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CVE-2026-43206

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: Fix out-of-bounds write in kfd_event_page_set() The kfd_event_page_set() function writes KFD_SIGNAL_EVENT_LIMIT * 8…

Published May 6, 2026CWE-787EPSS 0.14%

Overview

CVE-2026-43206 is a high-severity vulnerability. It was published on May 6, 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 out-of-bounds write in kfd_event_page_set()

The kfd_event_page_set() function writes KFD_SIGNAL_EVENT_LIMIT * 8

bytes via memset without checking the buffer size parameter. This allows

unprivileged userspace to trigger an out-of bounds kernel memory write

by passing a small buffer, leading to potential privilege

escalation.

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/3e04bc310d80b46eaf481f1fefcbcb37a187412dRefgit.kernel.org/stable/c/4857c37c7ba9aa38b9a4c694e8bd8d0091c87940Refgit.kernel.org/stable/c/4e72f419e4ed44cb3b60506752d8688c20a60a9bRefgit.kernel.org/stable/c/75fb57efdd7863fffbc39db23e9cad7aafda26edRefgit.kernel.org/stable/c/8a70a26c9f34baea6c3199a9862ddaff4554a96dRefgit.kernel.org/stable/c/b4034442cb090e4a980bdcc1540948606cbc951bRefgit.kernel.org/stable/c/bfcd6b53e1f4feb182952f4ff9a137c36ceaf20bRefgit.kernel.org/stable/c/de8d7a25cd2eb5875b1d8d4fbc7fe4b4138b781f

How CyberStrike helps

Frequently asked questions

What is CVE-2026-43206?

CVE-2026-43206 is a high-severity vulnerability. It was published on May 6, 2026 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2026-43206?

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-2026-43206?

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-2026-43206?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-43206 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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