What’s Vulnerable › Vulnerabilities

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

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: yes — in CISA KEV since 2023-10-03
• EPSS: 1.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-10-01 · updated 2026-06-17
• Weakness: CWE-416

Description

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

Affected products

• Arm Ltd Arm 5th Gen GPU Architecture Kernel Driver: from r41p0 before r43p0 — fixed in r43p0
• Arm Ltd Bifrost GPU Kernel Driver: from r0p0 before r43p0 — fixed in r43p0
• Arm Ltd Midgard GPU Kernel Driver: from r12p0 through r32p0
• Arm Ltd Valhall GPU Kernel Driver: from r19p0 before r43p0 — fixed in r43p0

How to fix

Upgrade to a fixed version: Arm Ltd Arm 5th Gen GPU Architecture Kernel Driver r43p0; Arm Ltd Bifrost GPU Kernel Driver r43p0; Arm Ltd Valhall GPU Kernel Driver r43p0. Check the vendor advisory for mitigations.

References

• https://developer.arm.com/Arm%20Security%20Center/Mali%20GPU%20Driver%20Vulnerabilities
• https://developer.arm.com/Arm%20Security%20Center/Mali%20GPU%20Driver%20Vulnerabilities
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-4211

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