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CVE-2026-74457

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

Overview

CVE-2026-74457 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: peak_usb: add bounds check for USB channel index

The channel control index ctrl_idx is derived from rx->len which comes

directly from a device USB payload. The mask 0x0f allows values 0-15, but

the array size of usb_if->dev[] is only 2. Values 2-15 cause heap

out-of-bounds read, eventually causing kernel panic in the IRQ context.

Add bounds checking for ctrl_idx before the array access in both

pcan_usb_pro_handle_canmsg() and pcan_usb_pro_handle_error().

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/0149fdb50a30944827acf9600a2cc44de0325a7f Ref git.kernel.org/stable/c/0c9268457bd6e4058fe55b4db01b16661c2eacf5 Ref git.kernel.org/stable/c/18b1a868a2cda66fb438007ba47ce5f2484db381 Ref git.kernel.org/stable/c/1acab790b7cecd4e144d1d18bdfe549e282f6b0b Ref git.kernel.org/stable/c/39132f166ca8ce00ae60d8a9068e06a60943cc4b Ref git.kernel.org/stable/c/825c903ca3c98cd0cf0e3de8ab8f2604a5339b3f Ref git.kernel.org/stable/c/94fb6fe83ce152532b11b36730b30f3dc0c94217 Ref git.kernel.org/stable/c/f97b7e5e1cdaae15cd95b3a360028c7929664969

Frequently Asked Questions

What is CVE-2026-74457?

CVE-2026-74457 is a known-severity vulnerability. It was published on August 15, 2026.

How severe is CVE-2026-74457?

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-2026-74457?

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-2026-74457?

CyberStrike's AI-powered security agents can automatically detect CVE-2026-74457 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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