How severe is CVE-2022-46891?

CVE-2022-46891 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-46891 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-46891?

CVE-2022-46891 primarily affects Arm Bifrost Gpu Kernel Driver. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2022-46891?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2022-46891 published?

CVE-2022-46891 was published on 2023-01-17 and last updated on 2026-06-17.

CVE-2022-46891

CVE-2022-46891 is a high-severity vulnerability in Arm Bifrost Gpu Kernel Driver with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-416.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 1% (52nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-416
Affected product: Arm Bifrost Gpu Kernel Driver
Published: 2023-01-17
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2022-46891?: 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.
How severe is CVE-2022-46891?: CVE-2022-46891 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-46891 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-46891?: CVE-2022-46891 primarily affects Arm Bifrost Gpu Kernel Driver. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2022-46891?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2022-46891 published?: CVE-2022-46891 was published on 2023-01-17 and last updated on 2026-06-17.

References

https://developer.arm.com/Arm%20Security%20Center/Mali%20GPU%20Driver%20Vulnerabilities

Affected products (3)

cpe:2.3:a:arm:bifrost_gpu_kernel_driver:*:*:*:*:*:*:*:*
cpe:2.3:a:arm:midgard_gpu_kernel_driver:*:*:*:*:*:*:*:*
cpe:2.3:a:arm:valhall_gpu_kernel_driver:*:*:*:*:*:*:*:*

More vulnerabilities in Arm Bifrost Gpu Kernel Driver

CVE-2022-28349 — Critical (CVSS 9.8): Arm Mali GPU Kernel Driver has a use-after-free: Midgard r28p0 through r29p0 before r30p0, Bifrost r17p0 through r23p0…
CVE-2022-28348 — Critical (CVSS 9.8): Arm Mali GPU Kernel Driver (Midgard r4p0 through r31p0, Bifrost r0p0 through r36p0 before r37p0, and Valhall r19p0…
CVE-2022-46395 — High (CVSS 8.8): An issue was discovered in the Arm Mali GPU Kernel Driver. A non-privileged user can make improper GPU processing…
CVE-2022-38181 — High (CVSS 8.8): The Arm Mali GPU kernel driver allows unprivileged users to access freed memory because GPU memory operations are…
CVE-2021-29256 — High (CVSS 8.8): . The Arm Mali GPU kernel driver allows an unprivileged user to achieve access to freed memory, leading to information…
CVE-2021-28664 — High (CVSS 8.8): The Arm Mali GPU kernel driver allows privilege escalation or a denial of service (memory corruption) because an…

All CVEs affecting Arm Bifrost Gpu Kernel Driver →

Other CWE-416 (Use After Free) vulnerabilities

CVE-2026-13782 — Critical (CVSS 10.0): Use after free in Browser in Google Chrome prior to 150.0.7871.47 allowed a remote attacker who had compromised the…
CVE-2026-4725 — Critical (CVSS 10.0): Sandbox escape due to use-after-free in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 149…
CVE-2026-4688 — Critical (CVSS 10.0): Sandbox escape due to use-after-free in the Disability Access APIs component. This vulnerability was fixed in Firefox…
CVE-2025-24085 — Critical (CVSS 10.0): A use after free issue was addressed with improved memory management. This issue is fixed in iOS 18.3 and iPadOS 18.3,…
CVE-2024-43102 — Critical (CVSS 10.0): Concurrent removals of certain anonymous shared memory mappings by using the UMTX_SHM_DESTROY sub-request of…
CVE-2021-32495 — Critical (CVSS 10.0): Radare2 has a use-after-free vulnerability in pyc parser's get_none_object function. Attacker can read freed memory…

Browse all CWE-416 (Use After Free) vulnerabilities →