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CVE-2026-68461

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: device property: initialize the remaining fields of fwnode_handle in fwnode_init() If a firmware node is allocated on the stack…

Published Aug 15, 2026EPSS 0.18%

Overview

CVE-2026-68461 is a high-severity vulnerability. It was published on August 15, 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:

device property: initialize the remaining fields of fwnode_handle in fwnode_init()

If a firmware node is allocated on the stack (for instance: temporary

software node whose life-time we control) or on the heap - but using a

non-zeroing allocation function - and initialized using fwnode_init(),

its secondary pointer will contain uninitialized memory which likely

will be neither NULL nor IS_ERR() and so may end up being dereferenced

(for example: in dev_to_swnode()). Set fwnode->secondary to NULL on

initialization. While at it: initialize the remaining fields of struct

fwnode_handle too just to be sure.

[ Fix typo in commit message. - Danilo ]

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/0198d579948322cda5178b9672d448375a32f947Refgit.kernel.org/stable/c/173b61c9276c7b3a5fbcc63ae7aafc897fee1e18Refgit.kernel.org/stable/c/7eba000621fff223dd7bab484d48918c7c77a307Refgit.kernel.org/stable/c/9c86a1f930bb2ddb85f867b4736716e82a4a4683Refgit.kernel.org/stable/c/c81e2af41de6a159837c7129a4fc444ac6e48046Refgit.kernel.org/stable/c/c8542b68ba6ef4f61072098893a3f5b71c569b6cRefgit.kernel.org/stable/c/f0b4e1cc8ad76baf49d898727eb52e91a4ef0544

How CyberStrike helps

Frequently asked questions

What is CVE-2026-68461?

CVE-2026-68461 is a high-severity vulnerability. It was published on August 15, 2026 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2026-68461?

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-2026-68461?

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-2026-68461?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-68461 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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