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CVE-2026-80594

In the Linux kernel, the following vulnerability has been resolved: Input: ims-pcu - fix potential infinite loop in CDC union descriptor parsing The driver parses CDC union descriptors in ims_pcu…

Published Aug 28, 2026EPSS 0.22%

Overview

CVE-2026-80594 is a known-severity vulnerability. It was published on August 28, 2026.

Technical description

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

Input: ims-pcu - fix potential infinite loop in CDC union descriptor parsing

The driver parses CDC union descriptors in ims_pcu_get_cdc_union_desc()

by iterating through the extra descriptor data. However, it does not

verify that the bLength of each descriptor is at least 2. A malicious

device could provide a descriptor with bLength = 0, leading to an

infinite loop in the driver.

Add a check to ensure bLength is at least 2 before proceeding with

parsing.

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/383934c249a9817d242d02d30bfbc8defbf0d533Refgit.kernel.org/stable/c/6314bd9e2a6b3362998dc85485dd4b0f133a3532Refgit.kernel.org/stable/c/67a038c5a7c9bd8aabe6fba8ac9d2e31c0bd5a28Refgit.kernel.org/stable/c/76eeeb3a8e3c13d5c0ef28666b57dcb5cc101a32Refgit.kernel.org/stable/c/b847f2725ef47a26b3d01eca3d54fd811e5a544dRefgit.kernel.org/stable/c/bbbe31486cf2d12177462e4a814244c2597c9849Refgit.kernel.org/stable/c/d4579af29e67ca8722db0a1194227f8015c8981dRefgit.kernel.org/stable/c/e3f93d63dcd48c1f0ba9041f2ffa8aea7170e295

How CyberStrike helps

Frequently asked questions

What is CVE-2026-80594?

CVE-2026-80594 is a known-severity vulnerability. It was published on August 28, 2026.

How severe is CVE-2026-80594?

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-2026-80594?

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-2026-80594?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-80594 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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