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Vulnerability record · CVE-2023-4969 · published 16 January 2024

CVE-2023-4969: Khronos opencl memory leak vulnerability

Khronos · Opencl

A GPU kernel can read sensitive data from another GPU kernel (even from another user or app) through an optimized GPU memory region called _local memory_ on various architectures.

6.5 CVSS 3.1 Medium EPSS 1.2% · top 33.2% CWE-401 · Memory leak
6.5CVSS 3.1 base score
1.2%EPSS exploitation probability, 30 days
NoNot in CISA KEV
132Affected product versions listed by NVD
10References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

A GPU kernel can read sensitive data from another GPU kernel (even from another user or app) through an optimized GPU memory region called _local memory_ on various architectures.

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

Affected products

132 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://blog.trailofbits.com ExploitMitigationThird Party Advisory
https://kb.cert.org/vuls/id/446598 Third Party AdvisoryUS Government Resource
https://registry.khronos.org/OpenCL/specs/3.0-unified/html/OpenCL_API.html#_fundamental_memory_regions Technical Description
https://registry.khronos.org/vulkan/specs/1.3-extensions/html/index.html Vendor Advisory
https://www.kb.cert.org/vuls/id/446598 Third Party AdvisoryUS Government Resource
https://blog.trailofbits.com ExploitMitigationThird Party Advisory
https://kb.cert.org/vuls/id/446598 Third Party AdvisoryUS Government Resource
https://registry.khronos.org/OpenCL/specs/3.0-unified/html/OpenCL_API.html#_fundamental_memory_regions Technical Description
https://registry.khronos.org/vulkan/specs/1.3-extensions/html/index.html Vendor Advisory
https://www.kb.cert.org/vuls/id/446598 Third Party AdvisoryUS Government Resource

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

3.3CVE-2023-26083Arm Mali GPU Kernel Driver memory leak exposes kernel metadataThe Arm Mali GPU kernel driver has a memory leak (CWE-401) across Midgard r6p0-r32p0, Bifrost r0p0-r42p0, Valhall r19p0-r42p0, and Avalon r41p0-r42p0…KEVEPSS 1.2%analysed8.6CVE-2018-0158Cisco IOS and IOS XE IKEv2 packet handling memory leak DoSCisco IOS and IOS XE mishandle certain IKEv2 packets, causing improper input validation that leaks memory. Repeated crafted packets drive continuous …KEVEPSS 7.2%analysed

Source: NIST National Vulnerability Database (record CVE-2023-4969), CISA KEV, FIRST EPSS (scores of 2026-10-05). This page is refreshed as NVD updates the record.