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CVE-2026-43138

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: reset: gpio: suppress bind attributes in sysfs This is a special device that's created dynamically and is supposed to stay in m…

Published May 6, 2026CWE-416EPSS 0.17%

Overview

CVE-2026-43138 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:

reset: gpio: suppress bind attributes in sysfs

This is a special device that's created dynamically and is supposed to

stay in memory forever. We also currently don't have a devlink between

it and the actual reset consumer. Suppress sysfs bind attributes so that

user-space can't unbind the device because - as of now - it will cause a

use-after-free splat from any user that puts the reset control handle.

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/09d6efc6abd42809956d598906c222ccd1c8ae92Refgit.kernel.org/stable/c/16de4c6a8fe9ff497ca1aba33ef0dbee09f11952Refgit.kernel.org/stable/c/1d7d869f074f98c34fe23f6a56e5f3acc1f95a2bRefgit.kernel.org/stable/c/76801c3dfca0ac6339a23e9615b5f23e25b8644c

How CyberStrike helps

Frequently asked questions

What is CVE-2026-43138?

CVE-2026-43138 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-2026-43138?

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-2026-43138?

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-2026-43138?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-43138 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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