CVE-2023-4969

CVE-2023-4969 is a medium-severity vulnerability in Khronos Opencl with a CVSS 3.x base score of 6.5. 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-401.

Key facts

• Severity: Medium (CVSS 3.x base score 6.5)
• EPSS exploit prediction: 1% (64th percentile)
• Actively exploited: Not listed in CISA KEV
• EU (EUVD) id: EUVD-2023-54805
• Weakness: CWE-401
• Affected product: Khronos Opencl
• Published: 2024-01-16
• Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2023-4969?

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.

How severe is CVE-2023-4969?

CVE-2023-4969 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2023-4969 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-4969?

CVE-2023-4969 primarily affects Khronos Opencl. In total, 132 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-4969?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2023-4969 have an EU (EUVD) identifier?

Yes. CVE-2023-4969 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-54805.

When was CVE-2023-4969 published?

CVE-2023-4969 was published on 2024-01-16 and last updated on 2026-06-17.

References

• https://blog.trailofbits.com
• https://kb.cert.org/vuls/id/446598
• https://registry.khronos.org/OpenCL/specs/3.0-unified/html/OpenCL_API.html#_fundamental_memory_regions
• https://registry.khronos.org/vulkan/specs/1.3-extensions/html/index.html
• https://www.kb.cert.org/vuls/id/446598

Affected products (132)

• cpe:2.3:a:khronos:opencl:*:*:*:*:*:*:*:*
• cpe:2.3:a:khronos:vulkan:*:*:*:*:*:*:*:*
• cpe:2.3:a:imaginationtech:ddk:*:*:*:*:*:*:*:*
• cpe:2.3:o:amd:instinct_mi300x_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:amd:instinct_mi300a_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:amd:instinct_mi250_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:amd:instinct_mi210_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:amd:instinct_mi100_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:amd:radeon_instinct_mi50_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:amd:radeon_instinct_mi25_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:amd:radeon_pro_v620_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:amd:radeon_pro_v520_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:amd:radeon_pro_w7600_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:amd:radeon_pro_w7500_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:amd:radeon_pro_w6400_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:amd:radeon_pro_w6500m_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:amd:radeon_pro_w6300m_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:amd:radeon_pro_w5700x_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:amd:radeon_pro_w5500x_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:amd:radeon_rx_7900xtx_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:amd:radeon_rx_7900xt_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:amd:radeon_rx_7800xt_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:amd:radeon_rx_7700xt_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:amd:radeon_rx_7600xt_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:amd:radeon_rx_7600_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:amd:radeon_rx_6950xt_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:amd:radeon_rx_6900xt_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:amd:radeon_rx_6800xt_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:amd:radeon_rx_6800_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:amd:radeon_rx_5300m_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:amd:radeon_rx_5300_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:amd:radeon_rx_5300xt_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:amd:radeon_rx_5500m_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:amd:radeon_rx_5500_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:amd:radeon_rx_5500xt_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:amd:radeon_rx_5600m_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:amd:radeon_rx_5600_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:amd:radeon_rx_5600xt_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:amd:radeon_rx_5700m_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:amd:radeon_rx_5700_firmware:-:*:*:*:*:*:*:*

Other CWE-401 (Missing Release of Memory after Effective Lifetime) vulnerabilities

• CVE-2022-0742 — Critical (CVSS 9.1): Memory leak in icmp6 implementation in Linux Kernel 5.13+ allows a remote attacker to DoS a host by making it go…
• CVE-2024-25450 — High (CVSS 8.8): imlib2 v1.9.1 was discovered to mishandle memory allocation in the function init_imlib_fonts().
• CVE-2023-33718 — High (CVSS 8.8): mp4v2 v2.1.3 was discovered to contain a memory leak via MP4File::ReadString() at mp4file_io.cpp
• CVE-2021-40633 — High (CVSS 8.8): A memory leak (out-of-memory) in gif2rgb in util/gif2rgb.c in giflib 5.1.4 allows remote attackers trigger an out of…
• CVE-2021-3492 — High (CVSS 8.8): Shiftfs, an out-of-tree stacking file system included in Ubuntu Linux kernels, did not properly handle faults occurring…
• CVE-2019-17340 — High (CVSS 8.8): An issue was discovered in Xen through 4.11.x allowing x86 guest OS users to cause a denial of service or gain…

Browse all CWE-401 (Missing Release of Memory after Effective Lifetime) vulnerabilities →