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CVE-2026-74458

Published Aug 15, 2026 EPSS 0.18% (7th pctl)

Overview

CVE-2026-74458 is a known-severity vulnerability. It was published on August 15, 2026.

Technical Description

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

can: kvaser_usb_leaf: kvaser_usb_leaf_wait_cmd(): validate received command extents

The wait and bulk receive paths walk variable-length commands from a

USB buffer. A nonzero command shorter than CMD_HEADER_LEN can still be

dispatched, and the wait path copies a matching command into a fixed

caller-owned struct kvaser_cmd using the device-provided length.

Reject nonzero commands that do not contain the fixed header or that

extend beyond the current USB buffer item. In the wait path, also reject

a matching command that exceeds the destination before copying it.

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

Ref git.kernel.org/stable/c/0293dd153f9dbc1ddf5dacdccc76b363bce4a8ee Ref git.kernel.org/stable/c/185cb1fa38142a3cbf223dd8b3abb24217f330d3 Ref git.kernel.org/stable/c/21f0465fd86d77794aaed8e05f833634f68d178d Ref git.kernel.org/stable/c/3d0897ec623e422695d70d80ae456f89476c5328 Ref git.kernel.org/stable/c/695aea154bb2d453e6daada1510972fafd075285 Ref git.kernel.org/stable/c/72f96c2942f11a0ae8663adcb3d9ee986e07d4fa Ref git.kernel.org/stable/c/c00ec53d7dec08134e97071850cc00ef000c5b77 Ref git.kernel.org/stable/c/d9e91672526ffa279709b15490118aea1bdee714

Frequently Asked Questions

What is CVE-2026-74458?

CVE-2026-74458 is a known-severity vulnerability. It was published on August 15, 2026.

How severe is CVE-2026-74458?

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-2026-74458?

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-2026-74458?

CyberStrike's AI-powered security agents can automatically detect CVE-2026-74458 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.

How CyberStrike Helps

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