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CVE-2026-63881

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: fix a vulnerability of integer overflow in kfd debugger get_queue_ids() computes array_size = num_queues * sizeof(u…

Published Jul 19, 2026EPSS 0.19%

Overview

CVE-2026-63881 is a high-severity vulnerability. It was published on July 19, 2026 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

drm/amdkfd: fix a vulnerability of integer overflow in kfd debugger

get_queue_ids() computes array_size = num_queues * sizeof(uint32_t),

which could overflow on 32-bit size_t build. using array_size()

instead, it saturates to SIZE_MAX on overflow.

(cherry picked from commit 2d57a0475f085c08b49312dfd8edcb461845f285)

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/4e5f808b454167cc58d7084a407a554d8ddc694dRefgit.kernel.org/stable/c/4f9eeedc3d3151f8a226fd676c314a813edda5a1Refgit.kernel.org/stable/c/5cf4a41aa0d74e4c83f82d2ce233b5189ed4b43cRefgit.kernel.org/stable/c/93f5534b35a05ef8a0109c1eefa800062fee810aRefgit.kernel.org/stable/c/de70a80992396ee306ee3a2810ad28aa1608ba9b

How CyberStrike helps

Frequently asked questions

What is CVE-2026-63881?

CVE-2026-63881 is a high-severity vulnerability. It was published on July 19, 2026 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2026-63881?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-63881?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-63881?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-63881 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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