Is CVE-2023-5427 in the CISA KEV catalog?

No. CVE-2023-5427 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-5427?

CVE-2023-5427 has a CVSS v3 base score of 7.8 (HIGH).

What is the EPSS score for CVE-2023-5427?

CVE-2023-5427 has an EPSS score of 0.33% (25th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-5427?

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

CVE & CISA-KEV Catalog

CVE-2023-5427

HIGH

7.8

CVSS v3

NVD

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.

CWE-416Use After Free

How to fix

Remediation Available

5th gen gpu architecture kernel driverNVD

Affected:>= r44p0, < r46p0Fixed in:r46p0CVE-2023-5427derived from NVD

bifrost gpu kernel driverNVD

Affected:>= r44p0, < r46p0Fixed in:r46p0CVE-2023-5427derived from NVD

valhall gpu kernel driverNVD

Affected:>= r44p0, < r46p0Fixed in:r46p0CVE-2023-5427derived 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

0.33%probability of exploitation in 30 days

25thpercentile

Low risk: more likely to be exploited than 25% of all known CVEs.

References

Exploit1

packetstormsecurity.com

Vendor Advisory1

developer.arm.com

Related Vulnerabilities

Other CWE-416 (Use After Free) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2019-0708	Critical	9.8	100%	KEV + Ransom	-
CVE-2021-31166	Critical	9.8	100%	KEV	Fix
CVE-2015-5119	Critical	9.8	99%	KEV	-
CVE-2010-3962	High	8.1	97%	KEV	-
CVE-2015-0313	Critical	9.8	96%	KEV	Fix
CVE-2017-9798	High	7.5	95%	-	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 2026-02-25.