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CVE-2026-68387

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: can: raw: add locking for raw flags bitfield With commit 890e5198a6e5 ("can: raw: use bitfields to store flags in struct raw_so…

Published Aug 10, 2026EPSS 0.17%

Overview

CVE-2026-68387 is a high-severity vulnerability. It was published on August 10, 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:

can: raw: add locking for raw flags bitfield

With commit 890e5198a6e5 ("can: raw: use bitfields to store flags in

struct raw_sock") the formerly separate integer values have been integrated

into a single bitfield. This led to a read-modify-write operation when

changing a flag in raw_setsockopt() which now needs a locking to prevent

concurrent access.

Instead of adding a lock/unlock hell in each of the flag manipulations this

patch introduces a wrapper for a new raw_setsockopt_locked() function

analogue to the isotp_setsockopt[_locked]() approach in net/can/isotp.c

[mkl: use Closes tag instead of Link]

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/00ba4bf8798242253fefc1fa6a78db1d445fd024Refgit.kernel.org/stable/c/1e5185c090589f4146d728ab36417d8a5419f127Refgit.kernel.org/stable/c/57791aab1129c9405f84bb0882de58967d8b44cd

How CyberStrike helps

Frequently asked questions

What is CVE-2026-68387?

CVE-2026-68387 is a high-severity vulnerability. It was published on August 10, 2026 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2026-68387?

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-2026-68387?

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-2026-68387?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-68387 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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