CVE-2023-5427

Name: CVE-2023-5427
Creator: NVD / NIST
Published: 2023-12-01T11:15:07.98+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 0.33%

Last modified Jun 17, 2026

CVE-2023-5427 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. Use After Free vulnerability in Arm Ltd Bifrost GPU Kernel Driver, Arm Ltd Valhall GPU Kernel Driver, Arm Ltd Arm 5th Gen GPU Architecture Kernel Driver allows a local non-privileged user to make improper GPU processing operations to gain access to already freed memory.This issue affects Bifrost GPU Kernel Driver: from r44p0 through r45p0; Valhall GPU Kernel Driver: from r44p0 through r45p0; Arm 5th Gen GPU Architecture Kernel Driver: from r44p0 through r45p0.. EPSS estimates a 0.33% chance of exploitation in the next 30 days.

Description

Use After Free vulnerability in Arm Ltd Bifrost GPU Kernel Driver, Arm Ltd Valhall GPU Kernel Driver, Arm Ltd Arm 5th Gen GPU Architecture Kernel Driver allows a local non-privileged user to make improper GPU processing operations to gain access to already freed memory.This issue affects Bifrost GPU Kernel Driver: from r44p0 through r45p0; Valhall GPU Kernel Driver: from r44p0 through r45p0; Arm 5th Gen GPU Architecture Kernel Driver: from r44p0 through r45p0.

Metrics

CVSS 3.1

7.8/10

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

EPSS Probability

0.33%

25.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Arm	5th Gen Gpu Architecture Kernel Driver	>= r44p0, < r46p0
Arm	Bifrost Gpu Kernel Driver	>= r44p0, < r46p0
Arm	Valhall Gpu Kernel Driver	>= r44p0, < r46p0

References

http://packetstormsecurity.com/files/176029/ARM-Mali-r44p0-Use-After-Free.htmlExploit, Third Party Advisory, VDB Entry
https://developer.arm.com/Arm%20Security%20Center/Mali%20GPU%20Driver%20VulnerabilitiesVendor Advisory
http://packetstormsecurity.com/files/176029/ARM-Mali-r44p0-Use-After-Free.htmlExploit, Third Party Advisory, VDB Entry
https://developer.arm.com/Arm%20Security%20Center/Mali%20GPU%20Driver%20VulnerabilitiesVendor Advisory

Timeline

Published: Dec 1, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-5427?

How severe is CVE-2023-5427?

CVE-2023-5427 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.33% probability of exploitation in the next 30 days.

How do I fix CVE-2023-5427?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-5427?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST