: high · data can be read
Integrity: none
Availability: none

Attack vector: Local
Attack complexity: Low
Privileges required: Low
User interaction: None
Scope: Unchanged
Confidentiality impact: High
Integrity impact: None
Availability impact: None

Weakness class (CWE)

CWE-200 · Exposure of Sensitive Information to an Unauthorized Actor

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

nvd-primary

Root cause

The extension requests broader permissions than its function needs and sends the data it collects out for purposes beyond its stated function.

The bug in code

The whole CWE-200 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

json

1{
2  "permissions": ["tabs", "<all_urls>"],
3  "background": { "service_worker": "analytics.js" }
4}

Fixed

json

1{
2  "permissions": ["activeTab"],
3  "host_permissions": ["https://yildiz.example/*"]
4}

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Attack patterns (CAPEC)

ATT&CK techniques

Change log

Fix✗ → ✓Sep 28, 2026, 10:09 PM UTC

For records you follow, these changes also arrive as notifications. →

References

developer.arm.com/Arm%20Security%20Center/Mali%20GPU%20Driver%20Vulnerabilities

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records