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CVE-2026-80593

8.4 · HIGH

In the Linux kernel, the following vulnerability has been resolved: hwmon: (asus_atk0110) Check package count before accessing element atk_ec_present() walks the management group package returned…

Published Aug 28, 2026EPSS 0.20%

Overview

CVE-2026-80593 is a high-severity vulnerability. It was published on August 28, 2026 and has a CVSS 3.1 base score of 8.4 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.4, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

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

hwmon: (asus_atk0110) Check package count before accessing element

atk_ec_present() walks the management group package returned by the GGRP

ACPI method and, for each sub-package, reads its first element:

id = &obj->package.elements[0];

if (id->type != ACPI_TYPE_INTEGER)

without checking that the sub-package is non-empty. ACPICA allocates the

element array with exactly package.count entries, so for a sub-package

with a zero count this reads past the allocation.

The sibling function atk_debugfs_ggrp_open() performs the same access but

skips empty packages with a package.count check first. Add the same

check to atk_ec_present() so a malformed firmware package cannot trigger

an out-of-bounds read.

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/2a137124664aad1e36d8d74e8e2207365a04737fRefgit.kernel.org/stable/c/459b0a0439ea65b2b612aa572eb62a2e26d05618Refgit.kernel.org/stable/c/76392d35c8df471b288cfc6536bd092b3c8ee2cfRefgit.kernel.org/stable/c/768f20e7bb48d723b82cb142120263d0806fbeb8Refgit.kernel.org/stable/c/981a8a2e3773dc7e704943388a1fb97970b23275Refgit.kernel.org/stable/c/b770fcfcdced569bcf7c6982aeea8c3d11a21c2bRefgit.kernel.org/stable/c/d8d4fa0c4f818e30b6f6737bdd989b7e2b511caeRefgit.kernel.org/stable/c/e2735b39f044bad7bf2017aef248935525bc0b97

How CyberStrike helps

Frequently asked questions

What is CVE-2026-80593?

CVE-2026-80593 is a high-severity vulnerability. It was published on August 28, 2026 and has a CVSS 3.1 base score of 8.4 (HIGH).

How severe is CVE-2026-80593?

This vulnerability has a CVSS 3.1 base score of 8.4, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-80593?

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-2026-80593?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-80593 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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