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CVE-2026-72238

In the Linux kernel, the following vulnerability has been resolved: x86/boot: Validate console=uart8250 baud rate to fix early boot hang When the baud rate is empty, 0, invalid, or overflows to 0…

Published Aug 15, 2026EPSS 0.22%

Overview

CVE-2026-72238 is a known-severity vulnerability. It was published on August 15, 2026.

Technical description

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

x86/boot: Validate console=uart8250 baud rate to fix early boot hang

When the baud rate is empty, 0, invalid, or overflows to 0 when stored

as an int, the system will hang during early boot because of a division

by zero in early_serial_init().

Fall back to DEFAULT_BAUD when the resulting baud rate is 0 to prevent

an early system hang.

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/24fbed0a2a45f5f379ef2b53bd2abe58be1142adRefgit.kernel.org/stable/c/4dad7e870c7e5178f71b5e1e4f67934b9e8cc207Refgit.kernel.org/stable/c/9a77a7639dfdc3eca417cd37620ce64da79c80c4Refgit.kernel.org/stable/c/b4d05032e9af7137eab8f3af2855073f896ca843Refgit.kernel.org/stable/c/c1a276a731d02cbb728d0530f327a68728f2d8b0Refgit.kernel.org/stable/c/efa96a22613b86e05cd81229ce0be411c1a4a79aRefgit.kernel.org/stable/c/f7c67c97b37c11f2a95c204092fb8159f2779e8fRefgit.kernel.org/stable/c/ffa0aa5b625fe0bed7463ac613f8b06676ff4542

How CyberStrike helps

Frequently asked questions

What is CVE-2026-72238?

CVE-2026-72238 is a known-severity vulnerability. It was published on August 15, 2026.

How severe is CVE-2026-72238?

CVSS score information is not yet available for this vulnerability. Check back as the CVE record is updated by NVD analysts.

How do I fix or remediate CVE-2026-72238?

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-2026-72238?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-72238 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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