---
title: "CVE-2023-4211: Arm Mali GPU Kernel Driver Use-After-Free Vulnerability"
url: https://erroneo.us/security/cve/CVE-2023-4211/
description: "CVE-2023-4211 (Arm Mali GPU Kernel Driver): Exploited in the wild (CISA KEV). A local non-privileged user can make improper GPU memory processing operations…"
type: vulnerability-record
section: "Security Digest"
date_published: 2023-10-01
date_modified: 2025-10-21
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2023-4211"
kev: true
cvss: 5.5
epss: 0.01098
license: All rights reserved. Quote with attribution and a link.
---

# CVE-2023-4211: Arm Mali GPU Kernel Driver Use-After-Free Vulnerability

**Signal:** Exploited: patch now if you run it. CISA has confirmed exploitation in the wild. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- Yes, if you run Arm Mali GPU Kernel Driver. CISA added this CVE to its Known Exploited Vulnerabilities catalog on 2023-10-03, which means there is reliable evidence of exploitation in the wild. US federal agencies must remediate by 2023-10-24 ; treat that as the outer limit, not the target.
- EPSS 1.1% , percentile 65: FIRST’s model estimates a 1.1% chance of exploitation activity in the next 30 days, higher than 65% of all scored CVEs (moderate). EPSS is a probability, not a verdict.
- Needs local access needed. Lower urgency for most teams unless an attacker could already run code on the machine.

## What it is

A local non-privileged user can make improper GPU memory processing operations to gain access to already freed memory.

## Affected products (CVE record)

- Arm Ltd Midgard GPU Kernel Driver: r12p0 <= r32p0
- Arm Ltd Bifrost GPU Kernel Driver: r0p0 <= r42p0
- Arm Ltd Valhall GPU Kernel Driver: r19p0 <= r42p0
- Arm Ltd Arm 5th Gen GPU Architecture Kernel  Driver: r41p0 <= r42p0

## Severity

- CISA-ADP CVSS 3.1: 5.5 `CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N`

## Exploitation

- CISA KEV: added 2023-10-03; federal due date 2023-10-24. Known ransomware use: Unknown.
- CISA required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
- CISA SSVC assessment: exploitation active , automatable no , technical impact total .
- FIRST EPSS (model of 2026-10-21): 1.10% probability of exploitation activity in the next 30 days; percentile 65.

## Sources

- [Listed in CISA KEV notes (developer.arm.com)](https://developer.arm.com/Arm%20Security%20Center/Mali%20GPU%20Driver%20Vulnerabilities)
- [CVE.org record CVE-2023-4211](https://www.cve.org/CVERecord?id=CVE-2023-4211)
- [NVD entry CVE-2023-4211](https://nvd.nist.gov/vuln/detail/CVE-2023-4211)
- [CISA Known Exploited Vulnerabilities catalog entry](https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-4211)

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Source page: https://erroneo.us/security/cve/CVE-2023-4211/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt