Is CVE-2023-5643 in the CISA KEV catalog?

No. CVE-2023-5643 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-5643?

CVE-2023-5643 has a CVSS v3 base score of 7.8 (HIGH).

What is the EPSS score for CVE-2023-5643?

CVE-2023-5643 has an EPSS score of 0.18% (8th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-5643?

Upgrade 5th gen gpu architecture kernel driver to r46p0 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2023-5643

HIGH

7.8

CVSS v3

NVD

Description

Out-of-bounds Write 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 memory processing operations. Depending on the configuration of the Mali GPU Kernel Driver, and if the system’s memory is carefully prepared by the user, then this in turn could write to memory outside of buffer bounds.This issue affects Bifrost GPU Kernel Driver: from r41p0 through r45p0; Valhall GPU Kernel Driver: from r41p0 through r45p0; Arm 5th Gen GPU Architecture Kernel Driver: from r41p0 through r45p0.

CWE-787Out-of-bounds Write

How to fix

Remediation Available

5th gen gpu architecture kernel driverNVD

Affected:>= r41p0, < r46p0Fixed in:r46p0CVE-2023-5643derived from NVD

bifrost gpu kernel driverNVD

Affected:>= r41p0, < r46p0Fixed in:r46p0CVE-2023-5643derived from NVD

valhall gpu kernel driverNVD

Affected:>= r41p0, < r46p0Fixed in:r46p0CVE-2023-5643derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.18%probability of exploitation in 30 days

8thpercentile

Low risk: more likely to be exploited than 8% of all known CVEs.

References

Vendor Advisory1

developer.arm.com

Related Vulnerabilities

Other CWE-787 (Out-of-bounds Write) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2025-22457	Critical	9.0	100%	KEV + Ransom	Fix
CVE-2025-0282	Critical	9.0	100%	KEV + Ransom	-
CVE-2015-3113	Critical	9.8	100%	KEV	Fix
CVE-2021-20038	Critical	9.8	100%	KEV + Ransom	-
CVE-2023-4863	High	8.8	100%	KEV	Fix
CVE-2020-16040	Medium	6.5	100%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-05-15.