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8.8
HIGH CVSS 3.1
CVE-2022-46891
Arm Mali GPU Kernel Driver Use-After-Free Vulnerability
Description

An issue was discovered in the Arm Mali GPU Kernel Driver. There is a use-after-free. A non-privileged user can make improper GPU processing operations to gain access to already freed memory. This affects Midgard r13p0 through r32p0, Bifrost r1p0 through r40p0, and Valhall r19p0 through r40p0.

INFO

Published Date :

Jan. 17, 2023, 8:15 a.m.

Last Modified :

Nov. 21, 2024, 7:31 a.m.

Remotely Exploit :

Yes !

Source :

[email protected]
Affected Products

The following products are affected by CVE-2022-46891 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Arm bifrost_gpu_kernel_driver
2 Arm midgard_gpu_kernel_driver
3 Arm valhall_gpu_kernel_driver
: Total Affected Vendor : 1 | Products : 3
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 HIGH [email protected]
Solution
This information is provided by the 3rd party feeds.
  • Upgrade to Mali GPU Kernel Driver r41p0 or later.
Public PoC/Exploit Available at Github

CVE-2022-46891 has a 1 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2022-46891.

URL Resource
https://developer.arm.com/Arm%20Security%20Center/Mali%20GPU%20Driver%20Vulnerabilities Vendor Advisory
https://developer.arm.com/Arm%20Security%20Center/Mali%20GPU%20Driver%20Vulnerabilities Vendor Advisory
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2022-46891 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2022-46891 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Profile Photo
1337eng/arm_mali_open_source_drivers

Arm mali open source drivers

Makefile C Assembly Starlark

Updated: 9 months, 2 weeks ago
0 stars 0 fork 0 watcher
Born at : Nov. 4, 2024, 1:50 p.m. This repo has been linked 46 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2022-46891 vulnerability anywhere in the article.

  • Daily CyberSecurity
Arm’s SME2 Supercharges Mobile AI: 6x Faster Responses & On-Device Gemma 3

As AI applications at the device level continue to gain traction, with increasing complexity in tasks ranging from photography and voice recognition to video processing and interaction with AI assista ... Read more

Published Date: Jul 17, 2025 (1 month, 1 week ago)

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2022-46891 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://developer.arm.com/Arm%20Security%20Center/Mali%20GPU%20Driver%20Vulnerabilities
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Reanalysis by [email protected]

    Dec. 14, 2023

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:arm:bifrost:*:*:*:*:*:*:*:* versions from (including) r1p0 up to (including) r40p0 *cpe:2.3:a:arm:midgard:*:*:*:*:*:*:*:* versions from (including) r13p0 up to (including) r32p0 *cpe:2.3:a:arm:valhall:*:*:*:*:*:*:*:* versions from (including) r19p0 up to (including) r40p0 OR *cpe:2.3:a:arm:bifrost_gpu_kernel_driver:*:*:*:*:*:*:*:* versions from (including) r1p0 up to (including) r40p0 *cpe:2.3:a:arm:midgard_gpu_kernel_driver:*:*:*:*:*:*:*:* versions from (including) r13p0 up to (including) r32p0 *cpe:2.3:a:arm:valhall_gpu_kernel_driver:*:*:*:*:*:*:*:* versions from (including) r19p0 up to (including) r40p0
  • Initial Analysis by [email protected]

    Jan. 24, 2023

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://developer.arm.com/Arm%20Security%20Center/Mali%20GPU%20Driver%20Vulnerabilities No Types Assigned https://developer.arm.com/Arm%20Security%20Center/Mali%20GPU%20Driver%20Vulnerabilities Vendor Advisory
    Added CWE NIST CWE-416
    Added CPE Configuration OR *cpe:2.3:a:arm:bifrost:*:*:*:*:*:*:*:* versions from (including) r1p0 up to (including) r40p0 *cpe:2.3:a:arm:midgard:*:*:*:*:*:*:*:* versions from (including) r13p0 up to (including) r32p0 *cpe:2.3:a:arm:valhall:*:*:*:*:*:*:*:* versions from (including) r19p0 up to (including) r40p0
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 8.8
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.20 }} -0.14%

score

0.38790

percentile