Skip to content
Noroxi
NVD / CVE Program· CNA Arm

CVE-2023-32804: Mali GPU Userspace Driver can make an Out-of-Bounds access

Noroxi assessment

Priority: Monitor (action score 31/100)

  • 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: 0.25% (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 Userspace Driver r44p1; Arm Ltd Bifrost GPU Userspace Driver r44p1; Arm Ltd Valhall GPU Userspace Driver r44p1.
  • 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 Userspace Driver r44p1; Arm Ltd Bifrost GPU Userspace Driver r44p1; Arm Ltd Valhall GPU Userspace Driver r44p1 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

Out-of-bounds Write vulnerability in Arm Ltd Midgard GPU Userspace Driver, Arm Ltd Bifrost GPU Userspace Driver, Arm Ltd Valhall GPU Userspace Driver, Arm Ltd Arm 5th Gen GPU Architecture Userspace Driver allows a local non-privileged user to write a constant pattern to a limited amount of memory not allocated by the user space driver.This issue affects Midgard GPU Userspace Driver: from r0p0 through r32p0; Bifrost GPU Userspace Driver: from r0p0 through r44p0; Valhall GPU Userspace Driver: from r19p0 through r44p0; Arm 5th Gen GPU Architecture Userspace Driver: from r41p0 through r44p0.

HighCVSS 7.8 · v3.1—No exploit Fix available
Published
Dec 4, 2023
Updated
Jun 17, 2026
EPSS
0.2% · 16th percentile

Report tools

JSON

Action score

31

Monitor

Low priority for now.

CVSS
31 / 40 · 7.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

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.

Follow CVE-2023-32804

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

One daily email digest (06:00 UTC); connect a webhook for KEV listings and weaponized exploits instantly.

Your free account also gets you

Running WordPress? Scan your site free with WP Lens

  • Stack alerts: add the products and versions you run, get the new CVEs that affect them
  • Uptime monitoring: 1 site, instant email when it goes down
  • Add your domain: subdomains and takeover risk scanned every week (1 domain)
  • 10 scans an hour on the security tools (3 a day without an account), an API key and MCP
  • All your scans in one panel: findings, what changed in the last scan, a report per domain or per client (PDF, share link)
All free tools

Sign up with email · Have an account? Sign in

Free account, no card. Unfollow any time.

Don't want an account? Get "Exploited this week" by email every MondayDon't want an account? RSS feed for arm records

Running WordPress? Scan your site free with WP Lens

Is your version affected? Check it

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.

We use this product, ask for help

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.

VendorProduct
arm5th gen gpu architecture kernel driver
armbifrost gpu kernel driver
armmidgard gpu kernel driver
armvalhall 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 5th gen gpu architecture kernel driverr41p0 and later · up to r44p0 inclusive
  • arm bifrost gpu kernel driverr0p0 and later · up to r44p0 inclusive
  • arm midgard gpu kernel driverr0p0 and later · up to r32p0 inclusive
  • arm valhall gpu kernel driverr19p0 and later · up to r44p0 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 Userspace Driver

    • r41p0 and later · up to and including r44p0affected · patchfixed in r44p1

  • Arm Ltd Bifrost GPU Userspace Driver

    • r0p0 and later · up to and including r44p0affected · patchfixed in r44p1

  • Arm Ltd Midgard GPU Userspace Driver

    • r0p0 and later · up to and including r32p0affected · patch

  • Arm Ltd Valhall GPU Userspace Driver

    • r19p0 and later · up to and including r44p0affected · patchfixed in r44p1

Same product

arm: all records

Other highest-scoring records for the same primary product.

  • CVE-2023-4211Mali GPU Kernel Driver Allows Improper GPU Memory Processing OperationsKEV
    52Plan
  • CVE-2023-26083Memory leak vulnerability in Mali GPU Kernel Driver in Midgard GPU Kernel Driver all versions from r6p0 - r32p0, Bifrost GPU Kernel Driver aKEV
    43Plan
  • CVE-2023-6143Mali GPU Kernel Driver allows improper GPU memory processing operations
    33Monitor

Published before and after this one in the same product

  • ← EarlierCVE-2023-5427Dec 1, 2023 · Mali GPU Kernel Driver allows improper GPU processing operations
    31Monitor
  • Later →CVE-2023-5643Feb 5, 2024 · Mali GPU Kernel Driver allows improper GPU memory processing operations
    31Monitor
  • Later →CVE-2023-6241Mar 4, 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 / packageFixed versionSource
Arm Ltd Arm 5th Gen GPU Architecture Userspace Driverr44p1Vendor (CNA)
Arm Ltd Bifrost GPU Userspace Driverr44p1Vendor (CNA)
Arm Ltd Valhall GPU Userspace Driverr44p1Vendor (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.

No credits in the CNA record.

Variant candidates

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

  • CVE-2023-564363 days apartMali GPU Kernel Driver allows improper GPU memory processing operations
    31Monitor

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

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.

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
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-787 · Out-of-bounds Write

CVSS vector

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

nvd-primary

Attack context

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

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓

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

References

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

All records